Quick Facts

  • Manufacturer: Phillips Industries
  • Product Family: STA-DRY S7
  • Product Type: Swiveling seven-way trailer electrical connection and wire-management system
  • Primary Connector: Replaceable seven-way QCS2 female socket
  • Socket Movement: 80 degrees side to side, with 40 degrees of movement in each direction
  • Protection Feature: Automatic disconnect intended to reduce pull-away damage
  • Housing: Weather-resistant nosebox with a stainless-steel swivel-socket housing
  • Circuit-Breaker Options: No circuit breakers, 20-amp circuit breakers, or 30-amp circuit breakers
  • Complete-System Option: S7 nosebox, two anodized swinging gladhands, and galvanized mounting plate
  • Gladhand Movement: Up to 180 degrees on complete S7 System configurations
  • Primary Applications: Commercial semitrailers, dry vans, refrigerated trailers, flatbeds, tank trailers, and vocational trailers
  • Primary Benefit: Allows the electrical cable and air lines to follow tractor movement while reducing connector and pull-away damage
  • Production Status: Current product family with multiple configurations and replacement components

Overview

The Phillips STA-DRY S7 Seven-Way Connection System is a swiveling trailer electrical socket and wire-management system designed to reduce damage caused by severe tractor-and-trailer articulation.

The seven-way socket can move 40 degrees to either side, allowing the electrical cable to follow tractor movement instead of pulling against a rigid trailer socket. If the cable is subjected to excessive force, the system’s automatic disconnect feature allows the connection to separate before major damage occurs.

The S7 uses Phillips’ replaceable QCS2 quick-change socket, allowing technicians to replace the exposed socket without rewiring the complete trailer harness. The surrounding nosebox provides protected space for organizing trailer conductors and optional circuit breakers.

Phillips also offers a complete STA-DRY S7 System that combines the swiveling electrical connection with swinging service and emergency gladhands mounted on a galvanized trailer plate.

Key Characteristics

  • Swiveling seven-way commercial trailer socket
  • 80 degrees of total side-to-side movement
  • 40 degrees of movement in either direction
  • Automatic disconnect for pull-away protection
  • Replaceable QCS2 quick-change socket
  • Weather-resistant nosebox housing
  • Stainless-steel swivel-socket housing
  • Sealed interior wiring
  • Increased interior space for trailer-wire organization
  • Optional quick-change circuit breakers
  • Available with PERMALOGIC trailer-lighting controls
  • Complete system available with swiveling gladhands
  • Designed for corrosion resistance and commercial service

Major Components

  • STA-DRY S7 swivel housing
  • Replaceable QCS2 seven-way socket
  • Socket cover
  • Swivel pivot assembly
  • Automatic-disconnect mechanism
  • Weather-resistant nosebox
  • Removable nosebox lid
  • Internal electrical terminals
  • Trailer wiring connections
  • Optional 20-amp circuit breakers
  • Optional 30-amp circuit breakers
  • Optional PERMALOGIC controller
  • Mounting hardware
  • Galvanized mounting plate on complete systems
  • Service and emergency swinging gladhands on complete systems

Product Type and Construction

The S7 combines a seven-way trailer socket, swiveling support mechanism, and protected electrical enclosure. The socket is mounted within a stainless-steel swivel housing attached to the front of the nosebox.

The nosebox protects the trailer’s front electrical connections and provides working space for wiring and circuit protection. Phillips states that the S7 provides more than 50 percent additional interior room compared with traditional nosebox designs.

Complete S7 System configurations place the electrical nosebox and two anodized swinging gladhands on a common galvanized mounting plate.

How the Electrical Component or System Works

The tractor’s seven-way electrical cable plugs into the QCS2 socket on the front of the trailer. The socket transfers electrical power, ground continuity, lighting signals, ABS power, and approved auxiliary circuits into the trailer wiring system.

During tight turns, the S7 swivel allows the socket to move toward the tractor. This reduces sideways loading on the cable, plug, socket, nosebox, and trailer mounting surface.

If the tractor pulls far enough away to create excessive cable tension, the automatic-disconnect feature allows the plug to separate from the socket rather than transferring the full pull-away force into the trailer components.

Position and Function Within the Vehicle

The S7 is normally mounted on the front wall or nose structure of a semitrailer. It is positioned where the tractor’s electrical cable can reach the socket throughout normal fifth-wheel articulation.

The system serves as the trailer’s primary front electrical connection. Complete versions also provide organized mounting points for the service and emergency air-brake connections.

Common Specifications

  • Electrical Connector: Seven-way female commercial trailer socket
  • Socket Technology: Phillips QCS2 quick-change socket
  • Swivel Range: 80 degrees total
  • Side-to-Side Movement: 40 degrees in each direction
  • Standard Swivel-Only Part Number: 16-9500
  • Nosebox Without Circuit Breakers: 16-9510
  • Nosebox With 20-Amp Circuit Breakers: 16-9520
  • Nosebox With 30-Amp Circuit Breakers: 16-9530
  • 20-Amp Replacement Circuit Breaker: 53-120
  • 30-Amp Replacement Circuit Breaker: 53-130
  • Complete-System Mounting Plate: 11 inches by 21 inches
  • Approximate Complete-System Mounting Area: 12.25 inches by 24 inches
  • Gladhand Movement: 180 degrees on complete-system configurations
  • Replacement Lid: Part number 16-9515 for applicable standard S7 configurations
  • System Voltage: Application-specific commercial tractor-and-trailer electrical system

Operating Capacity and Performance

The S7’s electrical capacity depends on the QCS2 socket, internal wiring, installed circuit breakers, trailer harness, tractor electrical cable, system voltage, and loads connected to each circuit.

The swivel mechanism does not increase electrical capacity. Its purpose is to manage cable movement and reduce mechanical loading during tractor-and-trailer articulation.

Installation Position and System Function

The S7 should be positioned where it can follow tractor movement without contacting trailer structures, body equipment, refrigeration components, or air-line hardware.

The electrical cable should have sufficient working length for normal turns while remaining properly supported. Incorrect cable length or support can defeat the protection provided by the swivel mechanism.

System Voltage and Electrical Architecture

The S7 is commonly integrated into North American commercial tractor-and-trailer electrical architectures using a seven-way connection. Individual socket contacts carry separate power, ground, lighting, ABS, and auxiliary circuits.

The S7 does not generate or regulate electrical power. It provides a protected connection and distribution point between the tractor cable and trailer wiring.

Electrical Input, Output, and Power Function

Electrical input enters through the tractor’s seven-way cable and QCS2 socket. Internal terminals and conductors route the individual circuits into the trailer harness.

  • Ground circuit
  • Tail and marker lamp circuit
  • Left-turn and stop-lamp circuit
  • Right-turn and stop-lamp circuit
  • ABS or continuous auxiliary-power circuit
  • Application-specific auxiliary circuit
  • Application-specific brake or control circuit

Exact circuit assignments should be confirmed from the applicable vehicle wiring diagram and connector standard.

Voltage, Current, and Electrical Load Management

Every circuit must remain within the capacity of the socket contacts, internal conductors, trailer harness, circuit breakers, tractor cable, and connected equipment.

Selected versions use quick-change 20- or 30-amp circuit breakers. The installed breaker rating must match the wiring and circuit requirements. A higher-rated breaker should never be substituted to prevent repeated tripping.

Swivel and Automatic-Disconnect Design

The socket housing swivels through an 80-degree arc, allowing the tractor cable to pull the socket toward the direction of tractor movement. This reduces bending and sideways force at the plug-and-socket connection.

If the cable reaches the limit of normal travel, the automatic disconnect permits separation. This feature is intended to reduce damage to the socket, plug, electrical cable, nosebox, and trailer mounting structure.

Nosebox and Wire-Management Design

The S7 nosebox provides protected working space for trailer electrical connections. Its additional interior room helps technicians organize conductors and avoid pinching wires beneath the lid or around internal components.

Available noseboxes may include no circuit breakers, 20-amp breakers, 30-amp breakers, or PERMALOGIC lighting-control equipment.

Internal Components and Electrical Design

The replaceable seven-way socket connects to the protected trailer wiring inside the enclosure. Internal wiring routes the circuits to the trailer harness, circuit breakers, and optional electronic controls.

The QCS2 design allows the external socket to be replaced separately from the nosebox and main trailer wiring. Replacement kits are available for specified S7 configurations.

Materials and Component Construction

  • Stainless-steel swivel-socket housing
  • Weather-resistant nosebox housing
  • Molded QCS2 socket components
  • Conductive socket contacts
  • Insulated copper wiring
  • Corrosion-resistant mounting hardware
  • Quick-change circuit breakers on equipped models
  • Galvanized steel mounting plate on complete systems
  • Anodized swinging gladhands on complete systems
  • Weather-resistant lid and sealing components

Wiring, Terminals, Connectors, and Grounding

Trailer conductors should be routed neatly within the enclosure and secured so they cannot be pinched beneath the lid or pulled against circuit-breaker and terminal connections.

The ground circuit is critical to reliable trailer-light and ABS operation. Ground connections, the tractor cable, socket contacts, trailer harness, and chassis connections should be inspected as a complete system.

Circuit Protection and Electrical Safety

Applicable S7 configurations may use replaceable 20- or 30-amp circuit breakers. Each breaker must be matched to the conductor capacity and connected electrical load.

A repeatedly tripping breaker indicates a short circuit, overload, damaged conductor, defective component, or connection problem. The cause must be diagnosed instead of bypassing or increasing the breaker rating.

Controls, Monitoring, and Diagnostics

The standard S7 has no driver-operated electrical controls. Its socket transfers signals and power controlled by the tractor and trailer equipment.

PERMALOGIC-equipped versions may incorporate trailer dome-lamp control functions. The exact electronic features depend on the controller and S7 configuration installed.

Electronic Controls and Driver-Assistance Integration

The connection can carry the electrical power and ground required by trailer ABS, lighting controllers, monitoring devices, and approved auxiliary systems.

Low voltage or intermittent contact at the socket may produce ABS warnings, lighting faults, controller resets, or loss of auxiliary-equipment operation.

Power Demand, Capacity, and Energy Management

The S7 should carry only electrical loads approved for the trailer’s seven-way connection, wiring, and circuit protection. High-current devices such as liftgate charging equipment may require separate single-pole or dual-pole connections.

Loaded voltage measurements should be used when diagnosing equipment that receives insufficient voltage despite showing normal unloaded voltage.

Heat, Efficiency, and Electrical Loss Management

Clean, properly engaged socket contacts limit resistance and heat. Corrosion, loose terminals, inadequate contact pressure, overloaded circuits, and poor grounds can create voltage loss and localized heating.

Discolored contacts, softened housing material, burned insulation, or a hot socket indicate a fault requiring immediate inspection.

Environmental Sealing and Contamination Protection

The S7 uses a weather-resistant housing with internal wiring sealed against corrosion, chemicals, and severe weather. The stainless-steel swivel structure also resists environmental corrosion.

The exposed socket contacts still require inspection and maintenance. The socket cover should remain closed when the tractor cable is disconnected.

Duty Cycle and Operating Conditions

The S7 is intended for commercial trailers exposed to repeated coupling, tight turning, vibration, rain, snow, dust, road salt, chemical deicers, and temperature changes.

Its swivel and automatic-disconnect features are particularly useful in operations where trailers frequently maneuver through tight yards, loading areas, terminals, and urban locations.

Mounting and Installation

The S7 must be mounted to a structurally suitable area at the front of the trailer. The socket requires sufficient clearance to move through its full side-to-side travel without striking the trailer body or nearby equipment.

The complete S7 System uses an 11-inch by 21-inch galvanized plate with predrilled trailer mounting holes. Phillips specifies an approximate mounting area of 12.25 inches by 24 inches for the complete assembly.

Wiring, Grounding, and Installation Requirements

  • Disconnect tractor and trailer electrical power
  • Confirm the complete S7 part number
  • Use a structurally suitable trailer mounting location
  • Provide clearance for the full swivel range
  • Verify the required mounting area
  • Follow the approved circuit assignments
  • Match circuit breakers to conductor capacity
  • Protect wiring against abrasion and sharp edges
  • Seal applicable connections using approved corrosion protection
  • Test trailer lighting, ABS, and auxiliary circuits after installation
  • Check air-brake connections on complete-system versions

Vehicle and Electrical-System Compatibility

Compatibility depends on trailer construction, mounting space, connector standard, vehicle voltage, circuit arrangement, wiring capacity, breaker requirements, electrical cable length, ABS configuration, and connected auxiliary equipment.

The complete S7 System also requires compatibility with the trailer’s service and emergency air-brake lines and gladhand arrangement.

Socket, Harness, and Air-Line Compatibility

The S7 uses a Phillips QCS2 replaceable socket and must be matched with the correct socket, boot, harness, and replacement kit. PERMALOGIC-equipped versions may require different replacement components.

Complete-system gladhands must match the service and emergency air-line arrangement and remain compatible with the tractor gladhands and trailer air-brake system.

Related Component and System Compatibility

  • Phillips QCS2 replacement sockets
  • Phillips QCS2 ring-terminal replacement kits
  • SAE J560-compatible electrical plugs
  • Phillips QCP-equipped electrical cables
  • Commercial trailer ABS systems
  • Trailer lighting harnesses
  • PERMALOGIC trailer-lighting controls
  • Quick-change circuit breakers
  • Phillips swinging gladhands
  • Commercial trailer service and emergency air lines
  • Tracker-bar and pogo-stick cable supports

Common Applications

  • Dry van trailers
  • Refrigerated trailers
  • Flatbed trailers
  • Tank trailers
  • Container chassis
  • Vocational trailers
  • High-coupling-cycle fleet trailers
  • Terminal and distribution operations
  • Trailers operating in corrosive environments
  • Applications involving frequent tight turns
  • ABS-equipped commercial semitrailers

Advantages

  • Socket follows tractor movement during turns
  • Reduces sideways loading on the electrical cable
  • Automatic disconnect helps limit pull-away damage
  • Replaceable QCS2 socket reduces rewiring
  • Weather-resistant housing
  • Sealed internal wiring
  • Stainless-steel swivel structure
  • Additional interior wiring space
  • Optional quick-change circuit breakers
  • Complete system organizes electrical and air connections
  • Swiveling gladhands reduce air-line kinking
  • May reduce connection-related trailer downtime

Limitations or Considerations

  • Requires adequate trailer mounting space
  • Swivel travel must remain free of obstructions
  • Incorrect cable length can reduce system effectiveness
  • The correct QCS2 replacement components must be used
  • Circuit-breaker ratings must match the wiring
  • The swivel mechanism requires inspection
  • Physical damage can restrict socket movement
  • The system cannot correct poor wiring or grounds elsewhere
  • Complete-system installations require air-line compatibility
  • Different S7 and PERMALOGIC versions may use different parts

Driver and Operator Experience

The driver connects the tractor’s electrical cable to the S7 socket in the same general manner as a conventional seven-way connection. The cable and plug should be fully seated, correctly supported, and free to move with the tractor.

The swiveling socket may visibly follow the tractor during tight turns. After coupling, the driver should inspect trailer lighting, observe ABS indicators, and verify the service and emergency air connections.

Controls, Indicators, and Driver Feedback

The standard S7 has no separate driver control. Driver feedback comes through trailer-light operation, ABS indicators, auxiliary-equipment function, air-pressure behavior, or visible connector movement.

A disconnected cable, lighting failure, ABS warning, leaking gladhand, or restricted swivel should be reported and corrected before the vehicle returns to service.

Common Electrical Tests and Diagnostic Information

  • Visual socket and plug inspection
  • Swivel-movement test
  • Automatic-disconnect inspection
  • Trailer-light operational test
  • ABS power and warning-lamp test
  • Individual circuit voltage testing
  • Loaded voltage-drop testing
  • Ground-circuit voltage-drop testing
  • Circuit-breaker continuity and rating inspection
  • Trailer wiring continuity testing with power disconnected
  • Air-leak testing on complete-system gladhands

Inspection and Wear Points

  • QCS2 socket contacts
  • Socket cover and spring
  • Swivel housing
  • Swivel pivots
  • Automatic-disconnect mechanism
  • Nosebox housing and lid
  • Lid seal
  • Internal conductors and terminals
  • Circuit breakers
  • Mounting fasteners
  • Trailer mounting structure
  • Galvanized mounting plate
  • Service and emergency gladhands
  • Air-line connections and seals

Cooling, Ventilation, and Environmental Requirements

The S7 does not require active cooling. Electrical loading should remain within approved limits to prevent resistance-related heating.

The nosebox should remain closed and sealed against direct road spray, pressure-washing intrusion, standing water, conductive dirt, and chemical contamination.

Component Service Life and Replacement

The replaceable QCS2 socket and circuit breakers are intended to be serviced separately from the complete S7 assembly. Replacement lids and application-specific repair kits are also available.

The swivel housing, nosebox, mounting plate, wiring, and gladhands may remain in service if they are structurally sound, corrosion-free, properly sealed, and operating normally.

Maintenance and Ownership Notes

Maintenance should include both the electrical and mechanical portions of the S7. The socket must remain electrically sound while the swivel must remain free enough to follow tractor movement.

  • Keep the socket cover closed when disconnected
  • Inspect socket contacts and the tractor plug
  • Verify free side-to-side swivel movement
  • Inspect the automatic-disconnect mechanism
  • Check mounting fasteners and trailer structure
  • Inspect internal wiring for pinching or abrasion
  • Maintain approved corrosion protection
  • Replace damaged circuit breakers with the correct rating
  • Inspect swinging gladhands and seals
  • Test electrical and air systems after service

Common Electrical-System Problems

  • Socket will not swivel: Corrosion, physical damage, contamination, overtightened hardware, or interference with nearby equipment may restrict movement.
  • Repeated cable disconnection: Incorrect cable length, poor cable support, excessive articulation, a worn plug, or an automatic-disconnect problem may be responsible.
  • Intermittent trailer lighting: Worn socket contacts, a loose plug, damaged conductors, poor grounds, or internal terminal problems may interrupt circuits.
  • Trailer ABS warning: Loss of continuous power, poor grounding, voltage drop, damaged wiring, or an unrelated ABS fault may activate the warning.
  • Circuit breaker repeatedly trips: A short circuit, overloaded circuit, damaged conductor, incorrect breaker rating, or defective connected equipment may be responsible.
  • Overheated socket: Loose contacts, corrosion, overloading, poor pin engagement, or a damaged tractor plug can generate excessive resistance.
  • Water inside the nosebox: A damaged lid, failed seal, loose fastener, cracked housing, or improperly sealed wire entry may allow moisture intrusion.
  • Air line kinks or leaks: Restricted gladhand movement, incorrect hose routing, damaged seals, or loose fittings may affect complete-system versions.

Safety and Service Precautions

Electrical power and trailer air pressure should be isolated as required before the S7 is opened, removed, or serviced.

  • Disconnect electrical power before opening the nosebox
  • Secure the vehicle against movement
  • Release or isolate air pressure before servicing gladhands
  • Use correctly rated replacement circuit breakers
  • Do not bypass electrical protection
  • Do not place hands near the swivel during vehicle movement
  • Support the electrical cable before testing articulation
  • Replace cracked, burned, or structurally damaged components
  • Test all required lights and ABS functions after service
  • Perform an air-leak test after gladhand service
  • Follow Phillips and vehicle-manufacturer instructions

Identification Information

Identification information may be located on the S7 housing, nosebox, product label, circuit-breaker panel, mounting plate, trailer build records, or replacement-component packaging.

  • Phillips manufacturer name
  • STA-DRY S7 product identification
  • Complete S7 part number
  • Swivel-only or nosebox configuration
  • Circuit-breaker rating
  • PERMALOGIC equipment
  • QCS2 socket number
  • Replacement-kit number
  • Complete-system mounting-plate configuration
  • Gladhand arrangement
  • Trailer manufacturer and vehicle identification number

The replacement assembly should not be identified by appearance alone. Similar S7 configurations may contain different circuit breakers, controllers, lids, wiring, and mounting hardware.

Buying Considerations

  • Determine whether the swivel socket or complete system is required
  • Record the existing S7 part number
  • Confirm available trailer mounting space
  • Verify clearance for 80 degrees of socket movement
  • Choose no circuit breakers, 20-amp breakers, or 30-amp breakers
  • Determine whether PERMALOGIC is required
  • Confirm the QCS2 replacement-socket configuration
  • Inspect the tractor electrical cable and plug
  • Determine whether swinging gladhands are required
  • Verify air-line and gladhand compatibility
  • Check trailer wiring and circuit loads
  • Confirm replacement-parts availability

Variants and Configurations

  • 16-9500 swivel socket without junction box
  • 16-9510 nosebox without circuit breakers
  • 16-9520 nosebox with 20-amp circuit breakers
  • 16-9530 nosebox with 30-amp circuit breakers
  • PERMALOGIC-equipped S7 nosebox
  • PERMALOGIC TC-equipped configuration
  • 16-95140 complete system without circuit breakers
  • 16-95240 complete system with 20-amp circuit breakers
  • 16-95340 complete system with 30-amp circuit breakers
  • Replacement QCS2 socket kits
  • Replacement nosebox lids
  • Replacement circuit breakers

Comparison to Similar Equipment

Compared with a rigid trailer nosebox, the STA-DRY S7 allows the electrical socket to follow tractor movement and provides automatic disconnection under excessive cable tension.

Compared with the Phillips STA-DRY QCS2 Electrical Connection System, the S7 incorporates QCS2 socket technology into a swiveling trailer nosebox. QCS2 alone refers primarily to the replaceable socket and protected harness connection.

Compared with the Phillips QCP Quick-Change Electrical Plug, the S7 is the trailer-side female socket and wire-management system. The QCP is a cable-mounted male plug with a replaceable pin cartridge.

Compared with a standard S7 nosebox, the complete S7 System adds anodized swinging gladhands and a galvanized mounting plate for combined electrical and air-connection management.

Best Fit For

  • Semitrailers exposed to frequent tight turns
  • Trailer fleets experiencing electrical pull-away damage
  • High-coupling-cycle operations
  • Distribution and terminal fleets
  • Trailers operating in wet or corrosive environments
  • Fleets seeking replaceable QCS2 socket technology
  • Applications requiring organized front-trailer wiring
  • Trailers needing optional circuit-breaker protection
  • Fleets combining electrical and air connections on one mounting plate

Related Vehicle and Trailer Types

Related Truck and Trailer Models

Related Electrical System Types

Related Electrical Products

Related Equipment Systems

Related Guides

Regulatory and Compliance Notes

Commercial trailer lighting, ABS, air-brake connections, wiring protection, and electrical circuits are subject to applicable vehicle-safety and inspection requirements.

The S7 must be installed and maintained so required lighting, ABS, and air-brake equipment operates correctly. Circuit assignments, breaker ratings, socket compatibility, and gladhand connections should follow applicable standards and manufacturer instructions.

Real World Operating Notes

The S7 reduces pull-away damage only when the electrical cable has the correct working length and support. A cable that is too short may disconnect during normal turns, while an excessively long cable may drag or become entangled.

The swivel should move freely through its intended range. Paint buildup, collision damage, corrosion, or nearby equipment can restrict movement and transfer cable force back into the trailer structure.

When a pull-away occurs, the socket, plug, cable, swivel, wiring, gladhands, and trailer mounting structure should all be inspected before the trailer returns to service.

Frequently Asked Questions

What is the Phillips STA-DRY S7?

It is a swiveling seven-way trailer electrical socket and nosebox designed to follow tractor movement and reduce connection damage.

How far does the S7 socket swivel?

It swivels 80 degrees side to side, providing 40 degrees of movement in each direction.

What does the automatic disconnect do?

It allows the electrical plug to separate when cable tension becomes excessive, helping reduce damage to the plug, socket, cable, and trailer components.

Does the S7 use a replaceable socket?

Yes. It uses Phillips QCS2 quick-change socket technology for faster socket replacement.

Does every S7 include circuit breakers?

No. Phillips offers configurations without breakers and versions with 20- or 30-amp circuit breakers.

What is included with the complete S7 System?

The complete system combines the S7 nosebox, anodized service and emergency swinging gladhands, and a galvanized mounting plate.

How far do the complete system’s gladhands swivel?

The swinging gladhands can move through 180 degrees to reduce air-line kinking.

Can the S7 prevent every pull-away failure?

No. It is designed to reduce damage, but correct cable length, cable support, maintenance, installation, and driver procedures remain essential.

Can PERMALOGIC be installed with the S7?

Phillips offers application-specific S7 configurations with PERMALOGIC trailer-lighting control technology.

How can the correct replacement parts be identified?

Use the complete S7 part number, breaker rating, PERMALOGIC configuration, QCS2 socket information, mounting arrangement, and trailer build records.

Availability and Where to Find

Phillips STA-DRY S7 swivel sockets, noseboxes, complete connection systems, replacement sockets, circuit breakers, lids, gladhands, and repair components are available through Phillips distributors, commercial-truck dealers, trailer dealers, heavy-duty parts suppliers, and fleet-maintenance providers.

Availability depends on the required nosebox, breaker rating, PERMALOGIC configuration, mounting system, gladhand arrangement, and replacement-component number.

Current product information, technical support, warranty terms, replacement parts, and distributor resources are available through the Phillips Industries website.

Support Trucking Families

Truck Equipment Atlas supports the mission of Grey Cross, a nonprofit dedicated to helping families of truck drivers who lose their lives while on the road. As the site grows, part of its mission is to bring awareness and support to these families.

Podcast or Video Section

Learn More Through Audio and Video

Truck Equipment Atlas will continue expanding with podcast episodes, interviews, and equipment breakdowns to help drivers and fleets better understand trucks and equipment.

Follow the Growth of Truck Equipment Atlas

Truck Equipment Atlas continues to expand with new truck profiles, trailer coverage, diesel engine pages, equipment system resources, manufacturer information, and educational guides.

Visit our Site Updates page to explore recent additions, project milestones, and upcoming resources as we continue building one of the industry’s growing commercial trucking equipment reference libraries.

View the Latest Site Updates: Truck Equipment Atlas Site Updates

Scroll to Top