Phillips 3-in-1 Electrical and Air Combo Assembly

Quick Facts

Manufacturer: Phillips Industries
Product Family: 3-in-1 Electrical and Air Combo Assemblies
Product Type: Combined tractor-to-trailer electrical cable and air-line assembly
Included Connections: One seven-way electrical cable, one red emergency air line, and one blue service air line
Assembly Design: Three lines organized together with protective spiral wrap
Electrical Connector Options: QCP, QCMS2 with QCP, WEATHER-TITE PERMAPLUG, M7, or zinc die-cast plugs
Air-Line Type: Heavy-duty rubber air lines
Common Lengths: 12, 15, and 20 feet
Common Electrical Conductor Configuration: One 8-gauge, two 10-gauge, and four 12-gauge conductors on selected ABS assemblies
Cable Support: Hanging clamp or QWIK-CLAMP depending on configuration
Primary Applications: Highway tractors, regional tractors, vocational tractors, semitrailers, and converter dollies
Primary Benefit: Keeps tractor electrical and pneumatic connections organized as a single supported assembly
Production Status: Current product family with standard and premium configurations

Overview

The Phillips 3-in-1 Electrical and Air Combo Assembly combines the three primary tractor-to-trailer connections into one organized unit. The assembly contains a seven-way electrical cable, a red emergency air line, and a blue service air line.

A protective spiral wrap holds the three lines together while allowing the assembly to flex as the tractor turns beneath the trailer. This design reduces loose-line movement and helps prevent individual cables and hoses from becoming tangled, dragged, pinched, or incorrectly supported.

Phillips offers several connection levels. Premium assemblies may use the QCP replaceable electrical-plug cartridge, STA-DRY QCMS2 tractor-side connection, extended trailer-side lead, cable guard, and QWIK-CLAMP support. Standard versions may use WEATHER-TITE PERMAPLUG, M7, or zinc die-cast electrical connectors.

The correct configuration depends on tractor and trailer connector types, required length, ABS wiring needs, air-line fittings, operating temperature, and fleet maintenance preferences.

Key Characteristics

One seven-way electrical cable
One red emergency air line
One blue service air line
Protective spiral-wrapped construction
Organized back-of-cab connection system
Resistance to kinking and abrasion
Chemical- and abrasion-resistant electrical cable jacket
Large air-line grips for easier handling
Tractor-side swivel air fittings
Multiple seven-way electrical plug options
Available in ABS and selected non-ABS configurations
Multiple lengths for different tractor and trailer arrangements
Hanging clamp included with applicable assemblies
Premium configurations include additional cable protection

Major Components

Seven-way electrical cable
Tractor-side electrical connector
Trailer-side electrical connector
Red emergency air line
Blue service air line
Tractor-side swivel air fittings
Trailer-side air-line grips
Spiral protective wrap
Cable-support clamp
QWIK-CLAMP on premium assemblies
Trailer-side electrical cable guard on selected versions
Extended trailer-side lead on premium assemblies
Strain-relief components
Application-specific gladhand or threaded air fittings

Product Type and Construction

The 3-in-1 is a flexible connection assembly installed between the rear of the tractor cab and the front of the semitrailer. The electrical cable and two rubber air lines remain separate functional components but are retained together by the spiral wrap.

The wrap organizes and protects the lines while permitting inspection of the individual components. Heavy-duty rubber air lines provide service- and emergency-brake connections, while the seven-way cable supplies trailer electrical circuits.

Connector construction varies by model. Available electrical ends range from serviceable premium composite connections to conventional molded or reinforced zinc die-cast plugs.

How the Electrical Component or System Works

The seven-way electrical cable transfers power, ground, lighting signals, ABS power, and approved auxiliary circuits between the tractor and trailer. The red air line supplies the trailer emergency or supply circuit, while the blue line carries service-brake control pressure.

The spiral wrap causes the three lines to move as an organized assembly during normal articulation. A properly positioned support clamp carries the weight of the assembly and helps prevent the connectors from supporting the entire load.

Premium QCP and QCMS2 configurations provide serviceable or sealed electrical connections intended to reduce downtime and corrosion-related problems.

Position and Function Within the Vehicle

The assembly is positioned behind the tractor cab and extends to the trailer’s front electrical socket and air-brake gladhands. A tracker bar, pogo stick, spring, or other support normally suspends the assembly above the tractor deck.

Its function is to provide the removable electrical, service-air, and emergency-air connections required between a tractor and semitrailer.

Common Specifications

Number of Combined Lines: Three
Electrical Connection: Seven-way commercial tractor-and-trailer cable
Air Connections: Red emergency line and blue service line
Common ABS Conductor Configuration: One 8-gauge, two 10-gauge, and four 12-gauge conductors
Available Assembly Lengths: 12, 15, and 20 feet depending on model
Electrical Plug Options: QCP, QCMS2 with QCP, WEATHER-TITE PERMAPLUG, M7, and zinc die-cast
Air-Line Material: Heavy-duty rubber
Air-Line Identification: Red for emergency or supply and blue for service control on most configurations
Assembly Protection: Flexible spiral wrap
Standard Support Clamp: Application-specific Phillips hanging clamp
Premium Support Clamp: Phillips QWIK-CLAMP part number 17-181
Typical Electrical-System Voltage: Commercial 12-volt tractor-and-trailer systems
ABS Compatibility: Available in configurations recommended for commercial ABS applications

Operating Capacity and Performance

Electrical capacity depends on the cable conductors, connector type, socket condition, system voltage, circuit protection, and connected trailer loads. Air-system performance depends on hose condition, fitting size, gladhand seals, tractor pressure, and trailer air-system condition.

The combined assembly does not increase the capacity of any individual electrical or pneumatic circuit. Every component must remain within its approved pressure, current, voltage, temperature, and bending limits.

Installation Position and System Function

The assembly should be mounted high enough to prevent contact with the tractor deck while remaining free to extend during turns. Its routing must provide adequate length for both left and right articulation.

The support should carry the assembly near its balance point without crushing the lines, restricting their movement, or concentrating force at the electrical plugs or air fittings.

System Voltage and Electrical Architecture

The seven-way cable is commonly used in North American 12-volt commercial tractor-and-trailer systems. Separate conductors carry ground, lighting, ABS power, and application-specific auxiliary circuits.

The electrical cable does not create or regulate power. It connects the tractor’s electrical system with the trailer wiring and equipment.

Electrical Input, Output, and Power Function

Electrical power and control signals pass from the tractor through the seven-way cable to the trailer socket and 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 verified through the applicable wiring diagram and connector standard.

Air Supply and Brake-Control Function

The red emergency line supplies compressed air to the trailer reservoirs and supports emergency-brake operation. The blue service line carries control pressure created by the tractor’s brake application.

The lines must be connected to their correctly identified gladhands. Reversing, crossing, restricting, or leaking the air lines can prevent normal trailer-brake operation.

Voltage, Current, Pressure, and Load Management

Electrical loads must remain within the capacity of the cable conductors, plug contacts, sockets, tractor wiring, trailer harness, and circuit protection.

Air pressure must remain within the operating limits of the tractor-and-trailer brake system. Hose restrictions, internal deterioration, leaking fittings, and damaged seals can reduce air delivery.

Electrical Connector Options

Phillips offers the 3-in-1 assembly with several seven-way connection designs.

QCP: Replaceable plug cartridge for faster field service
QCMS2 with QCP: Semi-permanent sealed tractor-side connection with a serviceable trailer-side plug
WEATHER-TITE PERMAPLUG: Molded plug with an environmental seal
M7: Molded, corrosion-resistant seven-way plug
Zinc Die-Cast: Reinforced metal plug housing for conventional heavy-duty service

Air-Line and Fitting Design

Most 3-in-1 assemblies use color-coded heavy-duty rubber air lines with large grips to make coupling and uncoupling easier. Tractor-side swivel fittings simplify installation and reduce twisting during connection.

Exact fittings and gladhand arrangements depend on the selected model and whether the assembly is purchased alone or as part of a complete Phillips power-air kit.

Spiral Wrap and Cable-Support Design

The spiral wrap organizes the electrical cable and air lines while allowing them to flex. It also provides protection against abrasion and contact between the individual lines.

Standard assemblies use an application-specific hanging clamp. Premium assemblies use the Phillips 17-181 QWIK-CLAMP, which can be adjusted without tools and attached to a tracker spring or pogo-stick support.

Internal Components and Electrical Design

The electrical cable contains seven insulated conductors enclosed within a protective jacket. Premium plug options may use overmolded internal connections and replaceable exterior contact components.

The electrical portion remains functionally separate from the air lines. Damage to one line should be evaluated carefully because repairs must not compromise the remaining components or spiral wrapping.

Materials and Component Construction

Insulated copper electrical conductors
Chemical- and abrasion-resistant cable jacket
Heavy-duty rubber air lines
Flexible protective spiral wrap
Color-coded rubber grips
Metal air-line swivel fittings
Composite, molded, or zinc die-cast electrical plug housings
Brass electrical contacts
Application-specific strain relief
Non-corrosive cable-support clamp on premium assemblies

Wiring, Terminals, Connectors, and Grounding

The electrical plugs, sockets, cable conductors, trailer harness, tractor wiring, and grounds should be treated as one circuit. A poor ground can create lighting problems, ABS warnings, overheating, or backfeeding between trailer circuits.

Premium overmolded plugs reduce exposed internal connections, but the exterior pins, sockets, cable jacket, and vehicle wiring still require inspection.

Circuit Protection and Pneumatic Safety

Electrical circuits must use the correctly rated fuses or circuit breakers specified by the tractor and trailer manufacturers. Oversized protection can allow wiring or connector damage.

The air lines must be free of leaks, restrictions, cracking, and damaged fittings. Air-brake components should only be serviced after the vehicle is secured and pneumatic pressure is safely controlled.

Controls, Monitoring, and Diagnostics

The assembly contains no independent electronic controls. It transfers signals, electrical power, and pneumatic pressure commanded by the tractor’s lighting, ABS, auxiliary, and brake systems.

Diagnosis may require electrical voltage-drop testing, connector inspection, ABS diagnostics, air-pressure testing, leak detection, and brake-system operational checks.

Electronic Controls and Driver-Assistance Integration

The electrical cable may supply power and ground circuits required by trailer ABS, electronic lighting controls, monitoring devices, and approved auxiliary systems.

Low voltage or an intermittent connection can create ABS warnings, lighting failures, controller resets, and unreliable auxiliary-equipment operation.

Power Demand, Air Demand, and Capacity Management

The seven-way circuit should not be used for electrical loads exceeding the approved capacity of its conductors and connectors. High-current equipment may require a separate charging connection.

The air lines must supply the flow and pressure required by the trailer brake system. Restrictions, leaks, and incorrect fittings can delay reservoir charging or brake response.

Heat, Efficiency, and Pressure-Loss Management

Electrical resistance at damaged contacts creates voltage loss and heat. Loose plugs, corroded pins, overloaded circuits, and poor grounds should be corrected immediately.

Pneumatic pressure loss can result from leaking gladhands, damaged seals, cracked hoses, loose fittings, or internal hose restrictions.

Environmental Sealing and Contamination Protection

Premium QCMS2, QCP, and WEATHER-TITE configurations provide different levels of protection against moisture and road contaminants. Cable jacketing and spiral wrap add resistance to chemicals, abrasion, and weather exposure.

Disconnected plugs and air fittings should remain supported and protected instead of resting on the tractor deck where they can collect water, grease, road salt, and debris.

Duty Cycle and Operating Conditions

The 3-in-1 is designed for commercial vehicles exposed to repeated coupling, vibration, articulation, road spray, chemicals, temperature changes, abrasion, and daily brake and electrical operation.

Service life depends on correct length, cable support, operating environment, tractor-and-trailer geometry, connection frequency, maintenance, and driver handling.

Mounting and Installation

The assembly should be suspended from a properly positioned tracker bar, pogo stick, tender spring, or back-of-cab support. Phillips includes a compatible clamp with designated assemblies.

Both ends must reach their connection points without excessive tension. The assembly should remain above the tractor deck and clear of tires, frame edges, the fifth wheel, exhaust components, and driveline parts.

Wiring, Air-Line, and Installation Requirements

Select the correct assembly length
Confirm ABS or non-ABS electrical requirements
Match both seven-way connection ends
Verify service and emergency air fittings
Install the correct support clamp
Allow sufficient movement for full articulation
Keep the assembly above the tractor deck
Protect the lines against heat and abrasion
Connect red and blue lines to their proper circuits
Test all electrical circuits after installation
Charge and leak-test the trailer air system
Verify normal trailer-brake operation

Vehicle and Electrical-System Compatibility

Compatibility depends on tractor and trailer connector types, cable length, system voltage, conductor sizes, ABS requirements, air-fitting design, line routing, mounting position, and tractor-to-trailer articulation.

A 3-in-1 assembly should not be selected by length alone. Both electrical and pneumatic connections must match the complete vehicle combination.

Tractor, Trailer, and Connector Compatibility

Available plug combinations support standard seven-way sockets, QCS2 boots, QCP-compatible serviceable plugs, QCMS2 tractor-side connections, and conventional molded or zinc die-cast interfaces.

The red and blue air lines must match the tractor and trailer service and emergency connections. Adapter fittings should only be used when approved for the installation.

Related Component and System Compatibility

Commercial seven-way trailer sockets
Phillips QCS2 sockets
Phillips QCP plug cartridges
Phillips QCMS2 connections
Service and emergency gladhands
Tractor and trailer air-brake systems
Trailer ABS systems
Trailer lighting systems
Tracker bars and pogo sticks
QWIK-CLAMP cable supports
Phillips power-air kits

Common Applications

Highway tractors
Regional-haul tractors
Vocational tractors
Day-cab tractors
Dry van trailers
Refrigerated trailers
Flatbed trailers
Tank trailers
Container chassis
Converter dollies
Double-trailer combinations
Commercial fleet tractor-and-trailer combinations

Advantages

Combines three connections into one organized assembly
Reduces tangled and crossing lines
Protective spiral-wrapped design
Good kink and abrasion resistance
Color-coded service and emergency air lines
Multiple electrical connector options
Available in several lengths
Includes an application-specific support clamp
Premium versions offer replaceable electrical components
Extended trailer-side lead reduces connector strain on premium versions
Simplifies replacement of the complete connection assembly
Provides a clean back-of-cab installation

Limitations or Considerations

Damage to one line can affect the complete assembly
The correct overall length is critical
Improper support can damage all three connections
Electrical connector options are not universally interchangeable
Air fittings must match the tractor and trailer
Spiral wrap can hide localized wear between inspection intervals
High-current trailer equipment may require a separate connection
A damaged cable guard or clamp can increase plug strain
Air and electrical diagnostics remain separate procedures
Complete replacement may cost more than replacing one individual line

Driver and Operator Experience

The grouped design gives the driver one organized assembly to position and inspect during trailer coupling. The red and blue air lines remain visually identifiable, while the seven-way electrical connection is routed alongside them.

Drivers should verify that the assembly is supported, neither air line is crossed, both gladhands are sealed, the electrical plug is fully engaged, and sufficient length remains for turning.

Controls, Indicators, and Driver Feedback

The 3-in-1 contains no independent controls. Driver feedback comes through trailer-light operation, ABS indicators, tractor and trailer air-pressure gauges, audible air leaks, and trailer-brake response.

Any lighting failure, ABS warning, slow trailer air charging, visible hose damage, or air leakage should be investigated before operation.

Common Electrical and Pneumatic Tests

Visual inspection of all three lines
Trailer-light operational test
ABS power and warning-lamp test
Electrical voltage-drop testing
Ground-circuit testing
Plug and socket contact inspection
Air-line leak test
Trailer reservoir charging test
Service-brake application test
Emergency-brake function test
Gladhand seal inspection
Full-articulation clearance inspection

Inspection and Wear Points

Electrical plug pins and housings
Electrical cable jacket
Red emergency air line
Blue service air line
Air-line grips
Swivel fittings
Gladhand connections and seals
Spiral wrap
Cable-support clamp
Tracker spring or pogo stick
Trailer-side cable guard
Strain-relief points
Areas contacting the tractor deck or frame
Signs of cracking, kinking, abrasion, heat, corrosion, or leakage

Cooling, Ventilation, and Environmental Requirements

The assembly does not require active cooling. It should be routed away from exhaust heat and other sources that can damage the electrical jacket, rubber air lines, grips, fittings, or spiral wrap.

Disconnected plugs and gladhands should be stored above the deck in a location protected from water, chemicals, grease, and debris.

Component Service Life and Replacement

Assembly life depends on routing, support, articulation, connection frequency, temperature, chemical exposure, abrasion, air pressure, electrical load, and driver handling.

QCP-equipped versions allow the electrical pin cartridge to be replaced separately. QCMS2-equipped versions provide additional tractor-side connection protection. Damage to the main cable, air lines, fittings, or wrap may require complete assembly replacement.

Maintenance and Ownership Notes

The entire assembly should be inspected rather than checking only the electrical plug or air lines. Wear in the support system can allow all three lines to contact the tractor deck.

Inspect all three lines during pre-trip checks
Keep the assembly properly supported
Check for adequate turning clearance
Replace damaged spiral wrap
Inspect electrical plugs and sockets
Maintain approved electrical corrosion protection
Inspect gladhand seals and air fittings
Repair air leaks immediately
Replace damaged support clamps
Test electrical and pneumatic systems after service

Common Electrical and Air-System Problems

Electrical plug corrosion: Moisture, contaminated sockets, damaged seals, or improper plug storage can corrode the contacts.
Intermittent trailer lighting: Worn contacts, a damaged cable, poor grounds, loose plugs, or trailer-harness faults may interrupt electrical circuits.
Trailer ABS warning: Low voltage, poor grounding, connector resistance, cable damage, or an unrelated ABS fault may activate the warning.
Air leakage: Damaged hoses, worn gladhand seals, loose swivel fittings, cracked grips, or improperly connected gladhands may release air.
Slow trailer air charging: Hose restrictions, leaks, crossed lines, tractor air-system problems, or trailer valve faults may delay charging.
Assembly drags on the deck: A broken support spring, incorrect clamp position, excessive length, or damaged mounting hardware may allow contact.
Lines kink during turns: Incorrect assembly length, poor routing, damaged wrap, restricted swivel fittings, or insufficient support may be responsible.
Repeated connector damage: Excessive tension, inadequate lead length, improper support, severe articulation, or a damaged mating connector may overload the assembly.

Safety and Service Precautions

Electrical power and air pressure should be isolated as required before the assembly is disconnected, repaired, or replaced. The vehicle must be secured against movement before brake-system service.

Disconnect electrical power before connector repair
Chock and secure the vehicle
Control air pressure before opening pneumatic connections
Never interchange the service and emergency lines
Do not operate with cracked or leaking hoses
Do not bypass electrical circuit protection
Keep the assembly clear of tires and moving components
Replace heat-damaged electrical connectors
Perform an air-leak test after service
Test trailer lights, ABS, and brakes before operation
Follow Phillips and vehicle-manufacturer instructions

Identification Information

Identification may be located on the electrical cable jacket, product tag, connector housing, packaging, or vehicle maintenance records.

Phillips manufacturer name
Complete assembly part number
Assembly length
Electrical plug configuration
ABS or non-ABS designation
Electrical conductor sizes
Air-line material and colors
Tractor-side connection type
Trailer-side connection type
Support-clamp type
Extended-lead or cable-guard configuration
Tractor and trailer application information

The assembly should not be identified by appearance or length alone. Similar 3-in-1 products can use different plugs, conductors, fittings, support hardware, and electrical ratings.

Buying Considerations

Choose the correct 12-, 15-, or 20-foot length
Confirm ABS or non-ABS wiring requirements
Select the appropriate electrical plugs
Verify QCP or QCMS2 compatibility
Match service and emergency air fittings
Check electrical conductor capacity
Determine whether premium cable protection is required
Verify support-clamp requirements
Check articulation and back-of-cab clearance
Confirm operating-temperature requirements
Inspect tractor and trailer sockets and gladhands
Compare complete-assembly replacement with individual-line repair

Variants and Configurations

12-foot QCP-equipped ABS assembly
15-foot QCP-equipped ABS assembly
20-foot QCP-equipped ABS assembly
12-foot QCMS2 and QCP premium assembly
15-foot QCMS2 and QCP premium assembly
20-foot QCMS2 and QCP premium assembly
WEATHER-TITE PERMAPLUG configuration
M7 molded-plug configuration
Zinc die-cast plug configuration
ABS electrical configuration
Selected non-ABS electrical configuration
Standard hanging-clamp configuration
Premium QWIK-CLAMP configuration
QWIK-CHANGE Power Air Kit configuration

Comparison to Similar Equipment

Compared with three individually supported lines, the Phillips 3-in-1 organizes the electrical cable and two air lines into one spiral-wrapped assembly. Separate lines may provide greater individual replacement flexibility but require more routing and support management.

Compared with the Phillips QCP Quick-Change Electrical Plug, the 3-in-1 is a complete electrical-and-air assembly. QCP is one available serviceable electrical connector used on selected 3-in-1 versions.

Compared with the Phillips STA-DRY QCMS2 Electrical Connection System, the 3-in-1 combines the electrical connection with service and emergency air lines. QCMS2 may be used as the premium tractor-side electrical connection.

Compared with the Phillips 4-in-1 Electrical and Air Combo Assembly, the 3-in-1 does not include a separate high-current liftgate charging cable.

Best Fit For

Highway tractors pulling conventional semitrailers
Regional and distribution fleets
Vehicles requiring organized back-of-cab connections
ABS-equipped tractor-and-trailer combinations
Fleets seeking simplified cable support
Operations exposed to frequent coupling and uncoupling
Vehicles operating in corrosive environments
Fleets wanting serviceable premium electrical connectors
Applications that do not require a separate liftgate charging cable

Related Vehicle and Trailer Types

Highway and Regional Tractors
Dry Van Trailers
Refrigerated Trailers
Flatbed Trailers
Tank Trailers
Container Chassis Trailers
Vocational semitrailers
Converter dollies
Double-trailer combinations

Related Truck and Trailer Models

Related Electrical System Types

Wiring, Connectors & Power Distribution
Truck & Trailer Lighting Systems
Seven-way tractor-and-trailer connections
Trailer ABS electrical connections
Combination electrical and air assemblies
Back-of-cab cable-management systems
Tractor and trailer air-brake connections
Liftgate charging connections

Related Electrical Products

Related Equipment Systems

Electrical Systems
Brake Systems
Fifth Wheels & Coupling Equipment
Telematics & ELD Systems
Safety Systems
Tractor air-brake systems
Trailer air-brake systems
Trailer ABS systems
Trailer lighting systems

Related Guides

Regulatory and Compliance Notes

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

The assembly must be installed and maintained so required electrical and air-brake equipment operates correctly. Damaged, leaking, dragging, improperly supported, or incorrectly connected lines can place the vehicle out of service.

Real World Operating Notes

Assembly length should be selected from the actual tractor and trailer geometry. A cable that appears correct while parked straight may become too short during a sharp turn.

Two correctly positioned support points may provide better control on longer or heavier combination assemblies. The supports should carry the assembly without restricting articulation.

When one component becomes damaged, the surrounding spiral wrap should be opened or repositioned as necessary so the complete length of all three lines can be inspected.

Frequently Asked Questions

What is the Phillips 3-in-1 assembly?

It is a spiral-wrapped assembly combining one seven-way electrical cable with red emergency and blue service air lines.

Why are the three lines wrapped together?

The wrap keeps the lines organized, helps protect them against abrasion, and allows them to be supported as one assembly.

What lengths are available?

Common Phillips configurations are available in 12-, 15-, and 20-foot lengths.

What electrical connectors are available?

Options include QCP, QCMS2 with QCP, WEATHER-TITE PERMAPLUG, M7, and zinc die-cast plugs.

What do the red and blue air lines do?

The red line normally supplies the trailer emergency or reservoir circuit. The blue line carries service-brake control pressure.

Does the assembly work with trailer ABS?

Phillips offers ABS configurations with electrical conductors sized for compatible commercial trailer applications.

Can one damaged line be replaced separately?

Repair possibilities depend on the damaged component and assembly construction. Significant damage to an air line, cable, spiral wrap, or connector may require complete assembly replacement.

What is the difference between a 3-in-1 and a 4-in-1?

A 3-in-1 contains the seven-way electrical cable and two air lines. A 4-in-1 adds a separate high-current cable for equipment such as liftgate battery charging.

Why is correct cable support important?

Correct support keeps the assembly away from the tractor deck and prevents its weight from pulling directly on the electrical plugs and air fittings.

How can the correct assembly be identified?

Use the Phillips part number, length, electrical connector types, conductor sizes, ABS designation, air fittings, support clamp, and tractor-and-trailer configuration.

Availability and Where to Find

Phillips 3-in-1 Electrical and Air Combo Assemblies are available through Phillips distributors, commercial-truck dealers, trailer dealers, heavy-duty parts suppliers, fleet-maintenance providers, and truck-parts retailers.

Availability depends on the required length, electrical connectors, ABS configuration, air fittings, support clamp, cable guard, and premium or standard construction.

Current product information, part-number assistance, service resources, and distributor information are available through the Phillips Industries website.

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