Parker Chelsea 442 Series Power Take-Off

Quick Facts

Manufacturer: Parker Hannifin — Chelsea Products Division
Product Series: Chelsea 442 Series
Product Type: Transmission-mounted power take-off
PTO Design: Two-gear mechanical PTO
Transmission Opening: Six-bolt mounting pattern
Housing Material: Cast iron
Maximum Intermittent Torque: Up to 250 lb-ft, depending on ratio
Available Gear Ratios: Twelve ratio codes
Shift Options: Air, electric-over-air, wire, constant-mesh, and application-specific controls
Output Options: Direct-pump and driveline configurations
Approximate Weight: 30 pounds
Primary Applications: Dump trucks, service trucks, aerial equipment, refuse trucks, fire and rescue vehicles, and snow-and-ice equipment

Overview

The Parker Chelsea 442 Series Power Take-Off is a two-gear, six-bolt PTO designed for mechanical and automatic commercial-vehicle transmissions. It transfers power from a compatible transmission gear to a hydraulic pump, driveshaft, or other auxiliary system.

The 442 Series is built around a cast-iron housing and uses tapered bearings to support demanding vocational applications. Its range of input gears, ratios, mounting arrangements, shift systems, and output configurations allows the PTO to be adapted to numerous truck transmissions and powered-equipment requirements.

Parker describes the 442 as an economical workhorse for applications such as dump trucks, aerial devices, refuse equipment, fire and rescue vehicles, service trucks, and snow-removal equipment. Correct selection requires matching the complete PTO model to the transmission, desired output speed, torque requirement, rotation, pump, shift system, and available chassis clearance.

Key Characteristics

Two-gear PTO architecture
Six-bolt transmission mounting pattern
Cast-iron housing
Tapered output-shaft bearings
Tapered input bearings for increased load capability
Up to 250 lb-ft of intermittent torque
Multiple speed ratios
Multiple mechanical, pneumatic, and electro-pneumatic shift options
Direct-pump and driveline outputs
Available 360-degree rotatable pump flanges
Pressure-lubrication option
Standard- and deep-mount arrangements
Serviceable slip-fit idler pin
Adjustable PTO-to-transmission gear backlash

Major Components

Cast-iron PTO housing
Transmission input gear
Idler gear and slip-fit idler pin
Output gear and shaft
Tapered input and output bearings
Shift cover and shift mechanism
Air cylinder, wire control, or constant-mesh components
Output flange or pump-mount adapter
Seals and O-rings
Mounting studs and fasteners
Mounting gaskets
Pressure-lubrication components when equipped
Indicator switch and related wiring when specified
Air lines and control valve on air-shift models

Product Type and Construction

The Chelsea 442 is a transmission-mounted, two-gear PTO. Its input gear meshes with a compatible gear inside the transmission, while the PTO’s internal gearing transfers power to an output shaft.

The cast-iron housing provides strength for vocational use. Parker uses tapered bearings to support the input and output assemblies, helping the PTO withstand the radial and thrust loads associated with hydraulic pumps and auxiliary drivelines.

The 442 Series is offered with several assembly arrangements and mounting depths. These variations help position the shift cover and output around frame rails, exhaust components, transmission features, and other chassis equipment.

How the Power Take-Off Works

The PTO mounts over a six-bolt opening in the transmission case. Its input gear meshes with the transmission’s PTO drive gear. When the PTO is engaged, the shift mechanism connects the rotating gear train to the output shaft.

The output shaft then powers a directly mounted hydraulic pump or transfers power through a driveshaft. Output speed is determined by engine speed, transmission PTO-drive-gear speed, and the selected 442 Series ratio.

Depending on the selected configuration, engagement may be controlled by air pressure, an electric-over-air control, a mechanical wire control, or an application-specific valve arrangement. Constant-mesh versions operate differently and must be integrated according to the equipment design.

Position and Function Within the Vehicle

The 442 Series installs on a compatible six-bolt PTO opening on the vehicle’s transmission. The exact side, depth, orientation, and assembly arrangement depend on the transmission and available chassis clearance.

Its purpose is to provide mechanical power for auxiliary truck equipment, including:

Hydraulic pumps
Dump-body hoists
Aerial devices
Winches
Snowplows and spreaders
Refuse bodies
Service cranes
Fire and rescue pumps
Trailer hydraulic systems
Other transmission-driven accessories

Common Specifications

PTO Type: Two-gear, transmission-mounted power take-off
Mounting Pattern: Six-bolt transmission opening
Housing: Cast iron
Approximate Weight: 30 pounds or 13.6 kilograms
Maximum Published Intermittent Torque: 250 lb-ft or 339 N-m on applicable ratios
Published Ratio Codes: A, B, C, F, H, L, Q, R, S, U, W, and X
Published Intermittent Torque Range: 140 to 250 lb-ft, depending on ratio
Power at 500 Output RPM: Approximately 13 to 24 horsepower, depending on ratio
Power at 1,000 Output RPM: Approximately 27 to 48 horsepower, depending on ratio
Lubrication Options: Transmission splash lubrication or pressure lubrication, depending on specification
Output Styles: Direct-pump mounts and driveline shafts
Mounting Arrangements: Standard, deep-mount, metric-stud, and application-specific configurations

Final specifications must be confirmed using the complete Chelsea model number and Parker’s application information for the vehicle’s exact transmission.

Power, Torque, Speed, and Operating Capacity

The 442 Series is rated for intermittent service. Its published torque capacity varies with the selected internal ratio. Applicable A, B, C, F, H, and L ratios carry the highest published rating of 250 lb-ft.

Other ratios have lower torque limits. Published ratings range from 225 lb-ft for Q and R ratios to 140 lb-ft for the X ratio. The driven equipment must remain within the rating assigned to the complete PTO configuration.

Correct output speed is equally important. A hydraulic pump operated too slowly may not provide adequate flow, while excessive speed can create heat, cavitation, noise, accelerated wear, or pump failure.

Intended Transmission and Mounting Position

The Chelsea 442 Series is intended for compatible mechanical and automatic transmissions with an approved six-bolt PTO opening and matching drive-gear geometry.

Parker offers different input gears, assembly arrangements, standard- and deep-mount versions, and application-specific mounting hardware. The mounting position cannot be selected from the six-bolt pattern alone. The following factors must be verified:

Transmission manufacturer and model
Transmission specification number
PTO opening location
Transmission drive-gear teeth and pitch
Required PTO rotation
Available frame and body clearance
Output-shaft location
Pump size and weight
Shift-cover clearance
Transmission lubrication requirements

PTO Engagement and Shift System

The 442 Series may be configured with air shift, electric-over-air shift, wire shift, constant-mesh operation, or specialized PTO-and-dump-pump control arrangements.

Available shift configurations include:

Air shift with an installation kit
Air shift without an installation kit
12-volt electric-over-air control
Application-specific transmission electronic control
Wire shift with cable and knob
Wire shift without cable and knob
Constant-mesh configuration
PTO-and-dump-pump combination valves

The vehicle must be operated according to the instructions for its exact transmission, PTO, and auxiliary equipment. Engagement requirements may include neutral, a set parking brake, low engine speed, or transmission-specific interlocks.

Power Transfer and Output Design

The 442 Series can transfer power directly to a hydraulic pump or through a driveline output. Parker offers numerous output arrangements to accommodate different pump shafts, flange standards, mounting directions, and equipment layouts.

Available output families include:

SAE A pump mounts
SAE B pump mounts
SAE BB pump mounts
SAE C pump-mount shaft arrangements
DIN 5462 pump mounts
Chelsea cloverleaf pump mounts
Greaseable pump-mount arrangements
Rotatable pump flanges
Keyed straight driveline shafts
Tapered driveline output shafts

The popular rotatable-flange configurations allow the hydraulic pump to be positioned for improved hose routing and chassis clearance. Rotation must still preserve correct lubrication, fastener access, and pump support.

Hydraulic Circuit and Equipment Integration

When the PTO drives a hydraulic pump, the complete hydraulic circuit must be designed around the pump’s displacement, operating speed, pressure rating, flow requirement, and duty cycle.

The system may include:

Hydraulic pump
Reservoir
Suction hose
Pressure and return lines
Directional-control valve
Pressure-relief valve
Return filtration
Hydraulic cylinder or motor
Oil cooler
Temperature and pressure monitoring
PTO and body-control interlocks

The PTO should never be used to compensate for an undersized pump or poorly designed hydraulic circuit. Pump speed, flow, pressure, and PTO torque must be calculated together.

Housing, Shaft, Bearing, and Gear Design

The 442 Series uses a cast-iron housing and a two-gear internal arrangement. Tapered cone bearings support the output shaft, while tapered input bearings provide greater load capability than a basic needle-bearing arrangement.

The slip-fit idler pin is designed to simplify service. Proper bearing condition, gear-tooth contact, backlash, shaft support, and lubrication are essential to the PTO’s service life.

Parker provides multiple assembly arrangements so the output and shift components can be positioned for the transmission and chassis installation.

Controls and Electronic Integration

Air-shift models use compressed air to move the PTO shift mechanism. Electric-over-air versions add an electrical switch or vehicle-control signal that operates the pneumatic valve.

An installation may also include:

PTO engagement switch
Indicator lamp
Transmission-enable circuit
Parking-brake interlock
Neutral-position interlock
Body-control module
Engine-speed control
Remote throttle
PTO confirmation switch
Dump-pump combination control

Control requirements vary significantly between transmissions and completed vehicles. Wiring and pneumatic plumbing should follow the approved diagrams for the exact PTO and chassis.

Efficiency, Heat, and Lubrication

The PTO’s gears and bearings produce heat while transferring power. Correct backlash, lubricant level, transmission-fluid condition, output speed, and loading help control temperature and wear.

Some 442 configurations are available with pressure lubrication. Pressure lubrication directs oil to the PTO rather than relying only on splash lubrication from the transmission. It may be required for certain mounting positions, speeds, duty cycles, or vehicle operating conditions.

Low transmission lubricant, restricted oil flow, incorrect fluid, excessive backlash, insufficient backlash, overspeed, or overload can cause elevated temperatures and premature damage.

Duty Cycle and Operating Conditions

The Chelsea 442 Series carries intermittent-duty ratings. It is intended for equipment that operates for limited periods rather than continuously at maximum load.

Actual suitability depends on:

Required torque
Output speed
Length of each operating cycle
Number of cycles per day
Ambient temperature
Vehicle movement during operation
Hydraulic-system efficiency
Transmission lubrication
Pump weight and overhung load
Shock loading from the driven equipment

Applications requiring extended operation or continuous power should be reviewed with Parker or an authorized Chelsea distributor before the PTO is selected.

Mounting and Installation

Installation requires identifying the approved PTO opening, matching the input gear, removing the transmission cover, checking internal clearance, installing the proper gaskets and hardware, and setting gear backlash to the required specification.

The installer must also confirm:

Correct PTO model and assembly arrangement
Correct transmission input gear
Proper gasket stack
Acceptable gear backlash
Required housing clearance
Correct fastener torque
Proper output rotation
Adequate pump or driveline clearance
Secure air and electrical connections
Correct lubricant level after installation

A heavy direct-mounted pump may require an approved support bracket. Improper support can damage the PTO housing, transmission case, pump mount, or shaft connection.

Transmission and Vehicle Compatibility

The 442 Series is engineered for broad transmission coverage, but it is not universally interchangeable among all six-bolt transmissions. Selection must be based on the exact transmission identification and vehicle installation.

Compatibility depends on:

Transmission manufacturer
Transmission model and specification
PTO-opening location
Drive-gear design
Required input gear
Desired output ratio
Output rotation
Mounting depth
Chassis and exhaust clearance
Vehicle air and electrical systems
Engine-speed-control capability
Completed equipment layout

A PTO should not be selected solely by bolt pattern, physical appearance, or torque rating.

Pump, Driveshaft, and Driven-Equipment Compatibility

The selected output must match the hydraulic pump or driveline it will power. Direct-mounted pumps require compatible flange, pilot, shaft, spline, rotation, and torque specifications.

Driveline installations require correct shaft sizing, universal-joint selection, alignment, guarding, operating angles, and critical-speed analysis. The driven equipment must not impose torque, speed, thrust, or overhung loads beyond the PTO’s rating.

Pump weight and hose loading should also be considered. Heavy pumps and unsupported hoses can apply damaging forces to the PTO output and transmission case.

Hydraulic Fluid, Filtration, and Reservoir Compatibility

The PTO itself normally receives lubrication from the transmission or an approved pressure-lube circuit. The hydraulic pump and powered equipment use a separate hydraulic fluid circuit.

The hydraulic system should use fluid with the viscosity, additive package, and temperature range required by the pump and equipment manufacturers. The reservoir, suction line, filters, breathers, return line, and cooler must support the required flow without causing restriction, aeration, or excessive heat.

Contaminated or overheated hydraulic fluid can damage the pump and increase the torque demand placed on the PTO.

Common Applications

Dump trucks
Dump trailers
Service trucks
Utility trucks
Aerial-lift vehicles
Snowplows
Salt and material spreaders
Refuse trucks
Fire apparatus
Rescue vehicles
Recovery and towing equipment
Hydraulic cranes
Municipal vehicles
Construction trucks
Specialized vocational equipment

Advantages

Broad transmission-application coverage
Durable cast-iron housing
Up to 250 lb-ft of intermittent torque
Numerous internal ratios
Wide selection of pump and driveline outputs
Tapered input and output bearings
Space-saving air-shift-cover options
Available pressure lubrication
Adjustable gear backlash
Serviceable slip-fit idler pin
Rotatable pump-flange options
Multiple shift-control arrangements
Established parts and service support

Limitations or Considerations

Intermittent-duty ratings may not suit continuous-operation equipment
Exact transmission matching is required
Backlash must be checked and adjusted during installation
Incorrect ratio selection can overspeed or underspeed the driven equipment
Heavy pumps may require support brackets
Some installations require pressure lubrication
Air-shift versions require a dependable air supply
Physical clearance varies by assembly arrangement
Torque capacity changes with the selected ratio
Improper engagement can damage PTO and transmission gears
The six-bolt pattern alone does not confirm compatibility
Configuration-specific replacement parts must be correctly identified

Driver and Operator Experience

A correctly selected and installed 442 Series PTO should engage predictably and power the auxiliary equipment without excessive vibration, noise, or heat. The operator may control engagement with an air valve, electrical switch, mechanical control, or integrated body-control system.

Operators should monitor:

PTO engagement confirmation
Engine and PTO operating speed
Unusual gear noise
Hydraulic pressure and temperature
Slow equipment movement
Air or fluid leaks
Unexpected PTO disengagement
Vibration from the pump or driveline
Warning lamps or control-system faults

PTO Engagement and Operating Procedure

The exact engagement procedure depends on the transmission, shift system, vehicle controls, and powered equipment. Operators should follow the Parker instructions and the completed vehicle manufacturer’s procedure.

A typical procedure may require the operator to stop the vehicle, apply the parking brake, place the transmission in the specified range, reduce the engine to idle, activate the PTO control, confirm engagement, and then increase engine speed only as required by the equipment.

The PTO should not be shifted at an engine speed or vehicle condition prohibited by the applicable instructions. Before driving, the operator should confirm that the PTO and body equipment have returned to their required travel positions.

Inspection and Wear Points

PTO housing and mounting surfaces
Mounting studs, nuts, and cap screws
Transmission-to-PTO gasket area
Input, idler, and output gears
Gear backlash
Input and output bearings
Output shaft and splines
Pump flange and pilot
Driveline yoke and universal joints
Shift cylinder or wire-control mechanism
Air lines, fittings, and control valves
Electrical switch, wiring, and indicator lamp
Pressure-lube lines when equipped
Pump support bracket
Hydraulic hoses near the PTO

Lubrication Requirements

The PTO must receive the correct lubricant in the amount and manner required for its transmission position and operating conditions. Standard configurations may depend on lubricant from the transmission, while pressure-lubricated models use a dedicated supply path.

Transmission lubricant level should be rechecked after PTO installation because the added housing can change the total fluid requirement. Any external pressure-lube line should be inspected for leakage, restriction, damage, and correct routing.

Greaseable pump-mount outputs must be serviced according to the instructions for the selected output configuration.

Maintenance and Ownership Notes

Routine maintenance should include checking mounting fasteners, lubricant level, gear noise, output-shaft play, shift operation, air and fluid leakage, electrical connections, pump support, and driveline condition.

New or serviced installations should be rechecked after their initial operating period. Thermal cycling and gasket compression can affect mounting-fastener retention and leakage.

Changes in noise, engagement quality, operating temperature, or hydraulic performance should be investigated promptly. Continuing to operate a damaged PTO can also damage the transmission and driven equipment.

Common PTO and Hydraulic-System Problems

PTO will not engage: Insufficient air pressure, a damaged control valve, electrical failure, incorrect interlock status, a binding shift mechanism, or internal damage may prevent engagement.
PTO will not disengage: Trapped air pressure, a sticking valve, damaged shift components, incorrect linkage adjustment, or internal gear damage may keep the PTO engaged.
Gear noise: Incorrect backlash, mismatched input gearing, worn bearings, damaged gear teeth, insufficient lubrication, or incorrect installation may cause abnormal noise.
Oil leakage: Damaged gaskets, loose fasteners, worn seals, excessive internal pressure, or damaged mounting surfaces can allow leakage.
Overheating: Excessive speed, overloading, low lubricant, restricted pressure lubrication, hydraulic-system inefficiency, or continuous operation beyond the PTO’s duty rating may create heat.
Slow hydraulic operation: Incorrect PTO ratio, low engine speed, worn pump components, suction restriction, low fluid level, internal leakage, or an undersized pump may reduce system performance.
Output-spline wear: Misalignment, inadequate lubrication, pump movement, an unsupported pump, or incompatible shaft geometry may accelerate spline wear.
PTO housing or transmission-case damage: Excessive pump weight, missing support brackets, driveline misalignment, impact damage, or incorrect fastener installation may overload the mounting structure.

Safety and Service Precautions

Before servicing the PTO or powered equipment, shut down the engine, secure the vehicle, relieve hydraulic and pneumatic pressure, disconnect energy sources when required, and prevent the equipment from moving.

Never work beneath an unsupported dump body, hoist, aerial device, or other hydraulically raised equipment. Use the manufacturer’s approved mechanical body prop or blocking procedure.

Rotating PTO shafts and auxiliary drivelines must be properly guarded. Clothing, tools, hands, and other objects must be kept away from rotating components.

PTO installation, internal inspection, backlash adjustment, and transmission work should be completed by qualified personnel using the instructions for the exact Chelsea and transmission models.

Identification Information

The complete Chelsea model number identifies the PTO series, gear ratio, input gear, shift system, mounting arrangement, lubrication option, assembly arrangement, and output configuration.

Record the following information before ordering a PTO or replacement parts:

Complete Chelsea PTO model number
PTO serial or production information
Vehicle identification number
Truck manufacturer and model
Transmission manufacturer
Complete transmission model and specification number
PTO-opening location
Gear-ratio code
Input-gear designation
Shift option
Lubrication option
Assembly arrangement
Output option
Hydraulic-pump model
Driven-equipment requirements

Do not identify a replacement PTO by appearance or the 442 Series number alone.

Buying Considerations

Verify the exact transmission model and specification
Confirm the approved six-bolt PTO opening
Determine the required output speed
Calculate operating and peak torque
Confirm the intermittent-duty cycle is suitable
Select the correct input gear
Choose the correct output rotation
Match the pump flange and shaft
Select the shift-control system
Determine whether pressure lubrication is required
Check frame, exhaust, and body clearance
Evaluate direct-mounted pump weight
Confirm whether a pump support bracket is required
Include the correct installation kit
Confirm parts and service availability
Use an authorized PTO installer or vocational-equipment specialist

Variants and Configurations

Twelve published internal ratio codes
Multiple input gears
Standard-mount configurations
Deep-mount configurations
Metric-stud mounting arrangements
Multiple assembly orientations
Air-shift models
Electric-over-air models
Wire-shift models
Constant-mesh models
PTO-and-dump-pump control packages
Pressure-lubricated models
Non-pressure-lubricated models
SAE pump mounts
DIN pump mounts
Chelsea cloverleaf outputs
Greaseable pump outputs
Rotatable pump flanges
Straight and tapered driveline outputs

Comparison to Similar Equipment

Compared with the Parker Chelsea 489 Series Power Take-Off, the 442 uses a different housing and installation architecture. Parker designed the one-piece 489 Series to reduce mounting time and potential leak paths while providing similar torque capacity.

Compared with the Parker Chelsea 280 Series Power Take-Off, the 442 is a six-bolt intermittent-duty PTO offered for broad mechanical and automatic transmission coverage. The 280 is a ten-bolt constant-mesh PTO intended for different transmissions and continuous-duty requirements.

Compared with the Muncie TG Series PTO, both product families support a wide range of vocational applications. Their input gears, ratios, controls, outputs, mounting arrangements, and model-number systems are manufacturer-specific and should not be treated as interchangeable.

Best Fit For

Trucks with an approved six-bolt transmission PTO opening
Intermittent-duty hydraulic applications
Dump trucks and dump trailers
Aerial and utility equipment
Snow-and-ice-control vehicles
Service trucks
Refuse vehicles
Fire and rescue apparatus
Applications requiring multiple ratio choices
Installations needing a rotatable pump flange
Fleets requiring an established serviceable mechanical PTO

Related Vehicle and Trailer Types

Related Truck and Trailer Models

Related PTO and Hydraulic System Types

Related PTO and Hydraulic Products

Related Equipment Systems

Related Guides

Regulatory and Compliance Notes

PTO and hydraulic installations must preserve the vehicle’s braking, steering, electrical, emissions, exhaust, fuel, driveline, and structural integrity. Equipment installation must not exceed the vehicle’s axle, tire, wheel, frame, or gross vehicle weight ratings.

Hydraulic hoses, rotating shafts, raised bodies, outriggers, cranes, aerial devices, and other powered equipment may be subject to workplace-safety, guarding, inspection, and operating requirements.

The final-stage manufacturer or equipment installer is responsible for ensuring that the completed vehicle complies with applicable regulations and certification requirements.

Real World Operating Notes

A PTO ratio should be selected from the speed required at the pump or driven equipment—not simply from the highest available torque rating. Proper engine speed and PTO ratio allow the equipment to reach the required hydraulic flow without overspeeding the pump.

Backlash is a critical installation measurement. Excessive backlash can create gear noise and impact loading, while insufficient backlash can cause overheating, binding, and gear damage.

Direct-mounted pumps should not be allowed to hang from the PTO when their weight or operating forces exceed the approved limit. A correctly designed support bracket can prevent housing, flange, and transmission-case failures.

Slow hydraulic operation is not always a PTO failure. Engine speed, pump displacement, fluid level, suction restriction, relief-valve setting, cylinder leakage, and hydraulic temperature should also be checked.

Frequently Asked Questions

What is the Parker Chelsea 442 Series PTO?

It is a two-gear, six-bolt power take-off that transfers power from a compatible truck transmission to a hydraulic pump, driveshaft, or other auxiliary system.

Is the Chelsea 442 a mechanical or hydraulic-shift PTO?

The 442 is a mechanically geared PTO offered with several engagement systems, including air shift, electric-over-air control, wire shift, and constant-mesh configurations.

How much torque can the 442 Series handle?

The highest published intermittent rating is 250 lb-ft. The actual rating ranges from 140 to 250 lb-ft depending on the selected internal ratio.

Is the 442 Series rated for continuous operation?

The published 442 Series ratings are for intermittent service. Applications requiring continuous power should be evaluated for a PTO designed and rated for that duty cycle.

Can the PTO directly drive a hydraulic pump?

Yes. The 442 Series is available with multiple direct-pump outputs, including SAE, DIN, Chelsea cloverleaf, greaseable, and rotatable-flange arrangements.

Can the 442 Series use a driveline output?

Yes. Straight keyed and tapered shaft outputs are available for compatible auxiliary-driveline applications.

Does every six-bolt transmission accept the same 442 PTO?

No. The input gear, ratio, rotation, mounting depth, assembly arrangement, controls, and output must match the exact transmission and equipment application.

Why is PTO backlash important?

Backlash provides operating clearance between the transmission drive gear and PTO input gear. Incorrect clearance can cause noise, heat, accelerated wear, or gear failure.

When is pressure lubrication needed?

Pressure lubrication may be required by the mounting position, transmission design, operating speed, duty cycle, or Parker application instructions. The requirement must be checked for the exact installation.

How is the correct replacement PTO identified?

Use the complete Chelsea model number, transmission model and specification, vehicle information, shift system, output type, ratio, and driven-equipment requirements.

Availability and Where to Find

Parker Chelsea 442 Series PTOs, installation kits, shift controls, output components, service parts, and rebuild components may be available through Parker Chelsea distributors, commercial-truck dealers, hydraulic-equipment suppliers, body builders, and vocational-truck equipment installers.

Availability depends on the required input gear, ratio, shift option, lubrication system, mounting arrangement, assembly position, and output configuration. Buyers should supply the complete transmission and application information before ordering.

Current product information, application assistance, technical literature, and distributor resources are available through the Parker Chelsea website.

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