The Chelsea 877LDFJW-M5TS or 877LDFJWM5TS is a power take-off assembly from the Chelsea 877 Series, designed for Allison transmissions with a 10-bolt mounting configuration. This constant-mesh PTO is built for applications that do not require disengagement, such as load-sense hydraulic pump setups. The 877 Series supports continuous operation and offers multiple output configurations including SAE B pump flange, SAE C pump flange, and ISO 7652 pump flange. Pressure lubrication is integrated into the housing, requiring a single hose connection. Wet Spline Technology is included to extend PTO and pump shaft service life. Typical applications include refuse trucks, aerial equipment, snow and ice control, and fire and rescue vehicles. Call us to confirm proper fit for your application.
Note: Parker Chelsea lists the 877 Series as obsolete. If you need help sourcing this part or identifying a current replacement, give us a call.
Features
Chelsea 877 Series PTO Assembly, part number 877LDFJW-M5TS or 877LDFJWM5TS
Constant-mesh design for continuous-duty applications using load-sense pumps
10-bolt mounting for Allison transmissions
Output options include SAE B, SAE C, and ISO 7652 pump flanges
Integrated pressure lubrication with single-hose installation
Wet Spline Technology for extended PTO and pump shaft life
Suited for refuse, aerial, snow and ice, and fire and rescue truck applications
Tech Specs
- Transmission Manufacturer: Allison
- Mounting Type: 10-Bolt
- Shift Type: Constant Mesh
- Output Type: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options: SAE C (1-1/4 in. - 14T) Pump Spline, SAE B (7/8 in. - 13T) Pump Spline, SAE BB (1 in. - 15T) Pump Spline, 1410 Series Companion Flange, DIN 100 Flange, DIN 120 Flange, DIN 5462 Pump Spline
- Lubrication: Pressure lube integrated into housing, wet spline
- Continuous Operation: Yes
- Intermittent Torque: 501+ lb-ft
- Continuous Torque: Up to 670 lb-ft (see application pages for actual ratings)
- Output Power: 56+ HP
- Series Status: Obsolete per Parker Chelsea
Additional Information
The Chelsea 877 Series is rated for demanding, high-torque continuous-duty work. Eight internal gear ratios provide a wide range of output speeds. Rotatable direct-mount pump flange options help maximize installation clearance in tight engine compartments. The compact housing height further reduces clearance concerns. Markets served include on-highway, aerial, defense, and other mobile equipment. Common truck applications: refuse trucks, pumper cleaners, snow and ice vehicles, oil and gas equipment, and fire and rescue trucks.Note: Parker Chelsea lists the 877 Series as obsolete. If you need help sourcing this part or identifying a current replacement, give us a call.
Parts Manual: Chelsea 877 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
