The Chelsea 877LFFJW-M3TS or 877LFFJWM3TS is a Power Take-Off assembly from the Chelsea 877 Series, designed for 10-bolt transmission mounting on Allison transmissions. The 877 Series operates on a constant mesh design, meaning it stays engaged continuously without needing to disengage, making it well suited for load-sense pump applications. Output options within this series include SAE B and SAE C pump flanges, ISO 7652 pump flange, and driveline configurations. The series supports continuous operation and intermittent torque ratings above 501 lb-ft, with continuous torque up to 670 lb-ft depending on the specific application. Pressure lubrication is integrated into the housing. Typical applications include refuse trucks, aerial equipment, snow and ice vehicles, fire and rescue, and oil and gas. Call us to confirm proper fit for your specific transmission and chassis.
Features
Chelsea 877 Series Power Take-Off assembly, part number 877LFFJW-M3TS or 877LFFJWM3TS
Constant mesh design for continuous operation without disengagement
10-bolt mounting, engineered for Allison transmissions
Output options include SAE B, SAE C, and ISO 7652 pump flanges plus driveline
Intermittent torque above 501 lb-ft; continuous torque up to 670 lb-ft (verify by application)
Pressure lubrication integrated into the PTO housing
Tech Specs
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Shift Type: Constant Mesh
- Output Type: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Type: 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
- Intermittent Torque: 501+ lb-ft / 501+ Nm
- Continuous Torque: up to 670 lb-ft / 908 Nm (verify by application)
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Output Power: 56+ HP / 51+ kW
- Lubricant: Pressure Lube (P), Wet Spline (W)
- Continuous Operation: Yes
- Typical Applications: Refuse Trucks, Aerial Equipment, Snow and Ice, Fire and Rescue, Oil and Gas, Defense
Additional Information
Parts Manual: Chelsea 877 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
