The Chelsea 877 Series Power Take-Off, part number 877XAFJW-M3RY or 877XAFJWM3RY, is a constant mesh PTO built for 10-bolt Allison transmission applications with demanding, continuous-duty workloads. Output is via a 1410 companion flange paired with a 1-1/2" 10-tooth spline, delivering shaft power of 64 HP at 500 RPM and 128 HP at 1,000 RPM. Continuous torque reaches 670 lb-ft (check application pages for actual torque ratings for your specific installation). Compact housing height eases clearance challenges, and rotatable output flanges give additional installation flexibility. Wet Spline Technology helps extend the service life of both the PTO and the connected pump shaft. Typical applications include refuse trucks, snow and ice equipment, aerial units, and fire and rescue vehicles. Call us to confirm proper fit for your application.
Features
10-bolt mounting for Allison transmission applications
Constant mesh shift type, suited for continuous-duty use with load-sense pumps
Output shaft: 1410 companion flange with 1-1/2" 10-tooth spline
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Continuous torque up to 670 lb-ft (verify rating on application pages for your install)
Wet Spline Technology and rotatable output flanges for extended service life and clearance flexibility
Tech Specs
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Shift Type: Constant Mesh
- Output Shaft Type: 1410 Companion Flange, 1-1/2" 10-Tooth Spline with 1410 Flange
- Shaft Power: 64 HP (500 RPM), 128 HP (1,000 RPM), 48 kW (500 RPM), 95 kW (1,000 RPM)
- Output Power: 56+ HP, 51+ kW
- Intermittent Torque: 501+ lb-ft, 501+ Nm
- Continuous Torque: 670 lb-ft, 908 Nm (check application pages for actual torque ratings)
- Lubrication: Pressure Lube with Wet Spline
Additional Information
Parts Manual: Chelsea 877 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
