The Chelsea 877 Series Power Take-Off, part number 877XEFJP-M5XV or 877XEFJPM5XV, is a 10-bolt constant mesh PTO designed for Allison transmissions. It delivers continuous torque rated up to 670 lb-ft (check application pages for actual torque ratings) and intermittent torque of 501+ lb-ft. The output shaft is a 1-1/2" 10-tooth spline with a 1410 companion flange. Shaft power is rated at 64 HP at 500 RPM and 128 HP at 1,000 RPM. The compact housing reduces clearance issues, and two assembly arrangements allow rotatable output flanges for maximum installation clearance. Wet Spline Technology is incorporated to extend PTO and pump shaft service life. Suited for demanding continuous-duty applications including refuse trucks, aerial, snow and ice, and fire and rescue. A genuine Chelsea part from Pro Gear and Transmission - call us to confirm proper fit for your application.
Features
10-bolt mounting for Allison transmissions
Constant mesh shift type - no disengagement required for load-sense pump applications
Output shaft: 1-1/2" 10-tooth spline with 1410 series companion flange
Continuous torque up to 670 lb-ft; intermittent torque 501+ lb-ft (verify actual ratings on application pages)
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Compact housing with rotatable output flanges and Wet Spline Technology for extended service life
Tech Specs
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Shift Type: Constant Mesh
- Output Shaft Type: 1-1/2" 10-Tooth Spline with 1410 Companion Flange
- Output Power: 56+ HP, 51+ kW
- Shaft Power: 64 HP (500 RPM), 128 HP (1,000 RPM), 48 kW (500 RPM), 95 kW (1,000 RPM)
- 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 Technology
Additional Information
Parts Manual: Chelsea 877 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
