The Chelsea 877 Series Power Take-Off, part number 877XBFJW-M5RY or 877XBFJWM5RY, is a 10-bolt, constant mesh PTO built for Allison transmission applications. The output shaft is a 1-1/2" 10-tooth spline with a 1410 companion flange. Continuous torque is rated at 670 lb-ft (check application pages for actual torque ratings), with intermittent torque capacity exceeding 501 lb-ft. Shaft power is 64 HP at 500 RPM and 128 HP at 1000 RPM. The compact housing reduces clearance issues, rotatable output flanges allow installation flexibility, and Wet Spline Technology helps extend PTO and pump shaft life. Typical applications include refuse trucks, aerial units, snow and ice equipment, and fire and rescue vehicles. Call us to confirm proper fit for your application.
Features
10-bolt mounting for Allison transmission applications
Constant mesh design suits continuous-duty and load-sense pump work
Output shaft: 1-1/2" 10-tooth spline with 1410 companion flange
Continuous torque up to 670 lb-ft; intermittent torque rated 501+ lb-ft
Shaft power: 64 HP at 500 RPM, 128 HP at 1000 RPM
Wet Spline Technology and rotatable output flanges for extended service life and installation flexibility
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
- Intermittent Torque: 501+ lb-ft / 501+ Nm
- Continuous Torque: 670 lb-ft / 908 Nm (check application pages for actual torque ratings)
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 64 HP (500 RPM), 128 HP (1000 RPM) / 48 kW (500 RPM), 95 kW (1000 RPM)
Additional Information
Parts Manual: Chelsea 877 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
