The Chelsea 877 Series Power Take-Off, part number 877XFFJP-M5RS or 877XFFJPM5RS, is a constant-mesh, 10-bolt PTO designed for Allison transmissions with demanding, continuous-duty workloads. The output shaft is a 1-1/2" 10-spline configuration with a 1410 companion flange. Continuous torque is rated up to 670 lb-ft (check application pages for actual torque ratings for your specific installation). Shaft power output reaches 128 HP at 1,000 RPM and 64 HP at 500 RPM. The compact housing reduces clearance conflicts, and rotatable output flanges give additional installation flexibility. Wet Spline Technology helps extend both PTO and pump shaft service life. Common 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 shift type, rated for continuous operation without de-rating
Output shaft: 1-1/2" 10-spline with 1410 companion flange
Continuous torque up to 670 lb-ft (verify actual rating on application pages)
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Wet Spline Technology and rotatable output flanges for extended service life and installation flexibility
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Constant Mesh
- Transmission Manufacturer: Allison
- Output Shaft Type: 1-1/2" 10-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 at 500 RPM, 128 HP at 1,000 RPM / 48 kW at 500 RPM, 95 kW at 1,000 RPM
- 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.
