The Chelsea 877XCFJW-M5RY or 877XCFJWM5RY is a constant mesh power take-off from the Chelsea 877 Series, designed for 10-bolt Allison transmission applications with high torque and demanding continuous-duty workloads. The output shaft is a 1-1/2" 10-spline with a 1410 companion flange. Shaft power ratings are 64 HP at 500 RPM and 128 HP at 1,000 RPM. Continuous torque is rated up to 670 lb-ft (verify your specific application against Chelsea application pages). Intermittent torque capacity exceeds 501 lb-ft. The compact housing is built around two assembly arrangements to help clear tight installation spaces. Wet Spline Technology is integrated to extend PTO and pump shaft service life. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
The 877 Series is noted within the Chelsea lineup for power density in a compact envelope. Two assembly arrangements accommodate tight engine compartment installations. Pressure lubrication is integrated into the PTO housing and requires only one hose, which is included with the unit. Eight internal gear ratios are available across the 877 Series to match a broad range of application speed requirements. Common markets include aerial, refuse, snow and ice, and defense truck applications.
Features
10-bolt mounting for Allison transmissions
Constant mesh shift type - no disengagement required, suited for load-sense pump applications
Output shaft: 1-1/2" 10-spline with 1410 companion flange
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Continuous torque up to 670 lb-ft (confirm via Chelsea application pages for your specific installation)
Rotatable output flanges and compact housing height reduce installation clearance issues
Wet Spline Technology helps extend PTO and pump shaft life
Tech Specs
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Shift Type: Constant Mesh
- Output Shaft Type: 1410 Companion Flange, 1-1/2" 10-Spline
- 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 for your installation)
Additional Information
The 877 Series is noted within the Chelsea lineup for power density in a compact envelope. Two assembly arrangements accommodate tight engine compartment installations. Pressure lubrication is integrated into the PTO housing and requires only one hose, which is included with the unit. Eight internal gear ratios are available across the 877 Series to match a broad range of application speed requirements. Common markets include aerial, refuse, snow and ice, and defense truck applications.
Parts Manual: Chelsea 877 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
