877XFFJW-M5RZ Chelsea 877 Series Power Take-Off

The Chelsea 877 Series Power Take-Off, part number 877XFFJW-M5RZ or 877XFFJWM5RZ, is a 10-bolt constant mesh PTO designed for Allison transmissions. It delivers up to 670 lb-ft continuous torque and 128 HP shaft power at 1,000 RPM. The output shaft is a 1-1/2" 10-spline configuration with a 1410 companion flange. Intermittent torque capacity exceeds 501 lb-ft. Two assembly arrangements are available to maximize installation clearance. Pressure lubrication is integrated into the housing, requiring a single hose connection. This unit is suited for demanding continuous-duty applications including refuse, aerial, snow and ice, fire and rescue, and oil and gas trucks. Call us to confirm proper fit for your application.

Features

10-bolt mounting for Allison transmissions
Constant mesh design supports continuous-duty operation without de-rating
Continuous torque up to 670 lb-ft; shaft power 64 HP at 500 RPM, 128 HP at 1,000 RPM
1-1/2" 10-spline output shaft with 1410 companion flange
Compact housing height reduces clearance issues; two assembly arrangements available
Wet Spline Technology and integrated pressure lube extend PTO and pump shaft service life

Tech Specs

• Mounting Type: 10-Bolt
• Transmission Manufacturer: Allison
• Shift Type: Constant Mesh
• 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 (see application pages for actual ratings)
• 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
• Lubrication: Integrated pressure lube with Wet Spline Technology

Additional Information

Parts manual and diagrams: Chelsea 877 Series PTO parts list with prices