The Chelsea 877LFFJW-M5TS or 877LFFJWM5TS is a constant mesh Power Take-Off Assembly from the Chelsea 877 Series, designed exclusively for 10-bolt Allison transmission applications. Constant mesh operation makes it well suited for load-sense pump work where disengagement is not required, and the unit is rated for continuous-duty operation with no de-rating needed. The 877 Series offers up to 670 lb-ft continuous torque and eight internal gear ratios, giving a wide range of output speeds. Pressure lubrication is integrated into the housing, simplifying installation. Common application markets include refuse trucks, aerial, snow and ice, and fire and rescue. Call us to confirm proper fit for your specific transmission and installation.
Features
Constant mesh design for continuous-duty applications including load-sense pump work
10-bolt mounting for Allison transmissions
Continuous torque up to 670 lb-ft with no de-rating required for continuous operation
Eight internal gear ratios for wide output speed selection
Pressure lubrication integrated into the housing with a single hose connection
Rotatable output flange options available with Wet Spline Technology to extend PTO and pump shaft service life
Tech Specs
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Shift Type: Constant Mesh
- Continuous Operation: Yes
- Continuous Torque: 670 lb-ft (check application pages for actual torque ratings)
- Output Power: 56+ HP
- Shaft Power: 64 HP (500 RPM), 128 HP (1000 RPM)
- Lubrication: Pressure Lube with Wet Spline option
- Output Shaft Types: 1410 Series Companion Flange, SAE C 1-1/4" 14T Pump Spline, SAE B 7/8" 13T Pump Spline, SAE BB 1" 15T Pump Spline, DIN 100 Flange, DIN 120 Flange, DIN 5462 Pump Spline
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors)
Additional Information
The Chelsea 877 Series is noted as obsolete in Parker's current product line. Buyers sourcing this part for fleet maintenance or replacement applications should call Pro Gear and Transmission to verify availability and confirm the correct fitment for their Allison transmission configuration.Parts Manual: Chelsea 877 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
