The Chelsea 878XGFJW-M5RZ or 878XGFJWM5RZ is a constant-mesh Power Take-Off assembly from the Chelsea 878 Series, engineered to fit Allison and CAT 10-bolt transmissions. The 878 Series delivers up to 670 lb-ft torque in both continuous and intermittent applications - the highest torque rating in its class in the smallest available package. A ductile iron bearing cap provides 117% greater strength versus gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load and reduces vibration damage. Rotatable cast-iron flanges cut clearance interference issues, and a Wet Spline Lubrication option extends shaft life by 7 to 10 times. Nine speed ratios cover low and high speed requirements. The assembly ships with hose included. Call us to confirm proper fit for your specific transmission and application.
The Chelsea 878 Series is suited for snow and ice control, vacuum, aerial, and refuse body applications. This assembly is an evolution of the proven 877 Series design, with an 80% increase in steel disc thickness within the clutch pack to handle the vibration demands of modern engine designs. The 878 Series Owner's Manual (Parker document 267/281/288/871/878 Series) and the 878 Series Parts List (HY25-2871-M1/US) are available from Parker Chelsea for detailed installation and application guidance.
Features
Constant-mesh design with cast iron housing fits Allison and CAT 10-bolt transmissions
Ductile iron bearing cap - 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Rotatable cast-iron flanges reduce interference and clearance issues
Wet Spline Lubrication option extends shaft life 7 to 10 times
Nine speed ratios including low and high speeds; hose included with assembly
Tech Specs
- Shift Type: Constant Mesh
- Transmission Fit: Allison and CAT 10-Bolt
- Continuous Torque: 670 lb-ft (908 Nm) - check application pages for actual torque ratings
- Continuous Operation: Yes
- Output Shaft Options: SAE B (7/8 in. - 13T) Pump Spline, SAE BB (1 in. - 15T) Pump Spline, SAE C (1-1/4 in. - 14T) Pump Spline, DIN 5462 Pump Spline, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange
- Output Flange Options: SAE B Pump Flange, SAE C Pump Flange
- Speed Ratios: Nine (low and high speeds included)
- Lubrication: Pressure Lube (P) or Wet Spline (W) options
- Hose: Included
Additional Information
The Chelsea 878 Series is suited for snow and ice control, vacuum, aerial, and refuse body applications. This assembly is an evolution of the proven 877 Series design, with an 80% increase in steel disc thickness within the clutch pack to handle the vibration demands of modern engine designs. The 878 Series Owner's Manual (Parker document 267/281/288/871/878 Series) and the 878 Series Parts List (HY25-2871-M1/US) are available from Parker Chelsea for detailed installation and application guidance.
Parts Manual: Chelsea 878 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
