The Chelsea 878XCFJW-M5RS or 878XCFJWM5RS is a constant mesh Power Take-Off from the 878 Series, engineered to fit Allison and CAT 10-bolt transmissions. The 878 Series delivers up to 670 lb-ft of continuous torque in the highest-torque-per-package design Chelsea offers in this mounting class. A ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing the damaging vibrational effects of modern engine designs. Rotatable cast-iron flanges reduce interference clearance issues, and driveline outputs include a positive stop to eliminate oil seal damage. The Wet Spline Lubrication option extends shaft life by 7 to 10 times compared to standard configurations. Nine speed ratios cover both low and high speed applications. A hose is included. Call us to confirm proper fit for your specific transmission and application.
Features
Fits Allison and CAT 10-bolt transmission mounting
Constant mesh design with cast iron housing for continuous duty operation
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring seal configuration between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios including low and high speed ranges
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
Positive stop on driveline outputs eliminates oil seal damage from coupling
Hose included - no separate order required
Tech Specs
- Shift Type: Constant Mesh
- Mounting Type: 10-Bolt
- Compatible Transmissions: Allison, CAT
- Continuous Torque Rating: 670 lb-ft (908 Nm) - check application pages for actual torque rating
- Continuous Operation: Yes
- Speeds: Nine speed ratios including low and high
- Lubrication: Pressure Lube or Wet Spline options available
- Output Shaft Types: 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 Types: SAE B Pump Flange, SAE C Pump Flange
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
Additional Information
Parts Manual: Chelsea 878 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
