The Chelsea 878 Series Power Take-Off Assembly, part number 878XGFJP-M5RZ or 878XGFJPM5RZ, is a constant mesh PTO engineered to fit Allison 10-bolt transmissions. The 878 Series builds on the proven 877 Series design with a ductile iron bearing cap rated 117% stronger than gray iron, an O-ring sealing configuration between the housing and bearing cap to improve clamp load and reduce vibration damage, and 80% thicker steel discs in the clutch pack. Nine speed ratios cover both low and high speed applications. Rotatable cast-iron flanges reduce interference clearance issues, and driveline outputs include a positive stop to eliminate oil seal damage from coupling contact. The wet spline lubrication option extends shaft life by 7 to 10 times. A hydraulic hose is included. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Constant mesh design with cast iron housing fits Allison 10-bolt transmissions
Ductile iron bearing cap is 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap improves clamp load and resists vibration damage
Nine speed ratios including low and high speeds
Rotatable cast-iron flanges reduce driveline interference clearance issues
Wet spline lubrication option provides 7 to 10 times greater shaft life; hydraulic hose included
Tech Specs
- Shift Type: Constant Mesh
- Transmission Mounting: Allison 10-Bolt
- Speed Ratios: Nine (includes low and high speeds)
- Bearing Cap Material: Ductile Iron (117% stronger than gray iron)
- Sealing: O-ring configuration between housing and bearing cap
- Lubrication Options: Pressure Lube (P) or Wet Spline (W)
- Continuous Operation: Yes
- Hose: Included
Additional Information
Parts Manual: Chelsea 878 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
