Description
The Chelsea 878 Series Power Take-Off, part number 878XFFJP-M5RS or 878XFFJPM5RS, is a constant mesh PTO engineered for Allison and CAT 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 for improved clamp load, and an 80% increase in steel disc thickness within the clutch pack. The series carries a 670 lb-ft continuous duty torque rating. Nine speed ratios cover both low and high speed applications. Rotatable cast-iron flanges reduce interference clearance issues, and a Wet Spline Lubrication option extends shaft life by 7 to 10 times. The hose is included. Call us to confirm proper fit for your application.
Features
Ductile iron bearing cap, 117% stronger than gray iron, reduces vibration damage
O-ring sealing configuration between housing and bearing cap improves clamp load
Single continuous duty torque rating of 670 lb-ft, rated for continuous operation
Nine speed ratios available, including low and high speed ranges
Rotatable cast-iron flanges reduce interference and clearance issues
Wet Spline Lubrication option extends shaft life 7 to 10 times; hose included
Tech Specs
- Shift Type: Constant Mesh
- Mounting Type: 10-Bolt (Allison and CAT transmissions)
- Continuous Torque Rating: 670 lb-ft (908 Nm) – check application pages for actual torque ratings
- Speed Ratios: Nine ratios, including low and high speeds
- Bearing Cap Material: Ductile iron
- Housing Material: Cast iron
- Lubrication: Pressure lube or Wet Spline option
- 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.
