The Chelsea 878XCFJP-M3RF or 878XCFJPM3RF is a constant mesh Power Take-Off from the Chelsea 878 Series, designed to mount on Allison and CAT 10-bolt transmissions. The series offers up to 670 lb-ft continuous torque, which Parker Chelsea rates identically for both intermittent and continuous duty cycles - a single unified torque rating. The bearing cap is ductile iron, 117% stronger than 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 lower interference clearance concerns, and driveline outputs include a positive stop to prevent oil seal damage. Nine speed ratios cover low and high ranges. A hydraulic hose is included. Call us to confirm proper fit for your specific application.
Features
Constant mesh design with cast iron housing for Allison and CAT 10-bolt transmissions
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring seal between housing and bearing cap reduces vibration effects and improves clamp load
Single continuous duty torque rating up to 670 lb-ft (908 Nm) per series specification
Nine speed ratios including low and high speeds
Wet Spline Lubrication option extends shaft life 7 to 10 times over standard lubrication
Rotatable cast-iron flanges reduce clearance and interference issues
Hydraulic hose included, no separate order required
Tech Specs
- Shift Type: Constant Mesh
- Mounting: 10-Bolt (Allison and CAT transmissions)
- Continuous Torque (series): 670 lb-ft / 908 Nm
- 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
- Output Flange Options: SAE B Pump Flange, SAE C Pump Flange, DIN 5462, DIN 120, DIN 100, 1410 Series Companion Flange
- Lubrication: Pressure Lube or Wet Spline (option)
- Speed Ratios: Nine (including low and high)
- Continuous Operation: Yes
- Shaft Power (series): 64 HP at 500 RPM, 128 HP at 1000 RPM
- Markets: Snow and Ice, Vacuum, Aerial, Refuse
Additional Information
Parts Manual: Chelsea 878 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
