The Chelsea 878XFFJW-M5RY or 878XFFJWM5RY is a constant mesh Power Take-Off from the 878 Series, engineered for Allison and CAT 10-bolt transmissions. The series delivers up to 670 lb-ft continuous torque in its class - the highest torque capability in the smallest package available in this mounting configuration. 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 common with modern engine designs. Nine speed ratios cover both low and high speed applications. Rotatable cast-iron flanges reduce interference clearance issues, and the Positive Stop feature on driveline outputs eliminates oil seal damage from coupling. Hose is included. Genuine Chelsea from Pro Gear and Transmission - call us to confirm proper fit for your application.
Features
Constant mesh design with cast iron housing for Allison and CAT 10-bolt transmissions
Ductile iron bearing cap - 117% stronger than gray iron
O-ring sealing configuration reduces vibrational effects and improves clamp load
Nine speed ratios including low and high speed options
Positive Stop on driveline outputs eliminates oil seal damage from coupling
Wet Spline Lubrication option provides 7 to 10 times greater shaft life; hose included
Tech Specs
- Series: Chelsea 878 Series Power Take-Off
- Part Number: 878XFFJW-M5RY or 878XFFJWM5RY
- Shift Type: Constant Mesh
- Mounting Type: 10-Bolt
- Transmission Compatibility: Allison and CAT 10-bolt transmissions
- Continuous Torque: up to 670 lb-ft (908 Nm) - check application pages for actual torque ratings
- Speed Ratios: Nine, including low and high speeds
- 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
- Lubrication: Pressure Lube (P) or Wet Spline (W) options
- Continuous Operation: Yes
- 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.
