878XFFJW-M5RZ Chelsea PTO Assembly

The Chelsea 878 Series Power Take-Off Assembly, part number 878XFFJW-M5RZ or 878XFFJWM5RZ, is a constant mesh PTO built for 10-bolt Allison and CAT transmissions. The 878 Series improves 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 better clamp load, and rotatable cast-iron flanges that reduce interference clearance issues. Nine speed ratios cover both low and high speed applications. Wet spline lubrication is available as an option, extending shaft life 7 to 10 times compared to standard configurations. A hose is included. Common markets include refuse, vacuum, aerial, and snow-and-ice equipment. Call us to confirm proper fit for your specific transmission and application.

Features

Constant mesh design with cast iron housing for continuous-duty operation
Ductile iron bearing cap - 117% stronger than gray iron predecessor
O-ring seal between housing and bearing cap improves clamp load and resists vibration
Rotatable cast-iron flanges reduce interference clearance issues
Nine speed ratios available, including low and high speeds
Wet spline lubrication option provides 7 to 10 times greater shaft life; hose included

Tech Specs

• Shift Type: Constant Mesh
• Mounting Type: 10-Bolt
• Transmission Fitment: Allison and CAT 10-bolt transmissions
• Continuous Torque: Up to 670 lb-ft (908 Nm) - check application pages for actual torque rating
• Speed Ratios: Nine, including low and high speeds
• Lubrication: Pressure lube or wet spline options
• 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, DIN 5462 pump spline, 1410 Series companion flange, DIN 120 flange, DIN 100 flange
• Output Flange Options: SAE B pump flange, SAE C pump flange
• Continuous Operation: Yes

Additional Information

Parts manual and diagrams: Chelsea 878 Series PTO parts list with prices