The Chelsea 878 Series Power Take-Off, part number 878XEQTP-M5XV or 878XEQTPM5XV, is a constant mesh PTO engineered to fit Allison and CAT 10-bolt 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 to reduce interference clearance issues. Nine speed ratios cover both low and high speed applications. The wet spline lubrication option extends shaft service life by 7 to 10 times compared to standard configurations. Hose is included. Call us to confirm proper fit for your transmission and application.
Features
Constant mesh design with cast iron housing fits Allison and CAT 10-bolt transmissions
Ductile iron bearing cap - 117% stronger than gray iron for improved durability
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios including low and high speed ranges
Rotatable cast-iron flanges reduce interference clearance issues
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 Compatibility: Allison and CAT
- 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, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange, DIN 5462 Pump Spline
- Continuous Operation: Yes
- Lubrication: Pressure Lube (P) or Wet Spline (W) options
- Series Torque Capability: Up to 670 lb-ft (check application pages for actual torque rating)
- Speed Ratios: Nine ratios including low and high speeds
Additional Information
Parts Manual: Chelsea 878 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
