The Chelsea 890CAFJW-B3CK or 890CAFJWB3CK is a 890 Series Power Take-Off assembly engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It uses a Hydraulic PowerShift (hot-shift) engagement and mounts via a 10-bolt pattern with an SAE C outlet flange and SAE C ("XS") output shaft. The one-piece main shaft eliminates input splines between the PTO and the output extension. The clutch sits at the rear of the housing, tucking the gear section tightly against the transmission to maximize pump clearance. Wet Spline output technology extends PTO and pump shaft life under demanding duty cycles. Shaft power reaches 64 HP at 500 RPM and 128 HP at 1,000 RPM. Continuous torque is rated up to 670 ft-lb; intermittent torque is 501+ ft-lb. Call us to confirm proper fit for your specific Allison transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic PowerShift (hot-shift) engagement
SAE C ("XS") output shaft with SAE C outlet flange
One-piece main shaft eliminates input splines for improved durability
Extended shaft design moves pump mounting flange to rear of transmission for better pump clearance
Wet Spline output technology extends PTO and pump shaft life
Continuous torque up to 670 ft-lb; shaft power 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C ("XS") Output
- Lubricant: Wet Spline
- Continuous Torque: 670 ft-lb (check application pages for actual torque ratings)
- Intermittent Torque: 501+ ft-lb
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
Additional Information
