The Chelsea 890 Series Power Take-Off Assembly, part number 890HEFJW-B5XS or 890HEFJWB5XS, is engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. Its one-piece main shaft eliminates the input splines that connect a conventional PTO to a separate output extension, and the clutch sits at the rear of the housing so the gear section tucks tight to the transmission for improved pump clearance. The SAE C output shaft uses Wet Spline technology to reduce wear in demanding duty cycles. Hydraulic PowerShift engagement and a 10-bolt mounting pattern round out the design. At 500 RPM the series delivers 64 HP; at 1,000 RPM it reaches 128 HP, with a continuous torque rating up to 670 lb-ft. Call us to confirm proper fit for your specific Allison application.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic PowerShift (hot shift) engagement
SAE C output shaft with Wet Spline technology for extended pump shaft life
One-piece main shaft design eliminates inter-unit input splines for improved pump clearance
Continuous torque rating up to 670 lb-ft; intermittent torque 501+ lb-ft
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission Compatibility: 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 Wet Spline (XS)
- Continuous Torque: 670 lb-ft (check application pages for actual ratings)
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
- Lubricant: Wet Spline
Additional Information
