The Chelsea 890LHFJW-B5AF or 890LHFJWB5AF is a hydraulic PowerShift PTO assembly engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. The 890 Series mounts via a 10-bolt pattern and positions the pump output flange to the rear of the transmission, improving clearance between the PTO and the frame rail. The SAE C output shaft uses a wet-spline interface that reduces friction and extends both PTO and pump shaft service life. Continuous torque rating reaches 670 ft-lb, with intermittent torque capacity starting at 501 ft-lb. Shaft power output is 64 HP at 500 RPM and 128 HP at 1,000 RPM. Common applications include aerial trucks, fire and rescue apparatus, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic PowerShift engagement for on-the-go operation under load
SAE C output shaft with wet-spline technology for extended pump shaft life
Continuous torque rating of 670 ft-lb; intermittent torque rated at 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Rear-positioned pump flange improves clearance between PTO and frame rail
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Output Shaft Type: SAE C (XS) with Wet-Spline
- Outlet Flange Type: SAE C
- Continuous Torque: 670 ft-lb (see application pages for actual ratings)
- Intermittent Torque: 501+ ft-lb
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- Lubricant Interface: Wet Spline
Additional Information
