The Chelsea 890REFJW-B5AF or 890REFJWB5AF is a hydraulic hot-shift (PowerShift) power take-off from the Chelsea 890 Series, engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It uses a 10-bolt mounting configuration and delivers an SAE C ("XS") output flange with shaft power of 64 HP at 500 RPM and 128 HP at 1,000 RPM. Continuous-duty torque reaches 670 lb-ft. The 890 Series design moves the PTO pump mounting flange to the rear of the transmission, and the one-piece main shaft eliminates the input splines found between a conventional PTO and an output extension. The wet-spline output lubricates the shaft interface to reduce wear in demanding duty cycles. Applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Call us to confirm proper fit for your application.
Features
Hydraulic PowerShift (hot-shift) engagement for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting with an additional rear bracket for support
SAE C ("XS") output flange and shaft
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Continuous-duty torque rating up to 670 lb-ft
Wet-spline output technology lubricates the PTO/pump shaft interface to extend service life
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: Chelsea 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (hot-shift)
- Output Shaft Type: SAE C ("XS") Output
- Outlet Flange Type: SAE C
- Input Gear Designator: FJ - Allison 3000 MD and 4000 HD Series
- Lubricant/Spline Type: Wet Spline
- Shaft Power: 64 HP (500 RPM), 128 HP (1,000 RPM)
- Output Power: 56+ HP, 51+ kW
- Continuous Torque: 670 lb-ft (check application pages for actual torque ratings)
- Intermittent Torque: 501+ lb-ft
Additional Information
