The Chelsea 890 Series Power Take-Off, part number 890HAFJW-D5XS or 890HAFJWD5XS, is a hydraulic PowerShift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It uses a 10-bolt mounting configuration and features an SAE C ("XS") output shaft with Wet Spline Technology to reduce wear on the PTO and pump shaft splines under demanding duty cycles. The one-piece main shaft eliminates the input splines between the PTO body and the output extension, positioning the clutch at the rear so the housing and gear section sit tight against the transmission for improved pump clearance. Continuous-duty torque reaches 670 ft-lb, with shaft power rated at 64 HP at 500 RPM and 128 HP at 1,000 RPM. Typical applications include fire and rescue trucks, aerial trucks, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Hydraulic PowerShift (hot shift) engagement for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting with rear-of-transmission output location for improved pump clearance
SAE C ("XS") output shaft with Wet Spline Technology for extended PTO and pump shaft life
One-piece main shaft design eliminates input splines between PTO body and output extension
Continuous-duty torque rating of 670 ft-lb; shaft power of 64 HP at 500 RPM and 128 HP at 1,000 RPM
Suited for aerial, fire and rescue, refuse, and crane truck applications
Tech Specs
- Transmission Compatibility: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Output Shaft Type: SAE C ("XS")
- Outlet Flange Type: SAE C
- Lubricant: Wet Spline
- Continuous Torque: 670 lb-ft (check application pages for actual torque ratings)
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP at 500 RPM; 128 HP at 1,000 RPM
Additional Information
