The Chelsea 890 Series Power Take-Off, part number 890UEFJW-D5XS or 890UEFJWD5XS, is a hydraulic PowerShift PTO 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 shaft with wet-spline lubrication to extend PTO and pump shaft life under demanding duty cycles. Continuous torque rating reaches 670 lb-ft; intermittent torque is rated at 501+ lb-ft. Shaft power output is 64 HP at 500 RPM and 128 HP at 1,000 RPM. The 890 Series locates the pump output flange at the rear of the transmission, giving improved clearance between the pump and the frame rail. The one-piece main shaft eliminates input splines between the PTO body and the output extension. Common applications include aerial trucks, fire and rescue, 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 pump output location for improved clearance
SAE C ("XS") output shaft with wet-spline lubrication to reduce spline wear
Continuous torque rating: 670 lb-ft; intermittent torque: 501+ lb-ft
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece main shaft design eliminates input splines between PTO body and output extension
Tech Specs
- Transmission Application: Allison 3000 MD Series, Allison 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Output Shaft Type: SAE C ("XS") Output
- Outlet Flange Type: SAE C
- Lubricant: Wet Spline
- Continuous Torque: 670 lb-ft (see application pages for confirmed rating)
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (500 RPM), 128 HP (1,000 RPM); 48 kW (500 RPM), 95 kW (1,000 RPM)
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
