The Chelsea 890EFFJW-B5AF is a hydraulic PowerShift Power Take-Off from the Chelsea 890 Series, engineered specifically for Allison 3000 and 4000 Series transmissions. The 890 Series moves the PTO pump mounting flange to the rear of the transmission, improving pump clearance without requiring a separate extension unit. The main shaft is a single one-piece design, eliminating input splines between the PTO and the output. Mounting is via a 10-bolt pattern, and the output flange is SAE C type with Wet Spline technology to extend pump shaft life under demanding duty cycles. This unit is suited for aerial trucks, fire and rescue, refuse, and crane applications. Available from Pro Gear and Transmission.
Features
Fits Allison 3000 (MD) and 4000 (HD) Series transmissions
Hydraulic PowerShift (hot shift) operation
10-bolt mounting pattern
SAE C output flange with SAE C (XS) output shaft
Wet Spline output extends PTO and pump shaft life in demanding conditions
Single one-piece main shaft eliminates input splines between PTO and output extension
Tech Specs
- Series: Chelsea 890
- Transmission Fit: Allison 3000 (MD) and 4000 (HD) Series
- Shift Type: Hydraulic PowerShift
- Mounting Type: 10-Bolt
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS)
- Lubricant/Output: Wet Spline
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
