The Chelsea 890TBFJW-B5AF is a 890 Series Power Take-Off built for Allison 3000 MD and 4000 HD Series transmissions. The 890 Series uses a 10-bolt mounting configuration and positions the SAE C output flange at the rear of the transmission, creating added pump clearance without requiring a separate extension. Shift actuation is hydraulic PowerShift. The output shaft uses Wet Spline Technology, which extends service life on the PTO and pump shaft during demanding duty cycles. Typical applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Pro Gear and Transmission carries this genuine Chelsea part.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions
Hydraulic PowerShift (hot shift) actuation
10-bolt mounting configuration
SAE C output flange positioned at rear of transmission for improved pump clearance
Wet Spline output shaft for extended PTO and pump shaft service life
Single one-piece main shaft - no input splines between PTO and output extension
Tech Specs
- Series: Chelsea 890
- Input Gear Designator: FJ - Allison 3000 MD and 4000 HD Series
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS)
- Lubricant/Output: Wet Spline
- Intermittent Torque Rating: 501+ lb-ft
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
