The Chelsea 897 Series Power Take-Off assembly, part number 897UAFJW-M5XS or 897UAFJWM5XS, is a constant-engagement PTO engineered for Allison 3000 and 4000 Series transmissions. It mounts via a 10-bolt pattern and positions the SAE C output flange at the rear of the transmission, moving the pump interface rearward to improve clearance between the pump and the frame rail. A one-piece main shaft eliminates the intermediate input splines found on extension-style setups. The wet-spline output extends service life on the PTO and pump shaft in demanding duty cycles. Continuous torque capacity reaches 670 ft-lb; intermittent torque is rated above 501 ft-lb. Shaft power output at 1,000 RPM is 128 HP. Typical applications include aerial trucks, fire and rescue vehicles, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Fits Allison 3000 and 4000 Series transmissions via 10-bolt mounting
Constant-engagement (constant mesh) shift type for continuous-duty operation
SAE C output flange with wet-spline technology to extend pump shaft service life
One-piece main shaft design eliminates input splines between PTO and output extension
Pump interface located at the rear of the transmission for improved housing and pump clearance
Continuous torque rated to 670 ft-lb; shaft output reaches 128 HP at 1,000 RPM
Tech Specs
- Transmission Application: Allison 3000 and 4000 Series
- Mounting Type: 10-Bolt
- Shift Type: Constant Engagement (Constant Mesh)
- Input Gear Designator: FJ - Allison World Transmissions
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS - Extended Shaft)
- Lubricant: W - Wet Spline
- Intermittent Torque: 501+ lb-ft, 501+ Nm
- Continuous Torque: 670 lb-ft, 908 Nm (verify actual rating on application pages)
- Output Power: 56+ HP, 51+ kW
- Shaft Power at 500 RPM: 64 HP, 48 kW
- Shaft Power at 1,000 RPM: 128 HP, 95 kW
Additional Information
