The Chelsea 897 Series Power Take-Off Assembly, part number 897EDFJW-M5XS or 897EDFJWM5XS, is a constant-mesh PTO engineered specifically for Allison 3000 and 4000 Series transmissions. The 10-bolt mounting and extended one-piece main shaft move the pump interface to the rear of the transmission, tucking the housing tightly against the case to maximize clearance between the pump and the frame rail. The SAE C output flange pairs with Wet Spline technology to reduce wear on the pump shaft in demanding, continuous-duty cycles. Continuous torque is rated up to 670 ft-lb (908 Nm); intermittent torque exceeds 501 ft-lb. Output power at 1,000 RPM reaches 128 HP. Common applications include aerial trucks, fire and rescue vehicles, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific Allison transmission configuration.
Features
Fits Allison 3000 and 4000 Series transmissions via 10-bolt mount
Constant-mesh (constant engagement) shift type for smooth, uninterrupted power delivery
SAE C output flange with Wet Spline technology extends pump shaft life in high-demand applications
Continuous-duty torque rating up to 670 ft-lb (908 Nm); intermittent torque 501+ ft-lb
One-piece extended main shaft moves pump interface to the rear of the transmission for improved clearance
Output power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
Tech Specs
- Transmission Application: Allison 3000 and 4000 Series
- Mounting Type: 10-Bolt
- Shift Type: Constant Mesh (Constant Engagement)
- Input Gear Designator: FJ - Allison World Transmissions
- Output Shaft Type: SAE C with Extended Shaft (XS)
- Outlet Flange Type: SAE C
- Lubricant: W - Wet Spline
- Continuous Torque: 670 ft-lb / 908 Nm (see application pages for actual torque ratings)
- Intermittent Torque: 501+ ft-lb / 501+ Nm
- 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
