The Chelsea 897 Series Power Take-Off, part number 897HAFJW-M5XV or 897HAFJWM5XV, is a constant-mesh PTO engineered specifically for Allison 3000 and 4000 Series transmissions. It uses a 10-bolt mounting configuration and an SAE C outlet flange, with a one-piece main shaft that moves the pump mounting interface to the rear of the transmission. That rear-mount geometry lets the housing tuck tightly against the transmission, giving more clearance between the pump and the frame rail. The wet-spline output (W designation) reduces wear on both the PTO shaft and the mating pump shaft in demanding duty cycles. Continuous torque capacity reaches 670 ft-lb; intermittent torque is rated at 501+ ft-lb. Shift type is constant engagement. Typical applications include aerial trucks, fire and rescue vehicles, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific Allison build.
Features
Fits Allison 3000 and 4000 Series transmissions via 10-bolt mount
Constant-mesh (constant engagement) shift type
SAE C outlet flange and SAE C (XS) output shaft
One-piece main shaft relocates pump interface to rear of transmission for improved clearance
Wet-spline output extends PTO and pump shaft life in high-demand applications
Continuous torque rating up to 670 ft-lb; intermittent torque 501+ ft-lb
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
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS Extended Shaft)
- Lubricant/Output: W - Wet Spline
- Continuous Torque: 670 ft-lb / 908 Nm (verify on application pages for actual rating)
- 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 1000 RPM: 128 HP / 95 kW
- Dimensions (H x W x L): 13 x 11.75 x 31.38 in.
Additional Information
