The Chelsea 892 Series Power Take-Off, part number 892CEFJW-B3CF or 892CEFJWB3CF, is a hydraulic hot-shift PTO engineered for Allison 3000 MD and 4000 HD Series transmissions, including the Allison 4700. It mounts via a 10-bolt pattern with an additional rear bracket for support, positioning the SAE C output flange at the rear of the transmission to create clearance between the pump and the frame rail. Continuous-duty torque reaches up to 670 ft-lbs; intermittent torque is rated at 501+ lb-ft. Shaft power output is 64 HP at 500 RPM and 128 HP at 1,000 RPM. The wet-spline output shaft protects spline engagement under demanding duty cycles. The one-piece main shaft eliminates intermediate input splines, and the clutch locates at the rear of the housing so the gear section sits tight against the transmission. Common applications include aerial trucks, fire and rescue, refuse, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
10-Bolt mounting with rear support bracket for secure installation on Allison 3000 MD and 4000 HD Series transmissions
Hydraulic PowerShift (hot-shift) engagement
SAE C outlet flange with wet-spline output shaft to extend PTO and pump shaft life in demanding conditions
Continuous-duty torque rating up to 670 ft-lbs; intermittent torque rated at 501+ lb-ft
Shaft power output: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece main shaft eliminates input splines between PTO and output extension, improving drivetrain integrity
Tech Specs
- Product Series: 892
- Transmission Fitment: Allison 3000 MD and 4000 HD Series (including Allison 4700)
- Mounting Type: 10-Bolt (with additional rear support bracket)
- Shift Type: Hydraulic PowerShift (hot-shift)
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS) Wet Spline
- Continuous Torque: Up to 670 ft-lbs / 908 Nm (verify on application pages for actual rating)
- Intermittent Torque: 501+ lb-ft / 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
- Lubricant: Wet Spline
Additional Information
Parts manual and diagrams: Chelsea 892 Series PTO parts list with prices
