The Chelsea 892 Series Power Take-Off Assembly, part number 892JAFJW-B3CS or 892JAFJWB3CS, is a hydraulic hot-shift PTO engineered for Allison 3000 MD and 4000 HD series transmissions, including the 4700. The 10-bolt mounting locates the SAE C output flange to the rear of the transmission, tucking the housing and gear section close to the transmission for improved clearance between the pump and the frame rail. The one-piece main shaft eliminates input splines between the PTO and the output extension, and Wet Spline Technology on the output reduces wear on the PTO and pump shaft in demanding duty cycles. Continuous torque capacity reaches up to 670 ft-lbs, with shaft power rated at 64 HP at 500 RPM and 128 HP at 1,000 RPM. Typical applications include aerial trucks, fire and rescue equipment, refuse trucks, and truck cranes. Call us to confirm fitment for your specific transmission configuration.
Features
10-Bolt mount fits Allison 3000 MD and 4000 HD series transmissions (input designator FJ)
Hydraulic PowerShift engagement for on-the-fly hot-shift operation
SAE C (XS) output flange with Wet Spline Technology to extend pump shaft life
Continuous-duty torque rating up to 670 ft-lbs; intermittent torque rated 501+ lb-ft
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece main shaft design eliminates input splines between PTO and output extension for improved clearance
Tech Specs
- Transmission Fit: Allison 3000 MD and 4000 HD Series (including 4700)
- Product Series: 892
- Mounting Type: 10-Bolt
- 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 actual rating on application pages)
- 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
