The Chelsea 892HAFJW-B5XY or 892HAFJWB5XY is a hydraulic PowerShift power take-off from the 892 Series, designed specifically for Allison 3000 MD and 4000 HD series transmissions. It features a 10-bolt mounting pattern and an SAE C output flange with a Wet Spline output shaft, which extends pump shaft life under demanding duty cycles. The extended one-piece main shaft moves the pump mounting flange rearward, tucking the housing tightly against the transmission and frame rail for improved clearance without a separate extension unit. Continuous torque capacity reaches 670 ft-lb; intermittent rating is 501+ ft-lb. At 1,000 RPM the unit delivers 128 HP. Typical applications include aerial trucks, fire and rescue apparatus, truck cranes, and refuse trucks. Call us to confirm proper fitment for your specific transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD series transmissions via 10-bolt mounting
Hydraulic PowerShift (hot shift) operation
SAE C output flange with Wet Spline technology to extend pump shaft life
One-piece extended main shaft relocates pump output to the rear of the transmission for improved clearance
Continuous torque rating up to 670 ft-lb; intermittent rating 501+ ft-lb
Shaft power output: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Product Series: 892
- Transmission Fit: Allison 3000 MD and 4000 HD Series
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (Hot Shift)
- Output Shaft Type: SAE C with Wet Spline (XS) Output
- Outlet Flange Type: SAE C
- Continuous Torque: 670 ft-lb / 908 Nm (verify on application pages for exact 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 1,000 RPM: 128 HP / 95 kW
- Lubricant: Wet Spline
Additional Information
Parts Manual: Chelsea 892 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
