Description
The Chelsea 892 Series Power Take-Off Assembly, part number 892UCFJW-B5XS or 892UCFJWB5XS, is a hydraulic PowerShift PTO engineered for Allison 3000 MD and 4000 HD series transmissions. The 10-bolt mounting configuration and SAE C outlet flange place the pump output to the rear of the transmission, tucking the housing tightly against the frame rail for improved pump clearance. The main shaft is a one-piece design that eliminates intermediate input splines, and the clutch sits at the rear of the PTO housing. A wet-spline output extends pump shaft service life in demanding duty cycles. Continuous-duty torque reaches up to 670 ft-lb; shaft power output runs 64 HP at 500 RPM and 128 HP at 1,000 RPM. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your specific application.
Features
Hydraulic PowerShift (hot-shift) operation
10-bolt mounting with SAE C outlet flange
Compatible with Allison 3000 MD and 4000 HD series transmissions
One-piece main shaft eliminates intermediate input splines for a more direct power path
Wet-spline output extends PTO and pump shaft life in demanding conditions
Shaft power output: 64 HP at 500 RPM, 128 HP at 1,000 RPM; continuous-duty torque up to 670 ft-lb
Tech Specs
- Transmission Fit: Allison 3000 MD and 4000 HD Series
- Product Series: 892
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C Extended (XS)
- Lubricant/Output: Wet Spline
- Assembly Designation: 5
- Intermittent Torque: 501+ lb-ft (501+ Nm)
- Continuous Torque: Up to 670 lb-ft (check application pages for actual torque ratings)
- 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
The 892 Series suits applications where pump mounting space is limited and high torque output is critical. Typical uses include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. The unit mounts like a standard side-mounted PTO but includes a rear bracket at the back of the transmission for additional support. It can be ordered for transmissions equipped with or without a cooler, retarder, or both. The output is referenced under part number SP892UCFJW-B5XS in some catalogs. The assembly dimensions are approximately 38.63 in. (L) x 11.75 in. (W) x 13 in. (H).
Parts Manual: Chelsea 892 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
