The Chelsea 890LEFJW-G5XV or 890LEFJWG5XV is a hydraulic PowerShift Power Take-Off from the Chelsea 890 Series, engineered specifically for Allison 3000 (MD) and 4000 (HD) Series transmissions. It mounts via a 10-bolt pattern with an SAE C outlet flange and SAE "C" ("XS") output shaft. The one-piece main shaft eliminates input splines between the PTO and the output extension, and the clutch is positioned at the rear of the housing so the gear section tucks tightly against the transmission for improved pump clearance. Wet-spline output technology helps extend PTO and pump shaft life in demanding duty cycles. Rated for continuous torque up to 670 ft-lb and intermittent torque of 501+ ft-lb, the 890 Series targets aerial trucks, fire and rescue, refuse trucks, and truck cranes. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 890 Series mounts like a standard side-mounted PTO but includes an additional bracket at the rear of the transmission for added support. The unit fits between the transmission and the frame rail, positioning the pump output to the rear of the transmission for adequate clearance. The 890 Series is a single-unit assembly, not a PTO with a bolt-on extension. Typical applications include aerial trucks, fire and rescue trucks, refuse trucks, snow and ice equipment, and truck cranes. The 890 Series can be ordered for transmissions equipped with or without a cooler, a retarder, or both.
Features
Fits Allison 3000 (MD) and 4000 (HD) Series transmissions via 10-bolt mounting
SAE C outlet flange with SAE "C" ("XS") wet-spline output shaft for extended pump spline life
Hydraulic PowerShift engagement for on-the-go power transfer
Continuous-duty torque rating up to 670 ft-lb; intermittent torque 501+ ft-lb
One-piece main shaft design eliminates input splines between PTO body and output extension
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission Application: Allison 3000 (MD) and 4000 (HD) Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C ("XS") Wet Spline
- Continuous Torque: 670 ft-lb (check application pages for actual torque ratings)
- Intermittent Torque: 501+ ft-lb
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
- Lubricant: Wet Spline
Additional Information
The Chelsea 890 Series mounts like a standard side-mounted PTO but includes an additional bracket at the rear of the transmission for added support. The unit fits between the transmission and the frame rail, positioning the pump output to the rear of the transmission for adequate clearance. The 890 Series is a single-unit assembly, not a PTO with a bolt-on extension. Typical applications include aerial trucks, fire and rescue trucks, refuse trucks, snow and ice equipment, and truck cranes. The 890 Series can be ordered for transmissions equipped with or without a cooler, a retarder, or both.
