The Chelsea 890 Series Power Take-Off, part number 890LGFJW-G5XK or 890LGFJWG5XK, is a hydraulic hot-shift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. The 890 Series mounts with a 10-bolt pattern and positions the pump output flange to the rear of the transmission, fitting between the transmission and the frame rail to maximize pump clearance. The output is an SAE C ("XS") flange type. A one-piece main shaft eliminates the input splines between the PTO and the output extension, and the clutch is located at the rear of the housing so the gear section tucks tightly against the transmission. Wet-spline output technology is standard on this unit. Continuous-duty torque rating for the 890 Series reaches up to 670 ft-lb, with intermittent torque rated at 501+ ft-lb. Output power is 64 HP at 500 RPM and 128 HP at 1,000 RPM. Common applications include aerial trucks, fire and rescue vehicles, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific Allison transmission configuration.
Features
Chelsea 890 Series, hydraulic hot-shift (PowerShift) operation
10-bolt mounting, fits Allison 3000 MD and 4000 HD Series transmissions
SAE C ("XS") output shaft and outlet flange type
Continuous-duty torque rating up to 670 ft-lb; intermittent torque 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Wet-spline output standard, extends PTO and pump shaft life in demanding conditions
One-piece main shaft design eliminates input splines between PTO body and output extension
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") Output
- Continuous Torque Rating: 670 lb-ft (check application pages for actual torque ratings)
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
- Lubricant/Output: Wet Spline
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
