Description
The Chelsea 890 Series Power Take-Off Assembly, part number 890LHFJW-B5XS or 890LHFJWB5XS, is a hydraulic PowerShift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It uses a 10-bolt mounting configuration and delivers an SAE C output shaft with Wet Spline Technology to extend PTO and pump shaft life under demanding duty cycles. The one-piece main shaft eliminates input splines between the PTO body and the output extension, and the clutch is positioned at the rear of the housing so the gear section tucks tightly against the transmission, locating the pump output to the rear for improved clearance. Continuous torque rating reaches 670 ft-lb, with shaft power of 64 HP at 500 RPM and 128 HP at 1000 RPM. Common applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Call us to confirm proper fit for your application.
Features
Hydraulic PowerShift (hot shift) operation for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting with SAE C outlet flange
SAE C (“XS”) Wet Spline output shaft extends PTO and pump shaft service life
One-piece main shaft eliminates input splines between PTO body and output extension, reducing wear points
Clutch positioned at rear of housing to tuck gear section tightly to transmission for improved pump clearance
Continuous torque rating up to 670 ft-lb; shaft power 64 HP at 500 RPM and 128 HP at 1000 RPM
Tech Specs
- Transmission Manufacturer: Allison
- Product Series: 890
- Input Gear Designator: FJ – Allison 3000 MD and 4000 HD Series
- Shift Type: Hydraulic PowerShift
- Mounting Type: 10-Bolt
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (“XS”) – Extended Shaft
- Lubricant: W – Wet Spline
- Continuous Torque: 670 lb-ft (908 Nm) – Check application pages for actual torque ratings
- Intermittent Torque: 501+ lb-ft (501+ Nm)
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1000 RPM
