The Chelsea 890KDFJW-D5XV or 890KDFJWD5XV is a hydraulic hot-shift power take-off built for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and delivers a continuous-duty torque rating up to 670 lb-ft through an SAE C (XS) output shaft with wet-spline lubrication to extend pump shaft life. The one-piece main shaft eliminates input splines between the PTO body and the output extension, while the rear-positioned clutch tucks the housing tightly against the transmission for improved pump clearance. Shaft power output reaches 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 vehicle configuration.
Features
Chelsea 890 Series, 10-bolt mount for Allison 3000 MD and 4000 HD Series transmissions
Hydraulic PowerShift (hot-shift) engagement
SAE C (XS) output shaft with wet-spline lubrication to extend pump spline life
Continuous-duty torque rating up to 670 lb-ft; intermittent torque 501+ lb-ft
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece main shaft with rear-positioned clutch for improved pump clearance
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (hot-shift)
- Output Shaft Type: SAE C (XS) Output
- Outlet Flange Type: SAE C
- Lubricant: Wet Spline
- Continuous Torque: Up to 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
Additional Information
The Chelsea 890 Series mounts like a standard side-mounted PTO but adds a support bracket at the rear of the transmission. It is compatible with Allison 3000 and 4000 transmissions equipped with or without a cooler, retarder, or both. Typical markets include aerial, fire and rescue, defense, refuse, and on-highway applications. Also referenced as part number SP890KDFJW-D5XV. Dimensions on file: 13 in. H x 11 in. W x 31 in. L. Contact Pro Gear and Transmission to confirm the correct configuration for your chassis.Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
