The Chelsea 890TAFJW-D5AC or 890TAFJWD5AC is a 890 Series power take-off engineered for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and shifts hydraulically via PowerShift, making it compatible with vehicles that use the transmission's hydraulic circuit for PTO engagement. The SAE C output flange and SAE C extended output shaft improve clearance between the PTO and the driven pump. Continuous-duty torque is rated at 670 lb-ft, with intermittent torque capacity exceeding 501 lb-ft. Shaft power output reaches 128 HP at 1,000 RPM. The wet-spline lubrication option helps extend service life on the PTO-to-pump shaft interface. Call us to confirm proper fit for your application.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions
Hydraulic PowerShift engagement
10-bolt mounting pattern
SAE C (XS extended) output shaft improves pump clearance
Continuous-duty torque rating of 670 lb-ft
Wet-spline lubrication to extend PTO and pump shaft life
Tech Specs
- Transmission Compatibility: 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 Extended)
- Continuous Torque: 670 lb-ft (check application pages for actual torque ratings)
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP
- Shaft Power at 500 RPM: 64 HP
- Shaft Power at 1,000 RPM: 128 HP
- Lubrication: 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.
