The Chelsea 221 Series Power Take-Off, part number 221XEAKP-M3XK or 221XEAKPM3XK, is a 6-bolt PTO assembly built for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. Shift type is wire/cable mechanical. The 1-1/4" round output shaft (with key) is driven by a cast iron housing with tapered cone output bearings, a stronger alternative to needle bearings for higher load capacity. Intermittent torque is rated up to 250 lb-ft (339 Nm); check the application pages for your specific configuration. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, and Hino. Greaseable pump shafts help reduce spline fretting and corrosion over time. Call us to confirm proper fit for your application.
Features
6-bolt mounting compatible with Allison, Eaton/Fuller, Volvo/Mack, and Hino transmissions
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque rated up to 250 lb-ft (339 Nm); verify rating on application pages for your specific config
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Greaseable pump shafts to reduce spline fretting and corrosion
Available in standard or low-profile housing
Tech Specs
- Intermittent Torque: Up to 250 lb-ft (339 Nm) - Check Application Pages for Actual Torque Ratings
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP (31-40 kW)
- Output Shaft Type: 1-1/4" Round with Key
- Transmission Manufacturer Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino
- Mounting Type: 6-Bolt
- Shaft Power: 24 HP at 500 RPM; 48 HP at 1,000 RPM (18 kW at 500 RPM; 36 kW at 1,000 RPM)
- Housing: Cast iron, standard or low-profile
- Continuous Operation: Yes, with 30% de-rating
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
