The Chelsea 221 Series Power Take-Off, part number 221XLAHX-V3XK or 221XLAHXV3XK, is a 6-bolt, wire/cable mechanical-shift PTO suited for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. The 1-1/4" round output shaft with key transmits up to 250 lb-ft (339 Nm) intermittent torque, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1000 RPM. Output power spans 46-55 HP (31-40 kW). The cast-iron housing is available in standard or low-profile configurations, and greaseable pump shafts guard against spline fretting and corrosion. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, and Hino. Call us to confirm proper fit for your transmission and application.
The Chelsea 221 Series PTO uses tapered cone output bearings rather than needle bearings for greater load-bearing capability and longer service life. The space-saving shift cover maximizes clearance under the truck, making this series a practical choice for tow and recovery, dump truck, and aerial vocational builds. The 221 Series offers a self-lube option for transmissions that have difficulty delivering lubrication to the PTO. Continuous operation is supported with a 30% de-rating applied to the torque figure. For fitment questions or to track down a hard-to-find configuration, give Pro Gear and Transmission a call.
Features
6-Bolt mounting, wire/cable mechanical shift
1-1/4" round output shaft with key
Intermittent torque rating up to 250 lb-ft (339 Nm); verify actual rating on application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Standard or low-profile housing options available
Greaseable pump shafts to reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 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
- Mounting Type: 6-Bolt
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino
- Shaft Power: 24 HP (500 RPM) / 48 HP (1000 RPM); 18 kW (500 RPM) / 36 kW (1000 RPM)
Additional Information
The Chelsea 221 Series PTO uses tapered cone output bearings rather than needle bearings for greater load-bearing capability and longer service life. The space-saving shift cover maximizes clearance under the truck, making this series a practical choice for tow and recovery, dump truck, and aerial vocational builds. The 221 Series offers a self-lube option for transmissions that have difficulty delivering lubrication to the PTO. Continuous operation is supported with a 30% de-rating applied to the torque figure. For fitment questions or to track down a hard-to-find configuration, give Pro Gear and Transmission a call.
