The Chelsea 221 Series Power Take-Off Assembly, part number 221XEDAX-V3XD or 221XEDAXV3XD, is a 6-bolt mounted PTO 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 includes a keyway. Intermittent torque rating for the 221 Series reaches 250 lb-ft (339 Nm); check Chelsea application pages for the exact rating for your specific installation. Output power runs 46-55 HP (31-40 kW), with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmission manufacturers include Allison, Eaton/Fuller, Volvo/Mack, Hino, and others. The cast iron housing is available in standard or low-profile configurations. Call us to confirm proper fit for your application.
The Chelsea 221 Series PTO uses tapered cone output bearings rather than needle bearings, which increases load-bearing capability and extends service life in demanding vocational cycles. The 221 Series offers twenty-six output options, three internal speed ratios, and eleven shift configurations. The 360-degree rotatable pump flange is available on select configurations. A self-lube option is offered for transmissions with marginal PTO port lubrication. Typical applications include dump trucks, tow and recovery vehicles, and aerial equipment. The series is built around a cast iron housing and carries an SAE A, SAE B, ISO 7652, and driveline output flange compatibility at the series level.
Features
6-bolt mounting type for broad transmission compatibility
Wire/cable mechanical shift operation
1-1/4" round output shaft with 5/16" key
Intermittent torque rating up to 250 lb-ft (339 Nm) - verify on Chelsea application pages
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: 250 lb-ft / 339 Nm (check Chelsea application pages for actual rating by application)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Output Shaft Type: 1-1/4" Round with 5/16" key
- 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)
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing: Standard or low-profile
Additional Information
The Chelsea 221 Series PTO uses tapered cone output bearings rather than needle bearings, which increases load-bearing capability and extends service life in demanding vocational cycles. The 221 Series offers twenty-six output options, three internal speed ratios, and eleven shift configurations. The 360-degree rotatable pump flange is available on select configurations. A self-lube option is offered for transmissions with marginal PTO port lubrication. Typical applications include dump trucks, tow and recovery vehicles, and aerial equipment. The series is built around a cast iron housing and carries an SAE A, SAE B, ISO 7652, and driveline output flange compatibility at the series level.
Equivalent PTOs:
Matched by full model number. Check the mounting, input gear and output against the unit you are replacing before you order. Look up any Chelsea, Muncie or Bezares number on our Muncie to Chelsea PTO cross reference.
