The Chelsea 221 Series Power Take-Off, part number 221ZEAKP-M4AF or 221ZEAKPM4AF, is a 6-bolt mounted PTO designed for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. It delivers intermittent torque in the 201-300 lb-ft range (250 lb-ft per application pages) and output power of 46-55 HP, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1000 RPM. The mechanical or wire/cable shift mechanism pairs with a 1-1/4" round output shaft with keyway. 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.
Features
6-bolt mounting compatible with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmissions
Mechanical or wire/cable shift; 1-1/4" round output shaft with keyway
Intermittent torque rating up to 250 lb-ft (339 Nm); check application pages for your specific configuration
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Available in standard or low-profile housing for tight underhood clearance
Greaseable pump shafts to reduce spline fretting and corrosion
Tech Specs
- Intermittent Torque: 201-300 lb-ft / 301-400 Nm (250 lb-ft / 339 Nm per application pages - 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; 1-1/4" Round with key
- Mounting Type: 6-Bolt
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Shaft Power: 24 HP (500 RPM), 48 HP (1000 RPM) / 18 kW (500 RPM), 36 kW (1000 RPM)
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information
