The Chelsea 221 Series Power Take-Off Assembly, part number 221ZLDAX-A3RB or 221ZLDAXA3RB, is a 6-bolt mounted PTO built for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and delivers up to 250 lb-ft (339 Nm) intermittent torque, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft with keyway suits a wide range of hydraulic pump drives. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, and Hino. A cast iron housing with tapered cone output bearings provides greater load-bearing capability than needle-bearing designs. Available in standard or low-profile housing configurations. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting for Allison, Eaton/Fuller, Volvo/Mack, and Hino transmissions
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Intermittent torque rating up to 250 lb-ft (339 Nm); check application pages for actual torque ratings
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 application pages for actual torque ratings)
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with Key
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM; 48 HP at 1,000 RPM (18 kW at 500 RPM; 36 kW at 1,000 RPM)
Additional Information
