The Chelsea 221 Series Power Take-Off, part number 221RCAJP-H3RB or 221RCAJPH3RB, is a 6-bolt mounted PTO assembly with wire/cable mechanical shift. The 1-1/4" round output shaft with keyway 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. Output power spans 46-55 HP (31-40 kW). The cast iron housing uses tapered cone bearings on the output shaft for load capacity beyond what needle bearings provide. A low-profile housing option allows clearance in tight cab-under installations. Compatible transmissions include Allison, Eaton/Fuller, Volvo/Mack, and Hino applications. Call us to confirm proper fit for your specific transmission and chassis.
Features
6-bolt mounting with wire/cable mechanical shift
1-1/4" round output shaft with keyway
Intermittent torque up to 250 lb-ft (339 Nm) - verify actual rating on application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Cast iron housing with tapered cone output bearings for heavy-duty load capacity
Greaseable pump shafts to reduce spline fretting and corrosion
Available in standard or low-profile housing for clearance-critical installations
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
- 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
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, Hino, Other
- Housing Options: Standard or Low-Profile
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
