The Chelsea 221REAJP-S3XD is a 221 Series Power Take-Off designed for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. The 221 Series uses a cast iron housing with tapered cone output bearings for strong load-bearing capability. It mounts on a 6-bolt pad and is compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission manufacturers. The series supports wire/cable and mechanical shift options, and the output shaft accommodates multiple configurations across SAE A, SAE B, SAE BB, and SAE C pump spline types, as well as round and tapered shaft options. Continuous operation is supported at a 30% de-rating. Call us to confirm proper fitment for your transmission and application.
Features
Chelsea 221 Series Power Take-Off, part number 221REAJP-S3XD or 221REAJPS3XD
6-bolt mounting configuration
Intermittent torque rating: 250 lb-ft (339 Nm) for the 221 Series
Compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmissions
Wire/cable and mechanical shift options available in the 221 Series
Cast iron housing with tapered cone output bearings for heavy-duty load capacity
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable or Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Series Intermittent Torque Rating: 250 lb-ft (339 Nm)
- Series Output Power: 46-55 HP
- Continuous Operation: Yes, with 30% de-rating
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, and others
- Housing Material: Cast Iron
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
