The Chelsea 221XEAHX-W3RB or 221XEAHXW3RB is a Power Take-Off from Chelsea's 221 Series, a cast-iron, 6-bolt mounted PTO built for low-speed, heavy-duty applications including dump trucks, aerial equipment, and tow and recovery vehicles. The 221 Series carries an intermittent torque rating of 250 lb-ft (339 Nm) and supports output power up to 48 HP at 1,000 RPM. Compatible transmissions span Allison, Eaton/Fuller, and Volvo/Mack platforms. Output options include SAE A, SAE B, and SAE C pump flanges, driveline output, and multiple shaft types. The series offers three internal speed ratios and supports both wire/cable and mechanical shift. Call us to confirm proper fitment for your specific transmission and application.
Features
Chelsea 221 Series, 6-bolt mounting
Cast iron housing with tapered cone output shaft bearings for heavy load capacity
Intermittent torque rating: 250 lb-ft (339 Nm)
Output power: up to 48 HP (36 kW) at 1,000 RPM
Compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions
Wire/cable and mechanical shift options available across the series
Tech Specs
- Mounting Type: 6-Bolt
- Housing: Cast Iron
- Intermittent Torque: 250 lb-ft (339 Nm)
- Output Power: 48 HP (36 kW) at 1,000 RPM; 24 HP (18 kW) at 500 RPM
- Shift Type: Wire/Cable or Mechanical
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack
- Continuous Operation: Yes, with 30% de-rating
- Series Status: Parker Chelsea 221 Series listed as obsolete
