The Chelsea 221REAJX-A3XD or 221REAJXA3XD is a Power Take-Off assembly from Chelsea's 221 Series, a low-speed, heavy-duty PTO line built around a cast iron housing and tapered cone output bearings for greater load-bearing capability than needle-bearing designs. The 221 Series mounts via a 6-bolt pattern and supports multiple output options including SAE A, SAE B, and SAE C pump flanges, driveline outputs, and a 360-degree rotatable flange. Typical applications span dump trucks, aerial equipment, and tow and recovery vehicles. The series is compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission platforms. Pro Gear and Transmission carries this genuine Chelsea part. Call us to confirm proper fit for your specific transmission and application.
Features
Cast iron housing with tapered cone output bearings for enhanced load capacity
6-bolt mounting pattern
Compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission platforms
Output options include SAE A, SAE B, SAE BB, and SAE C pump flanges plus driveline
360-degree rotatable flange available within the 221 Series output range
Typical markets: dump trucks, aerial equipment, tow and recovery
Tech Specs
- Mounting Type: 6-Bolt
- Housing Material: Cast Iron
- Output Bearing Type: Tapered Cone
- Output Types (Series): SAE A Pump Flange, SAE B Pump Flange, SAE BB Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Shift Type (Series): Wire/Cable or Mechanical
- Intermittent Torque Rating (Series): 250 lb-ft (339 Nm)
- Output Power (Series): 46-55 HP / 31-40 kW
- Shaft Power (Series): 24 HP at 500 RPM, 48 HP at 1000 RPM
- Compatible Transmissions (Series): Allison, Eaton/Fuller, Volvo/Mack, Other
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors)
- Note: Parker Chelsea lists the 221 Series as obsolete. Call us to confirm availability and proper application fit.
