The Chelsea 221 Series Power Take-Off, part number 221XEAKP-A3XK or 221XEAKPA3XK, is a 6-bolt mounted PTO built around a cast iron housing with tapered cone output shaft bearings. The 221 Series carries an intermittent torque rating of 250 lb-ft and supports continuous operation with a 30% de-rating. Output options within the series span SAE A, SAE B, and SAE C pump flanges, driveline configurations, and multiple shaft types including round and tapered outputs. Shift options include wire/cable and mechanical actuation. The space-saving air shift cover is designed to maximize clearance under the truck. Compatible transmission manufacturers for the 221 Series include Allison, Eaton/Fuller, and Volvo/Mack. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 221 Series Power Take-Off, part 221XEAKP-A3XK or 221XEAKPA3XK
6-bolt mounting configuration
Cast iron housing with tapered cone output shaft bearings for heavy load capacity
Intermittent torque rating: 250 lb-ft (339 Nm); continuous operation supported with 30% de-rating
Shift options: wire/cable and mechanical actuation
Compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions
Tech Specs
- Mounting Type: 6-Bolt
- Housing Material: Cast Iron
- Intermittent Torque Rating: 250 lb-ft (339 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options: Round Shaft (1-1/4" - 5/16" Key), Tapered Shaft (1-1/4" w/ Keyway), SAE A (5/8" - 9T) Pump Spline, SAE B (7/8" - 13T) Pump Spline, SAE BB (1" - 15T) Pump Spline, SAE C (1-1/4" - 14T) Pump Spline
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack
