The Chelsea 221 Series Power Take-Off, part number 221XEAJP-A3AZ or 221XEAJPA3AZ, is a 6-bolt mounted PTO built around a cast iron housing with tapered cone output bearings for heavy-duty, low-speed applications. The 221 Series carries an intermittent torque rating of 250 lb-ft (339 Nm) and delivers up to 48 HP at 1,000 RPM. Compatible transmissions span Allison, Eaton/Fuller, Volvo/Mack, and other platforms. Shift options include wire/cable and mechanical actuation. Output configurations in the 221 Series include SAE A, SAE B, and ISO 7652 pump flanges, as well as driveline output. Greaseable pump shafts reduce spline fretting over time. Typical applications include dump trucks, tow and recovery, and aerial equipment. Pro Gear and Transmission sells genuine Chelsea parts -- call us to confirm proper fit for your specific transmission and truck configuration.
Features
Chelsea 221 Series Power Take-Off, part number 221XEAJP-A3AZ
6-bolt mounting with cast iron housing and tapered cone output bearings
Intermittent torque rating: 250 lb-ft (339 Nm); up to 48 HP at 1,000 RPM
Shift options: wire/cable or mechanical actuation
Compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission platforms
Greaseable pump shafts to minimize spline fretting and corrosion
Tech Specs
- Mounting Type: 6-Bolt
- Housing Material: Cast Iron
- Intermittent Torque Rating: 250 lb-ft (339 Nm)
- Output Power: Up to 48 HP at 1,000 RPM
- Shift Type: Wire/Cable or Mechanical
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, and other platforms
- Continuous Operation: Yes, with 30% de-rating
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
