The Chelsea 221XEAHX-A4RB or 221XEAHXA4RB is a 221 Series Power Take-Off unit built around a cast iron housing with tapered cone output bearings for heavy-duty load carrying. The 221 Series mounts via a 6-bolt pattern and is compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmissions. Intermittent torque rating for the series reaches 250 lb-ft (339 Nm). Shift is via wire/cable or mechanical actuation. Output options across the series include SAE A, SAE B, and SAE C pump flanges plus driveline configurations. Note that Parker Chelsea has listed the 221 Series as no longer available as a current product line. Call us to confirm proper fit and availability for your application.
Features
Chelsea 221 Series Power Take-Off, part number 221XEAHX-A4RB or 221XEAHXA4RB
6-bolt mounting configuration
Cast iron housing with tapered cone output bearings
Series intermittent torque rating: 250 lb-ft (339 Nm)
Compatible transmission manufacturers: Allison, Eaton/Fuller, Volvo/Mack, and others
Wire/cable or mechanical shift actuation
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque (Series): 250 lb-ft (339 Nm)
- Output Power (Series): 46-55 HP
- Shaft Power (Series): 24 HP at 500 RPM, 48 HP at 1000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Other
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Housing Material: Cast Iron
- Series Status: Obsolete (Parker Chelsea lists 221 Series as no longer available)
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
