The Chelsea 221ZEAHX-P3RB or 221ZEAHXP3RB is a 221 Series Power Take-Off built around a cast iron housing with tapered cone output bearings for heavy-duty load capacity. The 221 Series uses a 6-bolt mounting configuration and supports multiple output types including SAE A, SAE B, and SAE C pump flanges, as well as driveline output. Shift type for this series covers wire/cable and mechanical options. The series carries an intermittent torque rating of 250 lb-ft and is rated for continuous operation with a 30% de-rating applied. 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 number 221ZEAHX-P3RB or 221ZEAHXP3RB
6-bolt mounting configuration
Cast iron housing with tapered cone output bearings for heavy-duty load capacity
Intermittent torque rating: 250 lb-ft (339 Nm) for the 221 Series
Supports SAE A, SAE B, SAE BB, and SAE C pump flange output options, plus driveline
Compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions (confirm application before ordering)
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable or Mechanical
- Output Types: 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
- Intermittent Torque Rating (Series): 250 lb-ft / 339 Nm
- Output Power (Series): 46-55 HP / 31-40 kW
- Continuous Operation: Yes, with 30% de-rating
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack
- Lubricant: X = No Pressure Lube (confirm by part number decode)
- Series Status: Obsolete (Parker Chelsea no longer lists the 221 Series as available)
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
