The Chelsea 221XCAJP-W3RK or 221XCAJPW3RK is a Power Take-Off unit from the Chelsea 221 Series, a cast iron, 6-bolt mounted PTO designed for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. The 221 Series carries an intermittent torque rating of 250 lb-ft (339 Nm) and delivers up to 48 HP at 1,000 RPM. Output options across the 221 family include SAE A, SAE B, and SAE C pump flanges as well as driveline configurations. The series accommodates transmissions from Allison, Eaton/Fuller, and Volvo/Mack. Tapered cone output bearings provide greater load-bearing capability than needle-bearing designs. Call us to confirm proper fitment for your specific transmission and application.
Features
Chelsea 221 Series Power Take-Off, part number 221XCAJP-W3RK or 221XCAJPW3RK
6-bolt mounting configuration
Intermittent torque rating: 250 lb-ft (339 Nm) series-level characteristic
Cast iron housing with tapered cone output bearings for heavy load capacity
Compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions (series-level)
Suited for dump trucks, tow and recovery, and aerial applications
Tech Specs
- Mounting Type: 6-Bolt
- Intermittent Torque (Series): 250 lb-ft / 339 Nm
- Output Power (Series): Up to 48 HP at 1,000 RPM / 36 kW at 1,000 RPM
- Shift Type (Series): Wire/Cable or Mechanical
- Transmission Compatibility (Series): Allison, Eaton/Fuller, Volvo/Mack
- Housing Material: Cast Iron
- Output Bearing Type: Tapered Cone
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 221 Series is listed by Parker as obsolete and no longer in active production. Buyers sourcing 221XCAJP-W3RK for service or replacement applications should call Pro Gear and Transmission to verify availability and confirm the correct replacement or cross-reference for their unit.Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
