The Chelsea 221XCAHP-A5XK is a 221 Series Power Take-Off from Parker Chelsea, designed for low-speed, heavy-duty vocational applications including dump trucks, tow and recovery, and aerial equipment. The 221 Series uses a cast iron housing with tapered cone output bearings for strong load-bearing capability. It mounts via a 6-bolt pattern and is compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission manufacturers. Shift options include wire/cable and mechanical. The series supports multiple output types: SAE A, SAE B, and ISO 7652 pump flanges, as well as driveline output. Intermittent torque for the series is rated at 250 lb-ft (339 Nm). The 221 Series is listed by Parker Chelsea as obsolete. Call us to confirm proper fit and availability for your application.
Features
Chelsea 221 Series Power Take-Off, part number 221XCAHP-A5XK or 221XCAHPA5XK
6-bolt mounting configuration
Cast iron housing with tapered cone output bearings for heavy-duty load capacity
Compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission manufacturers
Shift options: wire/cable or mechanical
Output options include SAE A, SAE B, and ISO 7652 pump flanges, plus driveline
Tech Specs
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable, Mechanical
- Intermittent Torque (Series Rating): 250 lb-ft (339 Nm)
- Output Power (Series Rating): 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Other
- Lubricant: Pressure Lube or No Pressure Lube options available
- Output Shaft Options: Round Shaft (1-1/4 in. with 5/16 in. key), Tapered Shaft (1-1/4 in. with keyway), SAE A (5/8 in. - 9T), SAE B (7/8 in. - 13T), SAE BB (1 in. - 15T), SAE C (1-1/4 in. - 14T)
- Housing: Cast Iron
- Series Status: Obsolete (Parker Chelsea)
Additional Information
The Chelsea 221 Series is listed as obsolete by Parker Chelsea. Buyers sourcing this part for fleet maintenance or equipment repair should call Pro Gear and Transmission to confirm availability and verify fitment for their specific transmission and application. The 221 Series was designed for low-speed, heavy-duty vocational markets including dump trucks, tow and recovery, and aerial equipment. The series features a 360-degree rotatable flange option and a self-lube option for transmissions with limited PTO lubrication. Both standard and low-profile housing configurations were available within this series.Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
