The Chelsea 221 Series Power Take-Off, part number 221XCAJP-A3AF or 221XCAJPA3AF, is a 6-bolt mounted PTO built 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. Shift type options within this series include wire/cable and mechanical. The series supports multiple output configurations including SAE A, SAE B, and SAE C pump flanges, as well as driveline output. Intermittent torque for the series is rated at 250 lb-ft. Continuous operation is supported with a 30% de-rating. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 221 Series Power Take-Off
6-bolt mounting configuration
Cast iron housing with tapered cone output bearings
Intermittent torque rating of 250 lb-ft (339 Nm) for the series
Supports wire/cable and mechanical shift types
Compatible with Allison, Eaton/Fuller, Volvo/Mack, and other transmission manufacturers
Output options include SAE A, SAE B, SAE BB, and SAE C pump flanges and driveline
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 / 31-40 kW
- Shaft Power (series): 24 HP at 500 RPM, 48 HP at 1000 RPM
- Continuous Operation: Yes, with 30% de-rating
- Output Types: SAE A Pump Flange, SAE B Pump Flange, SAE BB Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- 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) Pump Spline, SAE B (7/8 in. - 13T) Pump Spline, SAE BB (1 in. - 15T) Pump Spline, SAE C (1-1/4 in. - 14T) Pump Spline
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, and others
- Housing: Cast Iron
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
