The Chelsea 267XMFJP-M5RA or 267XMFJPM5RA is a 10-bolt constant mesh Power Take-Off assembly from the Chelsea 267 Series, designed specifically for Allison automatic transmissions. It delivers an intermittent torque rating in the 301-400 lb-ft range, with 335 lb-ft cited as the reference value (verify actual rating on the application pages for your specific installation). The output shaft is a 1-1/4" round shaft with keyway. Shaft power is rated at 32 HP at 500 RPM and 64 HP at 1,000 RPM, with output power of 56+ HP. Chelsea's 360-degree rotatable flange design aids clearance in tight installations. This PTO suits mobile applications on snow plow trucks, small refuse trucks, and yard jockey trucks running variable displacement piston pumps. Call us to confirm proper fit for your application.
The Chelsea 267 Series is co-developed with Allison engineers for direct fitment on Allison World Transmissions. The 267 Series exceeds the torque capacity of a 6-bolt PTO while providing the tighter sealing of a 10-bolt pattern. Available applications include snow plow trucks, small refuse trucks, and yard jockey trucks. The 267 Series is offered in five speed ratios and multiple output configurations. The SuperTorque option adds up to 20% more torque capacity versus the standard 267 Series unit. Output flange options include SAE B, SAE C, and ISO 7652 pump flanges, plus driveline outputs. Continuous operation is supported with a 30% de-rating applied.
Features
10-bolt mounting pattern engineered for Allison automatic transmissions
Constant mesh (non-shiftable) design suited for continuous-duty mobile hydraulic applications
1-1/4" round output shaft with keyway
Intermittent torque up to 335 lb-ft / 454 Nm (confirm actual rating on application pages)
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flange for improved installation clearance; SuperTorque gears and wet spline or greaseable shaft options available
Tech Specs
- MOUNTING TYPE: 10-Bolt
- SHIFT TYPE: Constant Mesh
- TRANSMISSION MANUFACTURER: Allison
- OUTPUT SHAFT TYPE: 1-1/4" Round with Keyway
- INTERMITTENT TORQUE: 335 lb-ft / 454 Nm (Check Application Pages for Actual Torque Ratings; series range 301-400 lb-ft / 401-500 Nm)
- OUTPUT POWER: 56+ HP / 41-50 kW
- SHAFT POWER: 32 HP at 500 RPM, 64 HP at 1,000 RPM / 24 kW at 500 RPM, 48 kW at 1,000 RPM
Additional Information
The Chelsea 267 Series is co-developed with Allison engineers for direct fitment on Allison World Transmissions. The 267 Series exceeds the torque capacity of a 6-bolt PTO while providing the tighter sealing of a 10-bolt pattern. Available applications include snow plow trucks, small refuse trucks, and yard jockey trucks. The 267 Series is offered in five speed ratios and multiple output configurations. The SuperTorque option adds up to 20% more torque capacity versus the standard 267 Series unit. Output flange options include SAE B, SAE C, and ISO 7652 pump flanges, plus driveline outputs. Continuous operation is supported with a 30% de-rating applied.
