The Chelsea 267XDFJP-M5XY or 267XDFJPM5XY is a 10-bolt constant mesh Power Take-Off from the Chelsea 267 Series, engineered specifically for Allison automatic transmissions. This series delivers intermittent torque ratings in the 301-400 lb-ft range, with a noted application rating of 335 lb-ft (verify actual torque against Chelsea application pages for your 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 1000 RPM, with output power exceeding 56 HP. The 267 Series supports continuous operation with a 30% de-rating and is a proven choice for variable displacement piston pumps on refuse trucks, snow and ice removal equipment, and yard jockey trucks. Call us to confirm proper fit for your application.
The Chelsea 267 Series is available in five speed ratios and multiple output configurations, including SAE B pump flange, SAE C pump flange, ISO 7652 pump flange, and driveline outputs. Typical applications include snow plow trucks, small refuse trucks, and yard jockey trucks. The 267 Series exceeds the torque capacity of a comparable 6-bolt PTO while offering tighter sealing through its 10-bolt pattern. The SuperTorque option provides up to 20% more torque capacity than a standard 267 Series unit. The part number SP267XDFJP-M5XY is also used as a vendor reference for this assembly.
Features
10-bolt mounting pattern designed for Allison automatic transmissions
Constant mesh shift type, supports continuous operation with 30% de-rating
Intermittent torque rating of 335 lb-ft (454 Nm) - check application pages for your specific installation
1-1/4" round output shaft with keyway
Shaft power: 32 HP at 500 RPM, 64 HP at 1000 RPM
Rotatable flanges for improved clearance; SuperTorque gears available for up to 20% added torque capacity; wet spline or greaseable shaft options to extend PTO and pump shaft life
Tech Specs
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Shift Type: Constant Mesh
- Intermittent Torque: 335 lb-ft (454 Nm) - Check Application Pages for Actual Torque Ratings; range 301-400 lb-ft (401-500 Nm)
- Output Shaft Type: 1-1/4" Round with Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 32 HP at 500 RPM, 64 HP at 1000 RPM (24 kW at 500 RPM, 48 kW at 1000 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 267 Series is available in five speed ratios and multiple output configurations, including SAE B pump flange, SAE C pump flange, ISO 7652 pump flange, and driveline outputs. Typical applications include snow plow trucks, small refuse trucks, and yard jockey trucks. The 267 Series exceeds the torque capacity of a comparable 6-bolt PTO while offering tighter sealing through its 10-bolt pattern. The SuperTorque option provides up to 20% more torque capacity than a standard 267 Series unit. The part number SP267XDFJP-M5XY is also used as a vendor reference for this assembly.
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
