The Chelsea 267 Series Power Take-Off Assembly, part number 267XDFJW-M5RY or 267XDFJWM5RY, is a 10-bolt constant mesh PTO engineered specifically for Allison automatic transmissions. It delivers up to 335 lb-ft (454 Nm) intermittent torque and outputs 64 HP at 1,000 RPM, making it a capable choice for variable-displacement piston pump applications on refuse trucks, snow and ice vehicles, and yard jockey trucks. The output shaft is a 1-1/4" round shaft with key. Chelsea's 360-degree rotatable flange design aids installation clearance, and the SuperTorque option adds up to 20% more torque capacity over a standard 267 Series unit. Call us to confirm proper fit for your specific transmission and application.
The Chelsea 267 Series is available in five speed ratios and multiple output configurations, including SAE B and SAE C pump flanges, ISO 7652 pump flange, and driveline outputs. Common applications include snow plow trucks, small refuse trucks, and yard jockey trucks. Continuous operation is supported with a 30% de-rating. The 267 Series exceeds the torque capacity of a standard 6-bolt PTO while providing the tighter sealing of a 10-bolt pattern. Also referenced as SP267XDFJW-M5RY in some catalog listings.
Features
10-Bolt mounting pattern for Allison and compatible automatic transmissions
Constant mesh (non-shiftable) design suited for continuous power to load-sensing pumps
1-1/4" round output shaft with key
Intermittent torque rating: 335 lb-ft (454 Nm) - check application pages for actual rating
Shaft power output: 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flanges for improved installation clearance
SuperTorque gear option available for up to 20% additional torque capacity
Wet spline or greaseable shaft options to extend PTO and pump shaft service life
Tech Specs
- INTERMITTENT TORQUE: 335 lb-ft / 454 Nm (Check Application Pages for Actual Torque Ratings)
- MOUNTING TYPE: 10-Bolt
- SHIFT TYPE: Constant Mesh
- TRANSMISSION MANUFACTURER: Allison
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- OUTPUT POWER: 56+ HP / 41-50 kW
- SHAFT POWER: 32 HP (500 RPM), 64 HP (1,000 RPM) / 24 kW (500 RPM), 48 kW (1,000 RPM)
Additional Information
The Chelsea 267 Series is available in five speed ratios and multiple output configurations, including SAE B and SAE C pump flanges, ISO 7652 pump flange, and driveline outputs. Common applications include snow plow trucks, small refuse trucks, and yard jockey trucks. Continuous operation is supported with a 30% de-rating. The 267 Series exceeds the torque capacity of a standard 6-bolt PTO while providing the tighter sealing of a 10-bolt pattern. Also referenced as SP267XDFJW-M5RY in some catalog listings.
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
