The Chelsea 267 Series Power Take-Off Assembly, part number 267XMFJP-M5RK or 267XMFJPM5RK, is a 10-bolt constant mesh PTO engineered to fit Allison automatic transmissions. The 267 Series exceeds the torque capacity of a 6-bolt PTO while delivering the tighter sealing of a 10-bolt mounting pattern. Intermittent torque rating for this series runs 301-400 lb-ft (401-500 Nm), with an application-specific rating of 335 lb-ft (454 Nm) - check the application pages to confirm the actual rating for your setup. Output shaft is a 1-1/4" round with keyway. Shaft power is 32 HP at 500 RPM and 64 HP at 1,000 RPM. Chelsea's 360-degree rotatable flange and optional SuperTorque gears make this unit well suited for refuse trucks, snow and ice trucks, and yard jockey applications. Available from Pro Gear and Transmission. 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. The 267 Series supports continuous operation with a 30% de-rating applied. Common markets include refuse, snow and ice removal, aerial, and military applications. The SuperTorque option provides up to 20% more torque capacity than a standard 267 Series configuration. The RK and RJ output flange options offer additional installation flexibility - reference Chelsea service bulletins PTO-PNI-275 and PTO-PNI-232 for details on those output choices.
Features
10-bolt mounting pattern fits Allison automatic transmissions
Constant mesh (non-shiftable) design - ideal for continuous-duty mobile applications
1-1/4" round output shaft with keyway
Intermittent torque: 335 lb-ft / 454 Nm (verify actual rating on application pages)
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flanges for improved clearance; SuperTorque gears 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: 301-400 lb-ft (401-500 Nm); 335 lb-ft / 454 Nm (Check Application Pages for Actual Torque Ratings)
- MOUNTING TYPE: 10-Bolt
- OUTPUT POWER: 56+ HP (41-50 kW)
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- TRANSMISSION MANUFACTURER: Allison
- SHIFT TYPE: Constant Mesh
- 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 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. The 267 Series supports continuous operation with a 30% de-rating applied. Common markets include refuse, snow and ice removal, aerial, and military applications. The SuperTorque option provides up to 20% more torque capacity than a standard 267 Series configuration. The RK and RJ output flange options offer additional installation flexibility - reference Chelsea service bulletins PTO-PNI-275 and PTO-PNI-232 for details on those output choices.
