The Chelsea 267XMFJP-M3XY or 267XMFJPM3XY is a 10-bolt, constant mesh power take-off from the Chelsea 267 Series, engineered to fit Allison automatic transmissions. The 1-1/4" round output shaft with key accommodates a range of hydraulic pump configurations. Intermittent torque is rated up to 335 lb-ft (454 Nm) - check application pages for actual torque ratings specific to your installation. Shaft power is rated at 32 HP at 500 RPM and 64 HP at 1,000 RPM, with output power exceeding 56 HP. The 267 Series exceeds the torque capacity of a 6-bolt PTO while offering tighter sealing through its 10-bolt pattern. Common applications include 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 with 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. Typical markets served include refuse, snow and ice removal, aerial, and military applications. Part number 267XMFJP-M3XY is also referenced as SP267XMFJP-M3XY in some supplier catalogs.
Features
10-bolt mounting pattern fits Allison automatic transmissions
Constant mesh shift type - non-shiftable design for continuous power delivery
1-1/4" round output shaft with 5/16" key
Intermittent torque up to 335 lb-ft (454 Nm) - verify rating on application pages
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flanges for improved installation clearance
Wet spline or greaseable shaft option to extend PTO and pump shaft service life
SuperTorque gear option available for up to 20% additional torque capacity
Tech Specs
- MOUNTING TYPE: 10-Bolt
- TRANSMISSION MANUFACTURER: Allison
- SHIFT TYPE: Constant Mesh
- OUTPUT SHAFT TYPE: 1-1/4" Round with 5/16" Key
- INTERMITTENT TORQUE: 335 lb-ft / 454 Nm (Check Application Pages for Actual Torque Ratings)
- 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 available with 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. Typical markets served include refuse, snow and ice removal, aerial, and military applications. Part number 267XMFJP-M3XY is also referenced as SP267XMFJP-M3XY in some supplier catalogs.
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
