The Chelsea 267SBKVP-M5XQ (also referenced as 267SBKVPM5XQ) is a constant mesh, 10-bolt Power Take-Off from Chelsea's 267 Series, engineered specifically for Allison automatic transmissions. The 1-1/4" round output shaft with key drives load-sensing and variable displacement piston pumps on applications such as snow and ice trucks, small refuse trucks, and yard jockey trucks. Intermittent torque capacity for this series runs 301-400 lb-ft (401-500 Nm), with shaft power rated at 32 HP at 500 RPM and 64 HP at 1,000 RPM. The 267 Series exceeds the torque capacity of a 6-bolt PTO while delivering tighter sealing through its 10-bolt mounting pattern. Call us to confirm proper fit for your transmission and pump configuration.

The Chelsea 267 Series is available with the SuperTorque option, which provides up to 20% more torque capacity than a standard 267 Series unit. Output flange options across the 267 Series include SAE B, SAE C, and ISO 7652 pump flanges, as well as driveline configurations. The 267 Series is listed in the NMFC classification for miscellaneous truck parts including transmission and clutch components (NMFC 121875). Also referenced as part number SP267SBKVP-M5XQ.
Features
10-bolt mounting pattern for Allison automatic transmissions
Constant mesh shift type - non-shiftable, suited for continuous power delivery to load-sensing pumps
1-1/4" round output shaft with key
Intermittent torque: 301-400 lb-ft (401-500 Nm); check application pages for actual ratings
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flanges improve pump clearance; wet spline or greaseable shaft options available to extend PTO and pump shaft life
Tech Specs
- MOUNTING TYPE: 10-Bolt
- SHIFT TYPE: Constant Mesh
- TRANSMISSION MANUFACTURER: Allison
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- INTERMITTENT TORQUE: 301-400 lb-ft / 401-500 Nm (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 the SuperTorque option, which provides up to 20% more torque capacity than a standard 267 Series unit. Output flange options across the 267 Series include SAE B, SAE C, and ISO 7652 pump flanges, as well as driveline configurations. The 267 Series is listed in the NMFC classification for miscellaneous truck parts including transmission and clutch components (NMFC 121875). Also referenced as part number SP267SBKVP-M5XQ.
