The Chelsea 267 Series Power Take-Off, part number 267XBKVP-M3XQ or 267XBKVPM3XQ, is a 10-bolt constant mesh PTO designed for Allison automatic transmissions. It delivers up to 335 lb-ft (454 Nm) intermittent torque and 64 HP shaft power at 1,000 RPM, making it well-suited for variable-displacement piston pumps on yard jockey trucks, small refuse trucks, and snow and ice removal equipment. The 1-1/4" round output shaft with key fits a range of pump configurations, and the 267 Series' 10-bolt mounting pattern provides a tighter seal than a standard 6-bolt PTO. Chelsea's 360-degree rotatable flange option improves clearance in tight installations, while the SuperTorque gear option delivers up to 20% more torque capacity. Wet spline or greaseable shaft options help extend the service life of both the PTO and pump shaft. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission and application.
The Chelsea 267 Series is available for snow plow trucks, small refuse trucks, and yard jockey trucks requiring continuous hydraulic power. The series supports multiple output flange types including SAE B, SAE C, and ISO 7652 pump flanges as well as driveline outputs. Continuous operation is supported with a 30% de-rating. Wet spline lubrication and greaseable shaft options are available to extend pump and PTO shaft service life. The SuperTorque option provides up to 20% additional torque capacity over a standard 267 Series unit.
Features
10-bolt mounting pattern for Allison automatic transmissions
Constant mesh design, non-shiftable, suited for continuous-duty mobile applications
335 lb-ft (454 Nm) intermittent torque rating; verify actual rating on application pages
1-1/4" round output shaft with keyway
64 HP shaft power at 1,000 RPM; 32 HP at 500 RPM
360-degree rotatable flanges improve installation clearance; SuperTorque gear option adds up to 20% more torque capacity
Tech Specs
- INTERMITTENT TORQUE: 335 lb-ft (454 Nm) - Check Application Pages for Actual Torque Ratings; range 301-400 lb-ft (401-500 Nm)
- MOUNTING TYPE: 10-Bolt
- SHIFT TYPE: Constant Mesh
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- TRANSMISSION MANUFACTURER: Allison
- 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 for snow plow trucks, small refuse trucks, and yard jockey trucks requiring continuous hydraulic power. The series supports multiple output flange types including SAE B, SAE C, and ISO 7652 pump flanges as well as driveline outputs. Continuous operation is supported with a 30% de-rating. Wet spline lubrication and greaseable shaft options are available to extend pump and PTO shaft service life. The SuperTorque option provides up to 20% additional torque capacity over a standard 267 Series unit.
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
