The Chelsea 267XMFJP-M5GF or 267XMFJPM5GF is a constant mesh Power Take-Off from the Chelsea 267 Series, designed for Allison automatic transmissions and built on a 10-bolt mounting pattern. The output shaft is a 1-1/4" round shaft with keyway. Intermittent torque capacity runs 301-400 lb-ft, with series-characteristic 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 providing the tighter sealing of a 10-bolt pattern, making it a practical fit for yard jockey trucks, small refuse trucks, and snow and ice removal equipment. Chelsea's 360-degree rotatable flange option aids installation clearance, and wet spline or greaseable shaft configurations are available to extend service life. A genuine Chelsea part sold by Pro Gear and Transmission. Call us to confirm proper fit for your specific application.
The Chelsea 267 Series is designed for variable displacement piston pumps and continuous-power mobile applications including snow plow trucks, small refuse trucks, and yard jockey trucks. The 10-bolt mounting pattern provides tighter sealing than a standard 6-bolt PTO. The optional SuperTorque gears deliver up to 20% more torque capacity than a standard 267 Series. Continuous operation is supported with a 30% de-rating. The series is also available with multiple output flange types including SAE B, SAE C, and ISO 7652 pump flanges.
Features
10-bolt mounting pattern fits Allison automatic transmissions
Constant mesh (non-shiftable) design suited for continuous-power mobile applications
1-1/4" round output shaft with keyway
Intermittent torque range: 301-400 lb-ft (401-500 Nm); shaft power 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flanges to improve installation 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 designed for variable displacement piston pumps and continuous-power mobile applications including snow plow trucks, small refuse trucks, and yard jockey trucks. The 10-bolt mounting pattern provides tighter sealing than a standard 6-bolt PTO. The optional SuperTorque gears deliver up to 20% more torque capacity than a standard 267 Series. Continuous operation is supported with a 30% de-rating. The series is also available with multiple output flange types including SAE B, SAE C, and ISO 7652 pump flanges.
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
