The Chelsea 267XGFJW-M5AF or 267XGFJWM5AF is a 267 Series constant mesh Power Take-Off built for Allison automatic transmissions. It mounts via a 10-bolt pattern and delivers a 1-1/4" round output shaft with keyway. The 267 Series exceeds the torque capacity of a 6-bolt PTO while offering tighter sealing through its 10-bolt flange, making it well suited for variable displacement piston pumps on refuse trucks, snow and ice equipment, aerial units, and yard jockey trucks. Intermittent torque rating for the series runs 301-400 lb-ft, with shaft power of 32 HP at 500 RPM and 64 HP at 1,000 RPM. Chelsea's 360-degree rotatable flange design helps with clearance in tight installations. Call us to confirm proper fit for your specific transmission and pump configuration.
Features
10-bolt mounting pattern for tighter sealing versus 6-bolt designs
Constant mesh operation, no shifting required during engagement
1-1/4" round output shaft with key for direct pump drive
360-degree rotatable flange to improve clearance in tight installations
SuperTorque gear option available for up to 20% additional torque capacity
Wet spline or greaseable shaft options to extend PTO and pump shaft service life
Tech Specs
- SHIFT TYPE: Constant Mesh
- MOUNTING TYPE: 10-Bolt
- 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)
- CONTINUOUS OPERATION: Yes, with 30% de-rating
Additional Information
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
