The Chelsea 267SMFJW-M5RY or 267SMFJWM5RY is a 10-bolt constant mesh Power Take-Off assembly from the Chelsea 267 Series, engineered specifically for Allison automatic transmissions. It delivers an intermittent torque rating of 335 lb-ft (454 Nm) and shaft power of 32 HP at 500 RPM and 64 HP at 1,000 RPM, with output power exceeding 56 HP. The 1-1/4" round output shaft includes a keyway. The 267 Series exceeds the torque capacity of a 6-bolt PTO while providing the tighter sealing of a 10-bolt mounting pattern, making it a practical choice for variable-displacement piston pump applications on snow and ice, refuse, and yard jockey trucks. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
10-bolt mounting pattern for Allison automatic transmissions
Constant mesh shift type, non-shiftable design suited for continuous-duty mobile applications
Intermittent torque: 335 lb-ft (454 Nm); check application pages for actual torque ratings
1-1/4" round output shaft with keyway
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
Rotatable flanges for improved clearance; SuperTorque gears available for up to 20% additional torque capacity
Wet spline or greaseable shaft options to extend PTO and pump shaft service life
Tech Specs
- INTERMITTENT TORQUE: 335 lb-ft (454 Nm) - Check Application Pages for Actual Torque Ratings
- MOUNTING TYPE: 10-Bolt
- SHIFT TYPE: Constant Mesh
- TRANSMISSION MANUFACTURER: Allison
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- 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
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
