The Chelsea 267SMFJP-M5XX or 267SMFJPM5XX is a 267 Series constant mesh power take-off built on a 10-bolt mounting pattern for Allison automatic transmissions. The output shaft is a 1-1/4" round with keyway. Intermittent torque capacity for the 267 Series ranges from 301 to 400 lb-ft (401-500 Nm), with a nominal rating of 335 lb-ft (454 Nm) - check application pages to confirm the actual torque rating for your specific installation. Shaft power is 32 HP at 500 RPM and 64 HP at 1,000 RPM. The 267 Series supports continuous operation with a 30% de-rating and is a proven choice for refuse, snow and ice, and yard jockey truck applications. Rotatable flanges, SuperTorque gear options, and wet spline or greaseable shaft options are available within the series. Call us to confirm proper fit for your application.
The Chelsea 267 Series is available in five speed ratios and multiple output configurations, including SAE B and SAE C pump flanges, ISO 7652 pump flange, and driveline outputs. The series is designed for variable displacement piston pumps and load-sensing hydraulic systems common in refuse trucks, snow and ice equipment, yard jockey trucks, and aerial applications. The SuperTorque option provides up to 20% more torque capacity than a standard 267 Series unit. Wet spline and greaseable shaft options help extend PTO and pump shaft service life. The 267 Series 10-bolt pattern exceeds the torque capacity of a 6-bolt PTO while delivering tighter sealing.
Features
10-bolt mounting pattern, fits Allison automatic transmissions
Constant mesh shift type - non-shiftable design suited for continuous-duty mobile applications
1-1/4" round output shaft with keyway
Intermittent torque: 335 lb-ft / 454 Nm (check application pages for actual torque ratings)
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
Rotatable flanges for improved clearance; SuperTorque gear option available for increased torque capacity
Tech Specs
- INTERMITTENT TORQUE: 301-400 lb-ft / 401-500 Nm; 335 lb-ft / 454 Nm nominal (Check Application Pages for Actual Torque Ratings)
- MOUNTING TYPE: 10-Bolt
- SHIFT TYPE: Constant Mesh
- OUTPUT SHAFT TYPE: 1-1/4" Round with Keyway
- TRANSMISSION MANUFACTURER: Allison
- OUTPUT POWER: 56+ HP / 41-50 kW
- SHAFT POWER: 32 HP (500 RPM), 64 HP (1,000 RPM) / 24 kW (500 RPM), 48 kW (1,000 RPM)
- CONTINUOUS OPERATION: Yes, with 30% de-rating
Additional Information
The Chelsea 267 Series is available in five speed ratios and multiple output configurations, including SAE B and SAE C pump flanges, ISO 7652 pump flange, and driveline outputs. The series is designed for variable displacement piston pumps and load-sensing hydraulic systems common in refuse trucks, snow and ice equipment, yard jockey trucks, and aerial applications. The SuperTorque option provides up to 20% more torque capacity than a standard 267 Series unit. Wet spline and greaseable shaft options help extend PTO and pump shaft service life. The 267 Series 10-bolt pattern exceeds the torque capacity of a 6-bolt PTO while delivering tighter sealing.
