The Chelsea 267SDFJP-M3XX or 267SDFJPM3XX is a 10-bolt, constant mesh power take-off built for Allison automatic transmissions. Rated at up to 335 lb-ft (454 Nm) intermittent torque, it delivers 32 HP at 500 RPM and 64 HP at 1,000 RPM through a 1-1/4" round output shaft with keyway. The 267 Series exceeds the torque capacity of a 6-bolt PTO while using the tighter sealing of the 10-bolt mounting pattern, making it a practical fit for variable displacement piston pump circuits on refuse trucks, snow and ice removal equipment, and yard jockey trucks. The 360-degree rotatable flange and optional wet spline or greaseable shaft extend service intervals. Call us to confirm the correct configuration for your specific application.
The Chelsea 267 Series is designed in collaboration with Allison engineers specifically for Allison World Transmissions. Typical applications include snow plow trucks, small refuse trucks, and yard jockey trucks running variable displacement piston pumps. The 267 Series is available in five speed ratios and multiple output configurations. The SuperTorque option delivers up to 20% more torque capacity than a standard 267 Series unit. Contact Pro Gear and Transmission to confirm the correct ratio and output type for your truck's pump circuit.
Features
10-bolt mounting pattern fits Allison automatic transmissions
Constant mesh (non-shiftable) design suited for continuous load-sensing pump applications
Intermittent torque rating: 335 lb-ft (454 Nm) - check application pages for actual torque ratings
Shaft power output: 32 HP at 500 RPM, 64 HP at 1,000 RPM
1-1/4" round output shaft with keyway
360-degree rotatable flange for installation clearance flexibility
Wet spline or greaseable shaft option to extend PTO and pump shaft service life
SuperTorque gear option available for up to 20% additional torque capacity
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 APPLICATION: Allison Automatic
- OUTPUT SHAFT TYPE: 1-1/4" Round with keyway
- OUTPUT POWER: 56+ HP / 41-50 kW
- SHAFT POWER: 32 HP at 500 RPM; 64 HP at 1,000 RPM
- CONTINUOUS OPERATION: Yes, with 30% de-rating
- ROTATABLE FLANGE: 360 degrees
Additional Information
The Chelsea 267 Series is designed in collaboration with Allison engineers specifically for Allison World Transmissions. Typical applications include snow plow trucks, small refuse trucks, and yard jockey trucks running variable displacement piston pumps. The 267 Series is available in five speed ratios and multiple output configurations. The SuperTorque option delivers up to 20% more torque capacity than a standard 267 Series unit. Contact Pro Gear and Transmission to confirm the correct ratio and output type for your truck's pump circuit.
