The Chelsea 267XMFJP-M3RF or 267XMFJPM3RF is a 10-bolt, constant mesh power take-off assembly built for Allison automatic transmissions. Part of the Chelsea 267 Series, it delivers intermittent torque in the 301-400 lb-ft range, with a series-rated peak of 335 lb-ft (verify actual rating on Chelsea application pages). The output shaft is a 1-1/4" round shaft with key. Shaft power runs 32 HP at 500 RPM and 64 HP at 1,000 RPM, with output power rated at 56+ HP. The 267 Series supports continuous operation with a 30% de-rating and suits mobile hydraulic applications including yard jockey trucks, small refuse trucks, and snow plow trucks. Available with wet spline or greaseable shaft options to extend service life. Call us to confirm proper fit for your specific transmission and pump configuration.
The Chelsea 267 Series is engineered in collaboration with Allison specifically for Allison World Transmissions. The 10-bolt pattern provides a tighter seal than a 6-bolt mounting, and the constant mesh design makes the 267 Series well-suited for load-sensing and variable displacement piston pump applications. Common applications include snow plow trucks, small refuse trucks, and yard jockey trucks. The SuperTorque option adds up to 20% more torque capacity over a standard 267 Series unit. Five speed ratios and multiple output configurations are available across the series. Contact Pro Gear and Transmission to confirm the correct ratio and output configuration for your application.
Features
10-bolt mounting pattern fits Allison automatic transmissions
Constant mesh shift type, supports continuous operation with 30% de-rating
1-1/4" round output shaft with keyway
Intermittent torque: 301-400 lb-ft range (335 lb-ft series rating, check application pages for actual value)
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flanges and SuperTorque gear option available within the 267 Series
Wet spline or greaseable shaft option to extend PTO and pump shaft service life
Tech Specs
- INTERMITTENT TORQUE: 301-400 lb-ft (335 lb-ft series-rated, check application pages for actual torque rating)
- 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)
- CONTINUOUS OPERATION: Yes, with 30% de-rating
Additional Information
The Chelsea 267 Series is engineered in collaboration with Allison specifically for Allison World Transmissions. The 10-bolt pattern provides a tighter seal than a 6-bolt mounting, and the constant mesh design makes the 267 Series well-suited for load-sensing and variable displacement piston pump applications. Common applications include snow plow trucks, small refuse trucks, and yard jockey trucks. The SuperTorque option adds up to 20% more torque capacity over a standard 267 Series unit. Five speed ratios and multiple output configurations are available across the series. Contact Pro Gear and Transmission to confirm the correct ratio and output configuration for your application.
