The Chelsea 267XMFJW-M3AK or 267XMFJWM3AK is a 10-bolt, constant mesh power take-off from the Chelsea 267 Series, engineered specifically for Allison automatic transmissions. It mounts on a 10-bolt pattern, delivering intermittent torque in the 301-400 lb-ft range, with a 335 lb-ft application-specific rating (verify against Chelsea application pages for your setup). The output shaft is a 1-1/4" round with keyway. Shaft power is rated at 32 HP at 500 RPM and 64 HP at 1,000 RPM. The 267 Series fits well in refuse, snow and ice, aerial, and yard jockey truck applications requiring continuous power for load-sensing or variable displacement piston pumps. Call us to confirm proper fit for your transmission and pump configuration.
The 267 Series is designed for variable displacement piston pumps and load-sensing hydraulic systems in demanding mobile applications, including refuse trucks, snow and ice removal vehicles, aerial units, and yard jockey trucks. The 10-bolt mounting pattern provides tighter sealing than a 6-bolt design. Rotatable output flanges allow 360-degree positioning to clear tight engine bays. The Super Torque option delivers up to 20% more torque capacity than a standard 267 Series configuration, and wet spline or greaseable shaft options are available to extend service life on both the PTO and driven pump.
Features
10-bolt mounting pattern designed for Allison automatic transmissions
Constant mesh shift type, suitable for continuous-duty pump applications
1-1/4" round output shaft with keyway
Intermittent torque rating: 301-400 lb-ft range; 335 lb-ft per application data (confirm on Chelsea application pages)
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
Rotatable output flanges for improved clearance; Super Torque gears and wet spline shaft options available within the 267 Series
Tech Specs
- Intermittent Torque: 301-400 lb-ft (401-500 Nm); 335 lb-ft / 454 Nm per application data - check Chelsea application pages for actual rating
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Shift Type: Constant Mesh
- 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 (24 kW at 500 RPM, 48 kW at 1,000 RPM)
Additional Information
The 267 Series is designed for variable displacement piston pumps and load-sensing hydraulic systems in demanding mobile applications, including refuse trucks, snow and ice removal vehicles, aerial units, and yard jockey trucks. The 10-bolt mounting pattern provides tighter sealing than a 6-bolt design. Rotatable output flanges allow 360-degree positioning to clear tight engine bays. The Super Torque option delivers up to 20% more torque capacity than a standard 267 Series configuration, and wet spline or greaseable shaft options are available to extend service life on both the PTO and driven pump.
