The Chelsea 267XBKVP-M3XY or 267XBKVPM3XY is a 267 Series constant mesh power take-off built on a 10-bolt mounting pattern for Allison automatic transmissions. It delivers shaft power rated at 32 HP at 500 RPM and 64 HP at 1,000 RPM, with intermittent torque capacity in the 301-400 lb-ft range (verify actual rating on Chelsea application pages). The output shaft is a 1-1/4" round with keyway configuration. The 267 Series exceeds the torque capacity of a standard 6-bolt PTO while offering the tighter sealing of a 10-bolt pattern, making it a practical choice for variable displacement piston pump applications on refuse trucks, snow and ice equipment, yard jockey trucks, and aerial units. Chelsea's 360-degree rotatable output flange helps clear tight installation constraints. Call us to confirm proper fit for your transmission and pump combination.
The Chelsea 267 Series is designed for mobile applications that require continuous hydraulic power, including refuse trucks, snow and ice removal equipment, yard jockey trucks, and aerial units. The 267 Series is available in five speed ratios and multiple output configurations, including SAE B and SAE C pump flanges and driveline output. The SuperTorque option provides up to 20% more torque capacity compared to a standard 267 Series unit. Wet spline lubrication and greaseable shaft options are available to reduce wear at the PTO-to-pump interface.
Features
10-Bolt mounting pattern fits Allison automatic transmissions
Constant mesh (non-shiftable) design for continuous power delivery
1-1/4" round output shaft with keyway
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
Intermittent torque: 301-400 lb-ft range (check Chelsea application pages for exact rating)
360-degree rotatable output flange for installation clearance
Wet spline or greaseable shaft options available to extend PTO and pump shaft service life
SuperTorque gear option available for up to 20% additional torque capacity
Tech Specs
- MOUNTING TYPE: 10-Bolt
- SHIFT TYPE: Constant Mesh
- TRANSMISSION MANUFACTURER: Allison
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- INTERMITTENT TORQUE: 301-400 lb-ft / 401-500 Nm (335 lb-ft / 454 Nm - check application pages for actual torque rating)
- 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 Chelsea 267 Series is designed for mobile applications that require continuous hydraulic power, including refuse trucks, snow and ice removal equipment, yard jockey trucks, and aerial units. The 267 Series is available in five speed ratios and multiple output configurations, including SAE B and SAE C pump flanges and driveline output. The SuperTorque option provides up to 20% more torque capacity compared to a standard 267 Series unit. Wet spline lubrication and greaseable shaft options are available to reduce wear at the PTO-to-pump interface.
Parts Manual: Chelsea 267 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
