The Chelsea 272MBAJP-H5XR is a 272 Series 6-bolt hot shift power take-off assembly for medium-duty truck applications. The 272 Series supports up to 300 lb-ft of intermittent torque and is available with hydraulic or pneumatic shift options, including an integral air control valve. This series consolidates the earlier 230, 231, 236, 238, 270, and 271 Chelsea PTO lines into a single platform, offering nine speed ratios and eighteen shift configurations. Output options include round shaft with 1-inch or 1-1/4-inch keyed shafts, with wet-spline and Smart Start options available in the series. Common applications include aerial work, construction equipment, water trucks, and towing and recovery. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 272 Series 6-bolt mounting
Hot shift operation with hydraulic or pneumatic shift
Integral air control valve included
Up to 300 lb-ft intermittent torque rating
Nine available speed ratios, eighteen shift configurations
Suited for aerial, construction, water truck, and towing and recovery applications
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Hydraulic or Pneumatic (Air)
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Shaft Type: Round Shaft - 1 in. with 1/4 in. key, or 1-1/4 in. with 5/16 in. key
- Output Power: 56+ HP (41-50 kW)
- Speed Ratios Available: 9
- Shift Configurations Available: 18
- Lubricant Options: No Pressure Lube (X), Pressure Lube (P), Wet Spline (W)
Additional Information
The Chelsea 272 Series consolidates six legacy PTO lines - the 230, 231, 236, 238, 270, and 271 - into a single versatile platform. Direct mount configurations offer optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output models include the Smart Start feature, designed for high-torque start-up conditions. The 272 Series is used across aerial, construction, defense, material handling, water drilling, and towing and recovery markets. Part number 272MBAJP-H5XR or 272MBAJPH5XR. Also referenced as SP272MBAJP-H5XR in some catalog listings.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
