The Chelsea 272XSAJX-A3RS or 272XSAJXA3RS is a 6-bolt hot shift Power Take-Off assembly from the Chelsea 272 Series. This series consolidates the 230, 231, 236, 238, 270, and 271 PTO lines into a single platform rated for up to 300 lb-ft of intermittent torque with continuous-duty capability. The 272 Series offers nine speed ratios, eighteen shift configurations, and both pneumatic and hydraulic shift options with an integral air control valve. Output shaft choices include a 1-inch round shaft with 1/4-inch key and a 1-1/4-inch round shaft with 5/16-inch key. Rotatable flanges and an optional Wet-Spline design support longer pump shaft life. Common applications include aerial, construction equipment, towing and recovery, and water trucks. Call us to confirm proper fit for your application.
Features
Chelsea 272 Series 6-bolt hot shift PTO Assembly
Intermittent torque rating up to 300 lb-ft (401-500 Nm)
Pneumatic or hydraulic shift with integral air control valve
Nine speed ratios and eighteen shift configurations available in the series
Output shaft options: 1-inch round with 1/4-inch key, or 1-1/4-inch round with 5/16-inch key
Rotatable flanges and optional Wet-Spline technology for extended pump shaft life
Smart-Start option available for high-torque start-up conditions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Output Shaft Type: Round Shaft 1 inch with 1/4-inch key; Round Shaft 1-1/4 inch with 5/16-inch key
- Speed Ratios Available (Series): 9
- Shift Configurations Available (Series): 18
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors, etc.)
Additional Information
The Chelsea 272 Series consolidates six earlier PTO models (230, 231, 236, 238, 270, and 271) into one medium-duty hot shift platform. Direct mount output options include the optional Wet-Spline configuration for increased PTO and pump shaft service life. Driveshaft output configurations can be ordered with the Smart-Start feature to handle high-torque engagement conditions. Common market applications include aerial work platforms, construction equipment, towing and recovery, and water trucks. Part number 272XSAJX-A3RS is also referenced as SP272XSAJX-A3RS. Pro Gear and Transmission supplies genuine Chelsea PTO assemblies. Call us to confirm the correct configuration for your transmission and application.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
