The Chelsea 272 Series Power Take-Off Assembly, part number 272KBJKX-P5XD or 272KBJKXP5XD, is a 6-bolt hot shift PTO built for medium-duty mobile equipment applications. The 272 Series supports intermittent torque up to 300 lb-ft and is available with either pneumatic or hydraulic shift. This unit features an integral air control valve and rotatable flanges for flexible installation. The 272 Series consolidates earlier Chelsea designs and offers nine speed ratios across 18 shift configurations, covering direct-mount and driveshaft output arrangements. Typical service markets include aerial, construction equipment, towing and recovery, and water trucks. Call us to confirm proper fit for your specific transmission and 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
Rotatable flanges for flexible installation orientation
Nine speed ratios available across 18 shift configurations
Compatible with aerial, construction, towing/recovery, and water truck applications
Wet-Spline option available for extended PTO and pump shaft service life
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 Options: Round Shaft 1 in. with 1/4 in. key; Round Shaft 1-1/4 in. with 5/16 in. key
- Lubricant Code Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
- Speed Ratios Available: 9
- Shift Configurations Available: 18
- Part Number: 272KBJKX-P5XD or 272KBJKXP5XD
Additional Information
The Chelsea 272 Series was engineered to replace and consolidate several earlier Chelsea medium-duty PTO families, including the 230, 231, 236, 238, 270, and 271 Series, into a single flexible platform. The Smart Start option addresses high-torque start-up conditions common in demanding mobile equipment cycles. Rotatable flanges and a broad selection of output configurations make the 272 adaptable across a wide range of truck transmission interfaces. Applications span aerial work platforms, construction machinery, defense vehicles, material handling equipment, water drilling rigs, and towing and recovery operations.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
