The Chelsea 272 Series Power Take-Off Assembly, part number 272HMLLP-B8RY or 272HMLLPB8RY, is a 6-bolt hot shift PTO designed for medium-duty mobile equipment applications. The 272 Series supports intermittent torque up to 300 lb-ft and is available with pneumatic or hydraulic shift. This series consolidates the 230, 231, 236, 238, 270, and 271 into a single platform, offering nine speed ratios and eighteen shift options. Applications include aerial work platforms, construction equipment, water trucks, and towing and recovery vehicles. The integral air control valve is included. 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
Wet-Spline output option for extended PTO and pump shaft service life
Smart-Start option available for high-torque start-up conditions
Suited for aerial, construction, towing and recovery, and water truck applications
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, or Round Shaft 1-1/4 in. with 5/16 in. key
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
- Dimensions (H x W x L): 15 in. x 12 in. x 14 in.
Additional Information
The Chelsea 272 Series replaces and consolidates several earlier Chelsea medium-duty hot shift PTO lines, including the 230, 231, 236, 238, 270, and 271 Series. The 272 Series offers direct mount and driveshaft output configurations. Direct mount options include the optional Wet-Spline interface for longer service life on PTO and pump shafts. Driveshaft output configurations can include Smart-Start for applications where high-torque engagement at start-up is a concern. Markets served include aerial work, construction equipment, defense, material handling, water drilling, and general mobile equipment. Part number 272HMLLP-B8RY is also referenced as SP272HMLLP-B8RY 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.
