Description
The Chelsea 442 Series Power Take-Off, part number 442XUFEX-W5XK or 442XUFEXW5XK, is a 6-bolt mount PTO built for light-to-medium duty vocational applications including dump trucks, service trucks, tow trucks, and aerial units. This unit runs a 0.391:1 gear ratio with air shift actuation and a 1-1/4″ round standard output shaft. Mounting is standard with metric studs. The cast iron housing and tapered cone bearings on the output shaft are characteristic of the 442 Series, which offers up to 36 output configurations and 11 internal speed ratios. Output flanges are rotatable for improved clearance, and output shafts are greaseable. Lubrication is splash-type with no pressure lube circuit. Call us to confirm proper fit for your application.
Features
0.391:1 gear ratio for light-to-medium duty output demands
Air shift actuation
1-1/4″ round standard output shaft
Standard 6-bolt mount with metric studs
Cast iron housing with tapered cone bearings on the output shaft
Rotatable output flanges and greaseable output shafts for field serviceability
Tech Specs
- Product Series: 442
- Input Gear Designator: AH
- Gear Ratio: 0.391:1
- Mounting Option: Standard Mount with Metric Studs
- Shift Type: Air Shift
- Output Option: 1-1/4″ Round Standard Shaft
- Assembly: 3
- Lubricant: No Pressure Lube
- Mounting Configuration: 6-Bolt
Additional Information
The Chelsea 442 Series is designed to work with virtually all 6-bolt transmission applications. Typical vocational uses include dump trucks, tow and recovery trucks, service trucks, snow and ice trucks, and small aerial units. The series offers 36 output options and 11 internal speed ratios, making it adaptable across a wide range of installations. Intermittent torque for the 442 Series ranges up to 250 lb-ft (339 Nm); continuous torque ratings should be de-rated per Chelsea application guidelines. Output shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM for the series. Parker Chelsea publishes a dedicated service manual (HY25-6442-M1/US) and parts list (HY25-2442-M1_US) for the 442 Series, available through Parker’s technical documentation resources.








