Description
The Chelsea 442 Series Power Take-Off, part number 442XXKNX-W3XK or 442XXKNXW3XK, is a 6-bolt transmission-mount PTO built for light-to-medium duty vocational work. It runs a 0.391:1 gear ratio with air shift actuation and a 1-1/4″ round standard output shaft. Mounting uses the standard configuration with metric studs. The no-pressure-lube design keeps installation straightforward. The cast iron housing pairs with tapered cone bearings on the output shaft, a combination that gives the 442 Series its class torque handling and extended service life. Typical applications include dump trucks, tow and recovery trucks, service trucks, and aerial units. Call us to confirm proper fit for your transmission and application.
Features
Product Series: Chelsea 442, engineered for 6-bolt transmission applications
Gear Ratio: 0.391:1
Shift Type: Air Shift
Output: 1-1/4″ round standard shaft
Mounting: Standard mount with metric studs
Cast iron housing with tapered cone bearings for extended service life
Greaseable output shaft; low-profile shift cover for improved installation clearance
Tech Specs
- Product Series: 442
- Input Gear Designator: AH
- Gear Ratio: 0.391:1
- Shift Type: Air Shift
- Output Option: 1-1/4″ Round Standard Shaft
- Mounting Option: Standard Mount with Metric Studs
- Lubricant: No Pressure Lube
- Assembly: 3
Additional Information
The Chelsea 442 Series is suited for aerial, fire and rescue, construction, forestry, and vocational and municipal equipment. Common vehicle applications include snow and ice trucks, service trucks, dump trucks, and towing and recovery trucks. The 442 Series offers thirty-six output options and eleven internal speed ratios across the product line. Parker Chelsea documentation for this series includes the 442 Series Owner’s Manual, 442 Series Parts List (HY25-2442-M1_US), and Chelsea Service Manual (HY25-6442-M1/US). Contact Pro Gear and Transmission to verify transmission compatibility before ordering.







