Description
The Chelsea 442 Series Power Take-Off Assembly, part number 442ZWFNX-A5XK or 442ZWFNXA5XK, is a 6-bolt transmission-mount PTO built for light-to-medium duty vocational trucks including tow trucks, dump trucks, and service trucks. This unit runs an air shift actuator, a 0.391:1 gear ratio, and a 1-1/4″ round standard output shaft. Mounting uses the standard configuration with metric studs, and the unit operates without a pressure lube system. The cast iron housing and tapered cone bearings on the output shaft are characteristic of the 442 Series, which carries an intermittent torque rating of up to 300 lb-ft and output power of 46 to 55 HP for the series. Cross-references include S-17891 and 1450-442ZWFNXA5XK. Call us to confirm proper fit for your application.
Features
Air shift actuation for reliable remote engagement
0.391:1 gear ratio for the output speed required by light-to-medium duty applications
1-1/4″ round standard output shaft with greaseable design for extended service life
Standard mount with metric studs for broad 6-bolt transmission compatibility
No pressure lube system simplifies installation and maintenance
Cast iron housing with tapered cone bearings, characteristic of the 442 Series for long service life
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
Additional Information
Cross-reference part numbers for 442ZWFNX-A5XK or 442ZWFNXA5XK include: S-17891, S17891, 1450-442ZWFNXA5XK, 1450442ZWFNXA5XK, CHL442ZWFNXA5XK, WA20-06-5197, and WA20065197. The 442 Series fits virtually all existing 6-bolt transmission applications and is suited for tow trucks, service trucks, dump trucks, and small aerial trucks. Applicable Parker Chelsea documentation includes the 442 Series Owner’s Manual, 442 Series Parts List (HY25-2442-M1_US), and the Chelsea Service Manual (HY25-6442-M1/US).
