442ZWJGX-A4XK Chelsea 442 Series PTO Assembly

The Chelsea 442 Series Power Take-Off Assembly, part number 442ZWJGX-A4XK or 442ZWJGXA4XK, is a 6-bolt mount PTO built around a cast iron housing and tapered cone bearings on the output shaft. This unit runs a 0.391:1 gear ratio and shifts by air, making it well suited for vocational trucks where a clean, remote-actuated engagement is preferred. The standard mount uses metric studs. Output is a 1-1/4" round standard shaft, and the unit requires no pressure lubrication. Rotatable output flanges give added clearance flexibility during installation. Pro Gear and Transmission carries this genuine Chelsea part. Call us to confirm proper fit for your transmission and application.

Features

Chelsea 442 Series, 6-bolt standard mount with metric studs
Air shift actuation for remote engagement
0.391:1 gear ratio
1-1/4" round standard output shaft, no pressure lubrication required
Cast iron housing with tapered cone bearings on the output shaft
Rotatable output flanges and greaseable output shafts for installation flexibility and extended 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

The Chelsea 442 Series is a 6-bolt PTO platform compatible with a wide range of vocational transmission applications including dump trucks, service trucks, tow trucks, and aerial units. The series is rated for intermittent torque in the 201-300 lb-ft range and output power of 46-55 HP at the series level; consult the application pages or call us to verify the actual torque rating for your specific installation. The 442 Series features eleven internal speed ratios and thirty-six output options across the family, with the 360-degree rotatable flange available on select configurations. Parker Chelsea documents available for this series include the 442 Series Owner's Manual, 442 Series Parts List (HY25-2442-M1_US), and Chelsea Service Manual (HY25-6442-M1/US).