442KRJKX-A5RF Chelsea PTO Assembly

The Chelsea 442 Series Power Take-Off, part number 442KRJKX-A5RF or 442KRJKXA5RF, is a 6-bolt mount PTO built for light-to-medium duty vocational applications including dump trucks, tow trucks, and service trucks. 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, delivering a torque rating suited to demanding work cycles. No pressure lube is required. The greaseable output shaft and 360-degree rotatable output flange help with both maintenance access and installation clearance. Call us to confirm proper fit for your application.

Features

Chelsea 442 Series, 6-bolt standard mount with metric studs
Air shift actuation
0.391:1 gear ratio
1-1/4" round standard output shaft
Cast iron housing with tapered cone output shaft bearings
Greaseable output shaft; 360-degree rotatable output flange for installation clearance

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 rated for intermittent torque in the 201-300 lb-ft range (check application pages for the torque rating specific to this configuration). Output shaft power for the series is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Typical vocational applications for this series include dump trucks, tow trucks, service trucks, snow and ice trucks, and aerial units. Thirty-six output options and eleven internal speed ratios are available across the 442 Series lineup, making it a versatile platform for a wide range of 6-bolt transmission installations. The low-profile shift cover aids packaging in tight installations. Parker Chelsea documents for this series include the 442 Series Owner's Manual (HY25-6442-M1/US), the 442 Series Parts List (HY25-2442-M1_US), and a PTO Stud Kits reference (HY25-2002-M1_US).