442KSARX-W5XR Chelsea 442 Series PTO Assembly

The Chelsea 442 Series Power Take-Off assembly, part number 442KSARX-W5XR or 442KSARXW5XR, is a 6-bolt mount PTO built for light-to-medium duty vocational applications including tow trucks, dump trucks, service trucks, and aerial units. This specific configuration carries a 0.391:1 gear ratio with air shift actuation, a standard mount with metric studs, and a 1-1/4" round standard output shaft. The cast iron housing and tapered cone bearings on the output shaft are characteristic of the 442 Series, which supports intermittent torque ratings in the 201-300 lb-ft range and output power of 46-55 HP at the series level. The greaseable output shaft and rotatable output flange options contribute to serviceability and installation flexibility. Call us to confirm proper fit for your transmission application.

Features

Chelsea 442 Series, 6-bolt transmission 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 bearings on output shaft
Greaseable output shaft and rotatable output flange for installation flexibility

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 engineered for compatibility with virtually all existing 6-bolt transmission applications. The series supports intermittent torque in the 201-300 lb-ft range and output power of 46-55 HP, with eleven internal speed ratios and up to thirty-six output options available across the series. Vocational markets served include aerial, fire and rescue, construction, forestry, and municipal equipment. Relevant 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).