442XWHYX-W5XK Chelsea PTO Assembly

The Chelsea 442 Series Power Take-Off Assembly, part number 442XWHYX-W5XK or 442XWHYXW5XK, is a 6-bolt mount PTO built for light-to-medium duty vocational applications including dump trucks, service trucks, tow trucks, and aerial units. 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 configuration with metric studs. No pressure lube is required. The cast iron housing and tapered cone output shaft bearings are characteristic of the 442 Series and contribute to its long service cycle. The 442 Series supports up to 250 lb-ft intermittent torque and output power in the 46-55 HP range. Call us to confirm proper fit for your transmission application.

Features

Chelsea 442 Series, 6-bolt transmission mount with metric studs
Gear ratio: 0.391:1
Shift type: Air Shift
Output: 1-1/4" round standard shaft
Cast iron housing with tapered cone output shaft bearings
Greaseable output shafts; 360-degree rotatable output flanges for clearance 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 designed to fit virtually all existing 6-bolt transmission applications. Eleven internal speed ratios and thirty-six output options make this a versatile platform across vocational markets including construction, forestry, fire and rescue, and municipal equipment. The 442 Series carries an intermittent torque rating of 250 lb-ft (339 Nm) and delivers output power from 46 to 55 HP. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Continuous torque applications should be de-rated per Chelsea application guidelines. 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).