442ZRJBX-W5XK Chelsea PTO Assembly

The Chelsea 442 Series Power Take-Off 442ZRJBX-W5XK or 442ZRJBXW5XK is a 6-bolt, standard-mount unit with metric studs, designed for light-to-medium duty vocational applications including dump trucks, tow trucks, and service trucks. This assembly carries a 0.391:1 gear ratio, air shift actuation, and a 1-1/4" round standard output shaft. The no-pressure-lube configuration keeps installation straightforward. A cast iron housing and tapered cone bearings on the output shaft contribute to the 442 Series' torque rating and service life across its broad range of 6-bolt transmission applications. Call us to confirm proper fit for your specific transmission and application.

Features

Chelsea 442 Series PTO, part number 442ZRJBX-W5XK or 442ZRJBXW5XK
Air shift actuation
0.391:1 gear ratio
1-1/4" round standard output shaft
Standard 6-bolt mount with metric studs, no-pressure-lube configuration
Cast iron housing with tapered cone bearings on the output shaft
Low-profile shift cover and rotatable output flanges for improved 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 engineered to fit virtually all existing 6-bolt transmission applications. Typical vocational uses include dump trucks, tow trucks, service trucks, and small aerial trucks. The 442 Series offers thirty-six output options and eleven internal speed ratios across the product line. The intermittent torque rating for the 442 Series ranges from 201 to 300 lb-ft (check application pages for the actual torque rating for this specific configuration). Shaft power output for the series is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Applicable reference documents include the 442 Series Owner's Manual, 442 Series Parts List (HY25-2442-M1_US), and the Chelsea Service Manual (HY25-6442-M1/US). Not sure this is the right PTO for your truck? Give us a call and we'll help you confirm the fit.