The Chelsea 442GRJHX-A4RK or 442GRJHXA4RK is a 442 Series Power Take-Off designed to mount on virtually all 6-bolt transmission applications. The 442 Series is built around a cast iron housing with tapered cone bearings on the output shaft, characteristics that contribute to the series' class-leading torque rating and extended service life. The series supports wire/cable and mechanical shift types, a 1-inch round output shaft with 1/4-inch key, and intermittent torque ratings in the 201-300 lb-ft range. Typical applications include dump trucks, tow and recovery trucks, service trucks, and aerial units. Pro Gear and Transmission carries genuine Chelsea parts. Call us to confirm proper fit for your transmission.
Features
Chelsea 442 Series PTO, part number 442GRJHX-A4RK or 442GRJHXA4RK
6-bolt mounting pattern fits virtually all current 6-bolt transmission applications
Cast iron housing with tapered cone bearings on the output shaft
Wire/cable and mechanical shift options available within the series
1-inch round output shaft with 1/4-inch key
Suited for dump trucks, tow and recovery trucks, service trucks, and aerial units
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: 1-inch round shaft with 1/4-inch key
- Intermittent Torque (series): 201-300 lb-ft (339 Nm); verify actual rating on application page
- Output Power (series): 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Housing Material: Cast iron
- Bearing Type: Tapered cone bearings
- Product Series: Chelsea 442
Additional Information
The RK and RJ output options referenced in this part number are covered in Parker document PTO-PNI-275. The 442 Series also supports Chelsea's 360-degree rotatable flange output and offers eleven internal speed ratios across the line. Consult the 442 Series Parts List (HY25-2442-M1_US) or the Chelsea Service Manual (HY25-6442-M1/US) for detailed application and assembly information. This part falls under NMFC code 128520 for hydraulic PTOs, pumps, and motors.Parts Manual: Chelsea 442 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
