The Chelsea 442 Series Power Take-Off, part number 442GRAHX-A3RK or 442GRAHXA3RK, is a 6-bolt mount PTO built for light-to-medium duty vocational applications including dump trucks, tow trucks, and service trucks. The cast iron housing and tapered cone bearings on the output shaft are defining features of the 442 Series, contributing to its intermittent torque rating of 201-300 lb-ft and output power range of 46-55 HP. This unit uses a wire/cable mechanical shift and carries a 1-1/4" round output shaft with a key. With eleven internal speed ratios and 36 output options available across the 442 Series, confirm your specific ratio and output configuration with Pro Gear and Transmission before ordering.
Features
Chelsea 442 Series Power Take-Off, part 442GRAHX-A3RK or 442GRAHXA3RK
6-bolt mounting for broad transmission compatibility
Cast iron housing with tapered cone bearings on the output shaft
Wire/cable mechanical shift type
Intermittent torque rating: 201-300 lb-ft (339 Nm); output power: 46-55 HP
1-1/4" round output shaft with keyway
Suited for dump trucks, tow trucks, service trucks, and aerial applications
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: Round Shaft, 1-1/4" with Key
- Intermittent Torque (Series): 201-300 lb-ft / 301-400 Nm (check application pages for actual rating)
- 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
- Lubricant Type: No Pressure Lube (X designation)
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors)
