The Chelsea 442ZRDAX-A3GA or 442ZRDAX A3GA is a 442 Series Power Take-Off built for 6-bolt transmission applications. The cast iron housing and tapered cone bearings on the output shaft put this PTO in a class suited for tow trucks, dump trucks, service trucks, and aerial trucks. The 442 Series shifts via wire/cable or mechanical actuation and features a round output shaft with a 1-1/4" key. With eleven internal speed ratios across the series and rotatable output flanges, the 442 is a practical fit for a wide range of light-to-medium duty vocational equipment. Sold by Pro Gear and Transmission.
Features
6-bolt mounting for broad transmission compatibility
Cast iron housing with tapered cone bearings on the output shaft
Wire/cable or mechanical shift actuation
Round output shaft with 1-1/4" key
Rotatable output flanges for improved clearance
Suited for tow trucks, dump trucks, service trucks, and aerial trucks
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable or Mechanical
- Output Shaft Type: Round Shaft with 1-1/4" Key
- Housing Material: Cast Iron
- Output Bearing Type: Tapered Cone Bearings
- Intermittent Torque (Series): 201-300 lb-ft (check application pages for actual rating)
- Output Power (Series): 46-55 HP
- Shaft Power (Series): 24 HP at 500 RPM, 48 HP at 1,000 RPM
Additional Information
The Chelsea 442 Series includes eleven internal speed ratios and thirty-six output options across the family, including the 360-degree rotatable flange. Typical vocational applications include snow and ice trucks, service trucks, dump trucks, and towing and recovery trucks. For fire and rescue, construction, forestry, and municipal equipment use, the 442 Series is a recognized fit. Parker Chelsea publishes a dedicated service manual (HY25-6442-M1/US) and parts list (HY25-2442-M1_US) for the 442 Series.Parts Manual: Chelsea 442 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
