The Chelsea 442 Series Power Take-Off, part number 442ZSDAX-A3RK or 442ZSDAXA3RK, is a 6-bolt mounting PTO built for light-to-medium duty vocational applications including tow trucks, dump trucks, service trucks, and aerial units. The 442 Series features a cast iron housing with tapered cone bearings on the output shaft and a low-profile shift cover, and this unit uses air shift. Output shaft type is a rotatable SAE B 2 or 4-bolt flange with a 7/8-inch 13-tooth SAE B shaft. The series covers eleven internal speed ratios and up to 36 output configurations, including a 360-degree rotatable flange for installation clearance. Call us to confirm proper fit for your transmission application.
Features
Chelsea 442 Series Power Take-Off, part number 442ZSDAX-A3RK or 442ZSDAXA3RK
6-bolt mounting
Cast iron housing with tapered cone bearings on the output shaft
Air shift with low-profile shift cover
Rotatable SAE B 2 or 4-bolt flange with 7/8-inch 13-tooth SAE B shaft
360-degree rotatable output flange for improved installation clearance
Suited for tow trucks, dump trucks, service trucks, and aerial applications
Tech Specs
- Mounting Type: 6-Bolt
- Mounting Option: Deep Mount (Z)
- Gear Ratio Code: S (24/22)
- Input Gear Designator: DA
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 3
- Output Option: Rotatable SAE B 2 or 4-Bolt Flange, SAE B Shaft (7/8" 13T) (RK)
- Housing Material: Cast Iron
- Output Bearing: Tapered Cone Bearings
- Series Intermittent Torque Rating: 201-300 lb-ft (check application pages for actual torque rating)
- Series Output Power: 46-55 HP
- Series Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors, etc.)
Additional Information
The Chelsea 442 Series is designed for 6-bolt transmission applications. With eleven internal speed ratios and 36 output options, including Chelsea's 360-degree rotatable flange, this series accommodates a broad range of installation requirements. Typical vocational markets include snow and ice trucks, forestry equipment, fire and rescue, and construction equipment. Parker documents available for this series include the 442 Series Parts List (HY25-2442-M1_US), the Chelsea Service Manual (HY25-6442-M1/US), and the Chelsea PTO General Information Catalog. Output option RK details are covered in Parker document PTO-PNI-275. Pro Gear and Transmission carries genuine Chelsea PTO units - call us to confirm this part fits your specific transmission and application.Parts manual and diagrams: Chelsea 442 Series PTO parts list with prices
