The Chelsea 442XLAHX-A3RK or 442XLAHXA3RK is a 442 Series Power Take-Off built for 6-bolt transmission applications. This unit runs a 0.391:1 gear ratio with air shift actuation, making it straightforward to integrate into pneumatically controlled vocational truck systems. The output is a 1-1/4" round standard shaft, and the unit mounts via standard mount with metric studs. Lubrication is splash-type with no pressure lube circuit required. The cast iron housing and tapered cone bearings on the output shaft give the 442 Series its intermittent torque rating of 250 lb-ft. Typical platforms include dump trucks, tow trucks, and service trucks. Call us to confirm proper fit for your application.
Features
Chelsea 442 Series, 6-bolt transmission mount with metric studs
Air shift actuation for pneumatic control integration
0.391:1 gear ratio (input gear designator AH)
1-1/4" round standard output shaft (no pressure lube required)
Cast iron housing with tapered cone bearings on the output shaft
Low-profile shift cover with rotatable output flanges for improved clearance
Tech Specs
- Product Series: 442
- Part Number: 442XLAHX-A3RK or 442XLAHXA3RK
- Input Gear Designator: AH
- Gear Ratio: 0.391:1
- Mounting Option: Standard Mount with Metric Studs (6-Bolt)
- Shift Type: Air Shift
- Output Option: 1-1/4" Round Standard Shaft
- Assembly: 3
- Lubricant: No Pressure Lube
- Intermittent Torque (Series): 250 lb-ft (verify application-specific rating)
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information
The Chelsea 442XLAHX-A3RK carries the RK output option designation. Per Parker document PTO-PNI-275, the RK and RJ output options have dedicated application guidance - consult that reference or contact Pro Gear and Transmission to confirm compatibility with your specific transmission and hydraulic pump configuration. The 442 Series owner's manual (HY25-6442-M1/US) and parts list (HY25-2442-M1_US) cover service procedures for this unit.Parts Manual: Chelsea 442 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
