The Chelsea 442 Series Power Take-Off Assembly, part number 442KRJKX-A5XK or 442KRJKXA5XK, is a 6-bolt mount PTO built for light-to-medium duty vocational applications including dump trucks, tow trucks, and service trucks. This unit runs a 0.391:1 gear ratio with air shift actuation and a 1-1/4" round standard output shaft. Mounting uses a standard configuration with metric studs. The cast iron housing and tapered cone output shaft bearings are characteristic of the Chelsea 442 Series, which carries an intermittent torque rating of up to 300 lb-ft for the series. No pressure lube is required. Cross-references include 1450-442KRJKXA5XK, CHE-442KRJKX-A5XK, and S-21901. Call us to confirm proper fit for your specific transmission and application.
The Chelsea 442 Series is designed for 6-bolt transmission applications and is suited for vocational trucks including dump trucks, tow trucks, service trucks, and small aerial units. The series offers 36 output options and 11 internal speed ratios. Relevant Parker Chelsea documentation includes the 442 Series Owner's Manual, the 442 Series Parts List (HY25-2442-M1_US), and the Chelsea Service Manual (HY25-6442-M1/US). For additional application guidance or to confirm fit for your transmission, contact Pro Gear and Transmission directly.
Features
Chelsea 442 Series, 6-bolt transmission mount with metric studs
Air shift actuation
0.391:1 gear ratio
1-1/4" round standard output shaft, no pressure lube required
Cast iron housing with tapered cone bearings on output shaft
Rotatable output flanges and greaseable output shafts for clearance and service life
Tech Specs
- Product Series: 442
- Input Gear Designator: AH
- Gear Ratio: 0.391:1
- Mounting Option: Standard Mount with Metric Studs
- Shift Type: Air Shift
- Output Option: 1-1/4" Round Standard Shaft
- Assembly: 3
- Lubricant: No Pressure Lube
Additional Information
Cross-reference part numbers for 442KRJKX-A5XK: 1450-442KRJKXA5XK, 1450442KRJKXA5XK, CHE-442KRJKX-A5XK, CHE442KRJKXA5XK, CHL442KRJKXA5XK, S-21901, S21901.The Chelsea 442 Series is designed for 6-bolt transmission applications and is suited for vocational trucks including dump trucks, tow trucks, service trucks, and small aerial units. The series offers 36 output options and 11 internal speed ratios. Relevant Parker Chelsea documentation includes the 442 Series Owner's Manual, the 442 Series Parts List (HY25-2442-M1_US), and the Chelsea Service Manual (HY25-6442-M1/US). For additional application guidance or to confirm fit for your transmission, contact Pro Gear and Transmission directly.
