RKN18530 | D-2 Heavy Vehicle Air Governor Genuine Wabco/Meritor®

Useful Information

Description: D-2 Heavy Vehicle Air Governor
Condition: New
Brand: Wabco/Meritor®
Part Number: RKN18530
Cross Reference Part Number: WKN18530, WKN18532

Type: Valve
Model: D-2

Vehicle Compatibility:

Freightliner
WESTERN STAR
International
Mack
Volvo - VNL
Kenworth
Peterbilt
Navistar
WHITE

Specifications:

Weight: 1.19 lbs

Product Type: Brake
Operating Pressure: 110-130 PSI
Installation Kit: 4 Bolts and Gasket
Adjustability: Adjustable
Port Thread Size: 1/8-27 NPT
Mounting Dimension: 0.34 in
Port Size: 0.13 in
Maximum Operating Temperature: 200°F
Minimum Operating Temperature: -40°F

Description and Purpose

The D-2 Airflow Regulation Valve is an essential component in the air brake system, responsible for controlling air pressure within the system. It regulates the air compressor's operation, ensuring the correct pressure range for optimal braking performance. Designed for use in heavy-duty trucks, this valve helps maintain consistent air pressure, preventing pressure spikes or drops that could impact braking efficiency.

Why Replacement is Important

Over time, the valve may experience wear, leading to inconsistent air regulation, increased compressor workload, and potential brake malfunctions. Replacing a worn or faulty valve ensures reliable air pressure control, prevents excessive compressor cycling, and enhances the overall durability of the braking system. Regular maintenance and timely replacement reduce the risk of unexpected failures and costly downtime.

Impact on Vehicle Performance

A fully functional D-2 valve ensures that the air brake system operates within the recommended pressure range of 110-130 PSI, providing consistent and responsive braking. Its robust construction allows it to function in extreme temperatures (-40°F to 200°F), making it suitable for various operating conditions. By ensuring steady air pressure and reducing compressor strain, this valve enhances braking reliability, vehicle safety, and overall system efficiency.

Manufacturer Information:

Meritor, Inc. is a U.S.-based company specializing in automotive components for military vehicles, trucks, and trailers. Headquartered in Troy, Michigan, it holds a place among the Fortune 500 companies.

The company’s roots trace back to 1997, when Rockwell International spun off its automotive division, establishing Meritor as an independent entity. In 2000, Meritor Automotive merged with Arvin Industries, forming ArvinMeritor. However, in 2011, the company announced it would return to its original name, Meritor, Inc., a transition completed on March 30, 2011.

A major milestone occurred on February 22, 2022, when Cummins revealed plans to acquire Meritor for $3.7 billion. The acquisition was finalized on August 3, 2022, further integrating Meritor’s expertise into Cummins’ global operations.

Tags & Category: Air Brake, Brake Governor, Air Dryer, D2 Valve, Truck Brakes, Pneumatic Brakes, Pressure Regulator, Compressor Control, Heavy Duty Brakes, Air System, Truck Parts, Air Compressor, Brake Control, Pneumatic Valve, Brake Components

Warranty
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