8X6703 | Genuine Caterpillar® Air Brake Relay Valve

Useful Information

Description: Air Brake Relay Valve
R12V Air Brake Relay Valve
Condition: New
Brand: Caterpillar®
Part Number: 8X6703 
Cross Reference Part Number: 8X6703, H8X6703

Type: Valve

Vehicle Compatibility
Compatible with:
Kenworth,
Peterbilt , 
Ford, 
Freightliner,
Fruehauf,
Great Dane, 
Hyundai, 
International,
Mack, 
Reitnouer, 
Stoughton, 
Volvo, 
Wabash, 
Western Star, 
White

Specification:
Thread Type: NPT, 
Material: Stainless Steel, 
(1) 1/2in Supply Port, (4) 1/2in Delivery Ports, (1) 1/4in Service Port, 
Crack Pressure: 4PSI, 
Normal Pressure: 115 PSI
Maximum Pressure: 145 PSI

Weight: 3.3 lb

Description and Purpose

Parts Finder Q provides the Caterpillar® R12V Air Brake Relay Valve, a durable stainless steel component designed to regulate and distribute air pressure in heavy-duty vehicle braking systems. Featuring (1) 1/2-inch supply port, (4) 1/2-inch delivery ports, and (1) 1/4-inch service port, this valve ensures efficient airflow for quick and reliable brake engagement. With a crack pressure of 4 PSI and a maximum pressure of 145 PSI, it plays a vital role in maintaining superior braking performance. Compatible with a wide range of vehicles, including Kenworth, Peterbilt, Freightliner, Volvo, and Mack, this valve enhances the reliability and efficiency of air brake systems in demanding commercial applications.

Impact on Vehicle Performance

The Caterpillar® R12V Air Brake Relay Valve is crucial for enhancing vehicle performance by efficiently managing air pressure within the braking system. By maintaining stable and precise airflow, it improves brake responsiveness, reduces stopping distances, and enhances overall vehicle control, especially in demanding conditions. Preventing issues such as delayed braking or uneven pressure distribution, this valve ensures a smoother and more reliable braking experience. Ultimately, the R12V Air Brake Relay Valve is essential for maintaining the safety, efficiency, and optimal functionality of heavy-duty vehicles, making it indispensable for commercial and industrial applications.

Why Replacement is Important

Replacing a worn or malfunctioning Caterpillar® R12V Air Brake Relay Valve is essential for maintaining the safety and efficiency of a vehicle’s braking system. A defective valve can cause uneven air pressure distribution, delayed brake engagement, or even total brake failure, creating serious risks for both the driver and cargo. Timely replacement ensures proper air pressure regulation, improves braking performance, and minimizes wear on other brake components. This proactive maintenance extends the lifespan of the braking system and is especially critical for heavy-duty vehicles operating in demanding environments. Regular inspections and prompt replacements help ensure vehicle reliability and road safety.

Manufacturer Information:

Tags & Category: Air Valve Relay, Valve, Relay Valve, Valve-Relay, Brake System

Warranty
Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.