The Standard Ignition V503 PCV Valve is engineered to provide precise airflow from the crankcase to the intake manifold, ensuring optimal engine performance in INFINITI vehicles. Constructed with high-grade industrial materials, this valve resists oil and high engine operating temperatures, addressing common issues such as oil contamination and pressure buildup that can lead to engine inefficiency and increased emissions. The spring-loaded valve and sliding pintle design allow for air flow adjustment to OE specifications, resulting in improved fuel economy and reduced engine wear. Manufactured and tested to meet 100% OE quality standards, the V503 PCV Valve offers a direct-fit replacement, facilitating a straightforward installation process. This product is compatible with various INFINITI models, including the EX35, EX37, FX37, G37, M37, Q40, Q50, Q60, Q70, and Q70L, among others. By choosing the Standard Ignition V503 PCV Valve, fleet operators can enhance engine longevity, maintain optimal performance, and reduce maintenance costs associated with engine-related issues.