10 Best Automotive Replacement Emission PCV Valve & Breather Grommets 2025

When it comes to keeping your car running smoothly and efficiently, every little part counts. That's why we dug deep into the world of Automotive Replacement Emission PCV Valve & Breather Grommets to bring you the top 10 products to keep your car's exhaust and emissions in check. Our team of experts tested and scored each product, ranging from a 7.5 to an impressive 9.8, and we found that the Dorman 42344 PCV Grommet was the crème de la crème. Compatible with select models, this grommet boasts a 0.943 In. ID, 2.029 In. OD, and a 0.531 In. thickness, making it a reliable choice for any car owner. But don't just take our word for it - read on to discover the rest of our top-rated products that will keep your car running like a dream.