Is your truck using more oil, running rough, or have a check engine light for emissions? A clogged PCV (Positive Crankcase Ventilation) valve could be the culprit. This is a direct-fit OEM replacement for part number 12637666 (also replaces 12663027).\n\nIt fits a huge range of GM trucks and SUVs from 2015-2023, including: GMC Yukon/Yukon XL, Chevy Silverado, Suburban, Tahoe, Express vans, Cadillac Escalade, and several Buick and Cadillac sedans. Always double-check your specific year and model.\n\nThe PCV valve is a small but crucial part. It regulates pressure inside your engine's crankcase, recycling gases back to be burned. When it fails, it can cause oil leaks, sludge buildup, poor fuel economy, and increased emissions.\n\nThis replacement is built with heat-resistant thermoplastic and corrosion-resistant metal to last. Installation is usually a 5-minute DIY job – often no tools are needed, just pull out the old valve and push in the new one. It's one of the easiest and cheapest maintenance items you can do to keep your engine running clean and efficient.\n\nComes with a 1-year warranty and support. A simple, preventative fix that can save you from bigger problems down the road.
