{"product_id":"c3-1968-1982-chevrolet-corvette-vacuum-hose-firewall-grommet-3-hole-ca-30081","title":"C3 1968-1982 Corvette Vacuum Hose Firewall Grommet - 3-Hole","description":"\u003cdiv\u003e\n\u003cp\u003eRestore the integrity of your C3 Corvette with precision—the C3 1968-1982 Chevrolet Corvette Vacuum Hose Firewall Grommet, 3 Hole. This dedicated firewall pass-through is built for the classic 1968–1982 Corvette layout, delivering a clean, secure route for multiple vacuum lines where they meet the engine bay and cabin.\u003c\/p\u003e \u003ch2\u003eEngineered for C3 Corvette (1968-1982)\u003c\/h2\u003e\n\u003cp\u003eDesigned to fit the distinctive three-hole firewall opening used on the C3 generation, this grommet provides a tight seal around vacuum hoses while accommodating three separate hose entries. It’s a targeted solution for owners restoring or maintaining a period-correct engine bay.\u003c\/p\u003e \u003ch2\u003eWhy this 3-Hole Grommet matters\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePrevents vacuum leaks that can affect brake boost, PCV system, and overall engine performance by maintaining a stable hose seal through the firewall.\u003c\/li\u003e \u003cli\u003eOrganizes multiple vacuum lines with a single, integrated grommet, reducing wear from movement and minimizing routing confusion during maintenance.\u003c\/li\u003e \u003cli\u003eProtects hoses from firewall edges and heat exposure, extending hose life and reducing the risk of cracks or abrasion.\u003c\/li\u003e \u003cli\u003eMaintains a cleaner engine bay appearance with a neat, factory-like pass-through that respects the Corvette’s classic lines.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cp\u003eA purpose-built 3-hole firewall grommet designed for C3 Corvettes, ready to install where three vacuum lines pass through the firewall. It provides a durable, reliable seal that helps keep your vacuum systems operating as intended.\u003c\/p\u003e \u003ch2\u003eInstallation tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRemove old grommet and inspect the firewall edge for cracks or damage; replace if necessary to ensure a proper seal.\u003c\/li\u003e \u003cli\u003eClean the firewall surface before installing the new grommet to maximize seal integrity.\u003c\/li\u003e \u003cli\u003eRoute the vacuum hoses through the designated holes, ensuring hoses aren’t twisted or kinked, and verify that all connections are snug.\u003c\/li\u003e \u003cli\u003eRecheck fit after engine bay reassembly and test vacuum-operated components to confirm there are no leaks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal for\u003c\/h2\u003e\n\u003cp\u003eClassic Corvette enthusiasts, hobbyists, and restorers working on the C3 generation (1968–1982). Whether you’re replacing a deteriorated grommet during a restoration or simply re-routing vacuum lines for better reliability, this 3-hole grommet is a practical, targeted upgrade.\u003c\/p\u003e \u003ch2\u003eBetter than generic alternatives\u003c\/h2\u003e\n\u003cp\u003eFramed specifically for the C3 firewall pattern and three-port vacuum routing, this grommet offers a precise fit that generic, multi-application grommets can’t guarantee. Expect a tighter seal, cleaner line management, and fewer adjustments after installation.\u003c\/p\u003e \u003ch2\u003eCare and longevity\u003c\/h2\u003e\n\u003cp\u003eRegularly inspect the grommet for signs of cracking or hardening, especially after exposure to heat cycles. A fresh, pliable grommet maintains effective sealing and hose protection for years of Corvette cruising.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"CA","offers":[{"title":"Default Title","offer_id":53189226266989,"sku":"A330081","price":7.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0032\/6683\/8574\/files\/30081-1.png?v=1781360169","url":"https:\/\/www.westcoastcorvette.com\/products\/c3-1968-1982-chevrolet-corvette-vacuum-hose-firewall-grommet-3-hole-ca-30081","provider":"WestCoastCorvette.com","version":"1.0","type":"link"}