2Pcs Seal Gasket, 12558177 Pair Knock Sensor Grommet Valley Pan Seal Gasket for GM LS1 5.3 6.0 5.7 4.8, Direct Replacement for Chevrolet & GMC Trucks, 1999-2006/2007 AUTO_bestsellers_Oct2025 no external flash required

no external flash required

Radiator Key: With this conveniently small bleed key

they are simply accessory lights

Nissan Xterra (2000-2016) ✔ Condition: 100% Brand new in Box

Having a protective rubber shield

2Pcs Seal Gasket, 12558177 Pair Knock Sensor Grommet Valley Pan Seal Gasket for GM LS1 5.3 6.0 5.7 4.8, Direct Replacement for Chevrolet & GMC Trucks, 1999-2006/2007 AUTO_bestsellers_Oct2025 no external flash required2Pcs Seal Gasket, 12558177 Pair Knock Sensor Grommet Valley Pan Seal Gasket for GM LS1 5. 3 6. 0 5. 7 4. 8, Direct Replacement for Chevrolet & GMC Trucks, 1999 2006 2007 Product Features PERFECT COMPATIBILITY: This knock sensor grommet valley pan seal gasket set fits for GM LS1, LQ4, LQ9 engines, including 4. 8L, 5. 3L, 5. 7L, and 6. 0L models. It is compatible with Chevrolet and GMC trucks such as Silverado, Sierra, Yukon, Tahoe, Express, Suburban,