Tristar Racing Products Gen 3 LS Valley Cover Gasket can be used to replace gm part number 12558178. Valley cover gaskets should be replaced when replacing knock sensors or deleting them and adding a new cover. This also comes with two knock sensor grommet/seals. This will work on all gen 3 ls and vortec truck engines 4.8 5.3 5.7 6.0 LR4 LM7 LS1 LQ4 LS6 with rear mounted cam sensor style block.
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Shipping | Items will ship within 1 business day via UPS Ground or USPS Priority Mail |
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Warranty | We offer a 30 day warranty on defective products. |
Returns | Returns are accepted within 30 days of delivery but is the buyers responsibility for return postage. Item must be unused, unopened and in its brand new condition. Returns may be subject to 20% restocking fee. |
Tristar Racing Products