Gen III LS Gasket Kit Compatible with 4.8L 5.3L 5.7L LS1 LS6 LM7 L59 LR4 Chevy Silverado GMC Sierra V8 Engines, Head Gasket Set Replace# 12589226 12612350 12558178
【Compatible Model】The engine gasket rebuild kit designed for GM Gen III LS engines including LS1, LS6, LM7, L59, and LR4. Compatible with 1999-2011 Chevy GMC Silverado Sierra Express Suburban Tahoe Avalanche Camaro Trailblazer Caprice Yukon Savana Envoy Escalade Rainier.
【Note on Fitment Differences】Due to structural variations between car and truck engines, certain gaskets in this kit are not universally interchangeable. Please verify compatibility before purchase.
【Exhaust and Intake Manifold Gasket Fitment】Exhaust manifold gaskets in this head gasket kit are designed for truck applications (LM7 / L59 / LR4) and cathedral port cylinder heads only. Not compatible with LS1 / LS6 passenger vehicle exhaust systems.
【Oil Pan Gasket Fitment】Oil pan gasket is designed for truck oil pan configurations (LM7 / L59 / LR4). Not compatible with LS1 / LS6 oil pan designs due to different sump layout.
【Replacement Part Number】12558178, BTR73450, 12617944, MS92211, 12612350, 12630223, 12633904, 12637683, 12585673, 12639249, 89060436, 12551933, 12611384, 12558177, 12622033. Before placing your order, Please verify that these part numbers match your vehicle.
【Customer Service】If you have any questions about the cylinder gasket set or are not satisfied with the product, please contact us through Amazon Message. We will resolve your issue as soon as possible!
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