{"product_id":"kzdaz-mls-header-gasket-kit-with-bolts-12617944-for-gm-ls-engines","title":"KZDAZ MLS Header Gasket Kit with Bolts (12617944) for GM LS Engines","description":"\u003cdiv\u003e\n  \u003ch2\u003eUpgrade your exhaust sealing with the KZDAZ MLS Header Gasket Kit\u003c\/h2\u003e\n  \u003cp\u003eThe KZDAZ MLS Header Gasket Kit with Bolts is crafted for GM LS-based engines, offering a robust multi-layer steel seal designed to withstand high heat and pressure across a wide power range from 4.8L to 6.2L. This kit is built to align with the LS family (excluding LS7) and is suitable for common GM trucks and SUVs, including Silverado, Suburban, Yukon, CTS, and Escalade. Before you order, verify the exact compatibility to ensure a precise fit for your vehicle’s specifications.\u003c\/p\u003e\n  \u003ch3\u003eWhat’s included and replacement references\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2 MLS exhaust manifold header gaskets\u003c\/li\u003e\n    \u003cli\u003e12 bolts for a complete install\u003c\/li\u003e\n    \u003cli\u003eReplacement part numbers: 12617944 12600530 12620947 12558573; OE bolts 551696\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch3\u003eKey benefits you may notice\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHigh-temperature resistant steel construction for durable sealing under thermal cycles\u003c\/li\u003e\n    \u003cli\u003ePotential to reduce exhaust leakage and lower engine backpressure during operation\u003c\/li\u003e\n    \u003cli\u003eDesigned for straightforward installation with no major modifications required\u003c\/li\u003e\n    \u003cli\u003ePrecise alignment between the exhaust manifold and engine block for a reliable seal\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch3\u003eFitment and compatibility\u003c\/h3\u003e\n  \u003cp\u003eCompatible with Silverado, Suburban, Express 1500\/2500\/3500, Avalanche, Yukon, Allure, CTS, Escalade, and other LS-series engines (excluding LS7). Please review your vehicle’s specs and the listed part numbers to confirm compatibility prior to purchase.\u003c\/p\u003e\n  \u003ch3\u003eInstallation tips for best results\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eThoroughly clean the mating surfaces before installation\u003c\/li\u003e\n    \u003cli\u003eAlign the gasket precisely with the exhaust manifold and engine block\u003c\/li\u003e\n    \u003cli\u003eFollow a progressive tightening sequence to achieve even clamping force\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eIf you have questions about fitment or installation, our friendly support team is available to help. We aim for a smooth shopping experience and a confident seal after installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What vehicles and engines does the KZDAZ MLS header gasket kit fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for GM LS engines across many models; verify exact specs for Silverado, Suburban, Yukon, Escalade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the kit and what installation steps are recommended?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes 2 MLS gaskets and 12 bolts; clean mating surfaces and align parts before torquing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KZDAZ","offers":[{"title":"Default Title","offer_id":42466254258261,"sku":"B0FNN153BL","price":32.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/kzdaz-mls-header-gasket-2-pcs.jpg?v=1778043288","url":"https:\/\/plentytorque.co.uk\/products\/kzdaz-mls-header-gasket-kit-with-bolts-12617944-for-gm-ls-engines","provider":"PlentyTorque","version":"1.0","type":"link"}