{"product_id":"billet-aluminum-oil-diverter-barbell-and-front-gallery-plug-for-gm-gen-iii-iv-vortec-truck-engines-and-ls-lsx-series-compatible","title":"Billet Aluminum Oil Diverter and Gallery Plug for GM Gen III\/IV Vortec LS and LSX","description":"\u003cdiv\u003e\n\u003cp\u003eFactory plastic gallery plugs on GM Gen III and Gen IV small-block engines frequently crack under thermal stress, allowing crankcase oil to bypass critical passages and drop system pressure. This billet aluminum oil diverter and gallery plug replaces OEM Part Number 12573460 with a precision CNC-machined 6061-T6 alloy barbell that maintains dimensional stability through repeated heat cycles. Designed for a direct bolt-in fitment across LS1, LS2, LS3, LS6, LQ4, L33, LQ9, L92, L76, L99, LSA, LM4, and Vortec truck engines from 4.8L through 6.2L, the assembly relies on three high-temperature FKM rubber rings to deliver consistent, leak-free sealing under boost or sustained high-RPM loading.\u003c\/p\u003e \u003ch3\u003eBenefits \u0026amp; Practical Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade during routine oil service to permanently eliminate factory injection-molded failures and restore stable oil pump scavenging.\u003c\/li\u003e\n\u003cli\u003eThe heat-treated aluminum core is fully reusable; simply degrease the mounting channel and press fresh FKM seals into place for each maintenance cycle.\u003c\/li\u003e\n\u003cli\u003eCoordinate installation with standard external oil cooler lines or LS-style windage trays to maximize crankcase ventilation and reduce aerated oil conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBase Material: 6061-T6 Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003eManufacturing Method: Five-Axis CNC Machining\u003c\/li\u003e\n\u003cli\u003eApplication Range: GM Gen III\/IV Vortec, LS \u0026amp; LSX Series Blocks\u003c\/li\u003e\n\u003cli\u003eEngine Displacements: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L\u003c\/li\u003e\n\u003cli\u003eOEM Replacement ID: GM Part Number 12573460\u003c\/li\u003e\n\u003cli\u003eSeal Type: Triple High-Temperature FKM Viton O-Rings\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Billet Aluminum Oil Diverter Barbell \u0026amp; Front Gallery Plug\u003c\/li\u003e\n\u003cli\u003e1x Factory-Preloaded Set of FKM Rubber Seals\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation Reminders\u003c\/h3\u003e\n\u003cp\u003eClean all factory silicone residues from the cylinder block feed port before positioning the new plug. Apply light oil to the FKM rings during placement to prevent twisting, and torque mounting hardware according to manufacturer specifications to protect aluminum intake threads.\u003c\/p\u003e \u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.\u003c\/p\u003e \u003cp\u003eSustaining trusted performance standards for builders at intercyprus.com since 2002.\u003c\/p\u003e \u003cp\u003eAvailable language support: English.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"Silver","offer_id":55111892926806,"sku":"1005012416165494-Silver","price":19.09,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/S609af5a6b4c54d0da56c0e7fe7a6c578T.webp?v=1787815797","url":"https:\/\/www.intercyprus.com\/products\/billet-aluminum-oil-diverter-barbell-and-front-gallery-plug-for-gm-gen-iii-iv-vortec-truck-engines-and-ls-lsx-series-compatible","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}