{"product_id":"sierra-18-4384-overhaul-gasket-set-for-mercruiser-gm-181-3-0l-replaces-27-17145-27-14250-27-33395","title":"Sierra Overhaul Gasket Set 18-4384 for GM 181 3.0L CID Engine, S\/N 2508261-6229717 (Except 3.0LX)","description":"\u003cp\u003eThe Sierra 18-4384 Overhaul Gasket Set is a complete engine gasket kit built for GM 181 (3.0L) CID engines within S\/N range 2508261-6229717, except the 3.0LX variant. It bundles the three gaskets most commonly needed during an engine overhaul or top-end service, so you are not sourcing individual gaskets separately or guessing at compatibility.\u003c\/p\u003e\u003cp\u003eThe set contains a timing chain cover gasket (Sierra 18-0976, O.E. 27-14250), an intake manifold gasket (Sierra 18-0868, O.E. 27-17145), and an exhaust manifold gasket (Sierra 18-2949, O.E. 27-33395). Each component is manufactured from Mallory gasket material in a round shape, designed for precise O.E. Fitment and reliable sealing performance under the heat and pressure cycles typical of a marine engine.\u003c\/p\u003e\u003cp\u003eSierra builds this kit using quality materials and manufacturing processes intended for long service life, so buyers replacing worn or leaking gaskets on a GM 181 (3.0L) engine can perform a proper overhaul with matched, purpose-built components rather than mixed aftermarket parts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4384\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Overhaul Gasket Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e GM 181 (3.0L) CID Engine, S\/N 2508261-6229717 (Except 3.0LX)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Timing Chain Cover Gasket (18-0976, O.E. 27-14250); Intake Manifold Gasket (18-0868, O.E. 27-17145); Exhaust Manifold Gasket (18-2949, O.E. 27-33395)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Mallory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999563477\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eGM 181 (3.0L) CID Engine, S\/N 2508261-6229717 (Except 3.0LX)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 39060\u003c\/li\u003e\n\u003cli\u003eMallory 9-61101\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engine does the Sierra 18-4384 Overhaul Gasket Set fit?\u003c\/strong\u003e The Sierra 18-4384 Overhaul Gasket Set fits GM 181 (3.0L) CID engines within serial number range 2508261-6229717, except the 3.0LX variant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat gaskets are included in the 18-4384 set?\u003c\/strong\u003e The kit includes a timing chain cover gasket (18-0976), an intake manifold gasket (18-0868), and an exhaust manifold gasket (18-2949).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 3.0LX engine use this gasket set?\u003c\/strong\u003e No. The 18-4384 Overhaul Gasket Set is specified for GM 181 (3.0L) CID engines in the S\/N 2508261-6229717 range, excluding the 3.0LX variant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the gaskets made from?\u003c\/strong\u003e The gaskets in the Sierra 18-4384 set are made from Mallory gasket material in a round shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4384 gasket set weigh?\u003c\/strong\u003e The Sierra 18-4384 Overhaul Gasket Set weighs 1.4 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers does the 18-4384 set cross-reference to?\u003c\/strong\u003e The Sierra 18-4384 Overhaul Gasket Set cross-references to GLM 39060 and Mallory 9-61101.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the O.E. Number for the timing chain cover gasket in this kit?\u003c\/strong\u003e The timing chain cover gasket included in the 18-4384 set (Sierra 18-0976) corresponds to O.E. Number 27-14250.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the O.E. Number for the intake manifold gasket in this kit?\u003c\/strong\u003e The intake manifold gasket included in the 18-4384 set (Sierra 18-0868) corresponds to O.E. Number 27-17145.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the O.E. Number for the exhaust manifold gasket in this kit?\u003c\/strong\u003e The exhaust manifold gasket included in the 18-4384 set (Sierra 18-2949) corresponds to O.E. Number 27-33395.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4384 gasket set genuine OEM or aftermarket?\u003c\/strong\u003e The 18-4384 Overhaul Gasket Set is a Sierra-branded replacement kit engineered for O.E. Fitment on qualifying GM 181 (3.0L) engines, not an original GM-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are the gaskets in this set?\u003c\/strong\u003e The gaskets in the Sierra 18-4384 Overhaul Gasket Set are white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this set for a general engine overhaul on a GM 181 3.0L?\u003c\/strong\u003e Yes, the 18-4384 set bundles the timing chain cover, intake manifold, and exhaust manifold gaskets needed for a top-end overhaul on the specified GM 181 (3.0L) engine range.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988195127515,"sku":"SIE-18-4384","price":135.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4384_lg__70764.1722506623.500.750.jpg?v=1785188063","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-4384-overhaul-gasket-set-for-mercruiser-gm-181-3-0l-replaces-27-17145-27-14250-27-33395","provider":"Good Vibes Marina","version":"1.0","type":"link"}