{"product_id":"sierra-18-1402-marine-hydraulic-lifter-replaces-mercury-72638-fits-mercruiser-gm-2-5l-120-3-0l-140-engines","title":"Sierra 18-1402 Marine Hydraulic Lifter - Replaces 3854033, 502036 - OMC \u0026 Volvo Penta 3.0L\/181 CID","description":"\u003cp\u003eThe Sierra 18-1402 is a marine hydraulic lifter engineered as a direct replacement for OMC and Volvo Penta 3.0L\/181 CID engines, as well as GM 2.5L\/120 marine engines. Hydraulic lifters sit between the camshaft and pushrod, automatically taking up clearance in the valvetrain so valve lash stays correctly adjusted as the engine heats up and components wear. This self-adjusting action keeps valve operation quiet and consistent without manual lash adjustment, which is critical in a marine engine that runs at sustained loads and varying temperatures.\u003c\/p\u003e\u003cp\u003eThe 18-1402 is a genuine cross-reference match for OEM lifter numbers 3854033 and 502036, meaning it is built to the same fit, form, and function as those original components. It is intended for engine rebuilds, top-end refreshes, or replacing a worn or noisy lifter in engines covered by its listed fitment. Because hydraulic lifters wear as a set and affect valvetrain timing directly, installing correctly cross-referenced replacements like the 18-1402 helps maintain proper engine performance and valve life.\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 18-1402\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Hydraulic Lifter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e GM 2.5L\/120; OMC \u0026amp; Volvo Penta 3.0L\/181 CID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 3854033, 502036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.26 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 1 x 1 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999974761\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGM 2.5L\/120 marine engines\u003c\/li\u003e\n\u003cli\u003eOMC \u0026amp; Volvo Penta 3.0L\/181 CID engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e3854033\u003c\/li\u003e\n\u003cli\u003e502036\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-1402 hydraulic lifter fit?\u003c\/strong\u003e The Sierra 18-1402 fits GM 2.5L\/120 marine engines as well as OMC and Volvo Penta 3.0L\/181 CID engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-1402 replace?\u003c\/strong\u003e This lifter replaces OEM numbers 3854033 and 502036, making it a direct cross-reference for those original parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-1402 a hydraulic or solid lifter?\u003c\/strong\u003e It is a hydraulic lifter, which self-adjusts to take up valvetrain clearance rather than requiring manual lash adjustment like a solid lifter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-1402 lifter weigh?\u003c\/strong\u003e The Sierra 18-1402 hydraulic lifter weighs 0.26 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-1402?\u003c\/strong\u003e The Sierra 18-1402 measures 1 x 1 x 1 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this lifter fit a Volvo Penta 3.0L engine?\u003c\/strong\u003e Yes, the 18-1402 is listed to fit OMC and Volvo Penta 3.0L\/181 CID engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-1402 in a GM 2.5L marine engine?\u003c\/strong\u003e Yes, the Sierra 18-1402 is fitted for GM 2.5L\/120 marine engines in addition to the OMC and Volvo Penta 3.0L\/181 CID application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo hydraulic lifters like the 18-1402 need periodic adjustment?\u003c\/strong\u003e No, hydraulic lifters such as the 18-1402 automatically compensate for valvetrain clearance and do not require manual lash adjustment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-1402 an OEM or aftermarket part?\u003c\/strong\u003e The 18-1402 is an aftermarket Sierra part cross-referenced to OEM numbers 3854033 and 502036 for the same fit and function.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many lifters are needed for a full engine rebuild?\u003c\/strong\u003e The dossier for the Sierra 18-1402 does not specify a total quantity per engine; check your engine's cylinder count and lifter layout to determine how many are needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate a hydraulic lifter like the 18-1402 needs replacing?\u003c\/strong\u003e Common signs include valvetrain noise or ticking, which a properly functioning hydraulic lifter such as the 18-1402 is designed to eliminate by maintaining correct valve clearance.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988088402139,"sku":"SIE-18-1402","price":20.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1402_lg__70582.1558120303.500.750.jpg?v=1785189198","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-1402-marine-hydraulic-lifter-replaces-mercury-72638-fits-mercruiser-gm-2-5l-120-3-0l-140-engines","provider":"Good Vibes Marina","version":"1.0","type":"link"}