{"product_id":"wix-oil-filter-51083-mercury-mariner","title":"WIX Oil Filter 51083 – Mercury \u0026 Mariner Four-Stroke Outboards","description":"\u003ch2\u003eWIX Oil Filter 51083 – Mercury \u0026amp; Mariner Four-Stroke Outboards\u003c\/h2\u003e\u003cp\u003eThe WIX 51083 is a full-flow spin-on lubricating oil filter used in select Mercury and Mariner four-stroke outboards, as well as compatible automotive and industrial engine applications. Its enhanced-cellulose filtration media captures damaging contaminants while maintaining the oil flow required to protect bearings, journals, and other internal engine components.\u003c\/p\u003e\u003cp\u003eThis filter measures approximately 3.40 inches high by 2.92 inches in diameter and uses an M20 × 1.5 mounting thread. It includes an anti-drainback valve and an 8–11 psi bypass valve to help maintain lubrication during startup and when the filter media becomes restricted.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull-flow spin-on engine oil filter\u003c\/li\u003e\n\u003cli\u003eEnhanced-cellulose filtration media\u003c\/li\u003e\n\u003cli\u003eNominal filtration rating: 21 microns\u003c\/li\u003e\n\u003cli\u003eThread size: M20 × 1.5\u003c\/li\u003e\n\u003cli\u003eHeight: approximately 3.40 in \/ 86 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: approximately 2.92 in \/ 74 mm\u003c\/li\u003e\n\u003cli\u003eGasket outside diameter: approximately 2.73 in \/ 69 mm\u003c\/li\u003e\n\u003cli\u003eRated flow range: 9–11 GPM\u003c\/li\u003e\n\u003cli\u003eBypass-valve setting: 8–11 psi\u003c\/li\u003e\n\u003cli\u003eIntegrated anti-drainback valve\u003c\/li\u003e\n\u003cli\u003eBurst-pressure rating: 280 psi\u003c\/li\u003e\n\u003cli\u003eAttached sealing gasket\u003c\/li\u003e\n\u003cli\u003eWIX Part Number: 51083\u003c\/li\u003e\n\u003cli\u003eUPC\/GTIN: 765809510838\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\u003cp\u003eWIX catalogue data associates the 51083 with select \u003cstrong\u003eMercury Marine and Mariner mid-range four-stroke outboards\u003c\/strong\u003e, including Mercury 25 hp, 30 hp, 30 EFI, 40 hp, 40 EFI, 115 EFI, and corresponding select Mariner mid-range applications. The WIX catalogue also links this filter specification with Mercury \u003cstrong\u003e35-8M0162830\u003c\/strong\u003e and MerCruiser \u003cstrong\u003e35-877767K01\u003c\/strong\u003e. Exact application can vary by model year, engine origin, serial-number range, and installed oil filter head.\u003c\/p\u003e\u003ch3\u003eFitment Notice\u003c\/h3\u003e\u003cp\u003eConfirm the outboard model, serial number, and number printed on the existing filter before ordering. Mercury and Mariner engines with the same advertised horsepower may use different filters depending on production year, engine family, and manufacturing source. Do not select this filter by its M20 × 1.5 thread alone — filter height, gasket diameter, bypass pressure, and anti-drainback-valve configuration must also match the engine’s lubrication system.\u003c\/p\u003e\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\u003cp\u003eReplace the oil filter whenever the engine oil is changed or at the interval specified in the engine owner’s or service manual. Earlier replacement may be appropriate following extended trolling or low-speed operation, frequent short operating cycles, heavy-load or high-temperature use, fuel, water or debris contamination, long periods of seasonal storage, internal engine repairs, or abnormal oil-pressure conditions. Replace the filter immediately if the housing is dented, heavily corroded, or leaking.\u003c\/p\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eRemove the old filter and verify its sealing gasket has not remained on the mounting surface. Clean the filter head and lightly lubricate the new gasket with clean engine oil. Install by hand to the manufacturer’s tightening specification — do not overtighten. After installation: refill with the specified oil, start the engine and confirm normal oil pressure, inspect for leakage, shut down and allow oil to settle, then recheck and correct the oil level.\u003c\/p\u003e\u003ch3\u003eCross-Reference Numbers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 35-8M0162830\u003c\/li\u003e\n\u003cli\u003eMerCruiser 35-877767K01\u003c\/li\u003e\n\u003cli\u003eNAPA Gold 1083\u003c\/li\u003e\n\u003cli\u003eBaldwin B7441 \/ B1402 \/ BT310\u003c\/li\u003e\n\u003cli\u003eDonaldson P550173\u003c\/li\u003e\n\u003cli\u003eFleetguard LF3960\u003c\/li\u003e\n\u003cli\u003eFRAM PH9897\u003c\/li\u003e\n\u003cli\u003eLuber-finer PH2903\u003c\/li\u003e\n\u003cli\u003eMann W610\/81 \/ W712\/8\u003c\/li\u003e\n\u003cli\u003eSuzuki 16510-86Z00\u003c\/li\u003e\n\u003cli\u003eVolvo 2900776 \/ 30866266\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCross-reference numbers are comparison aids only. Confirm the original filter number and exact engine application before substituting brands.\u003c\/p\u003e\u003ch3\u003eOther WIX Filters\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/wix-oil-filter-51806\"\u003eWIX Oil Filter 51806\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/wix-oil-filter-51365-honda-tohatsu-yanmar\"\u003eWIX Oil Filter 51365 – Honda Marine, Tohatsu \u0026amp; Yanmar\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/wix-oil-filter-51358-yanmar\"\u003eWIX Oil Filter 51358 – Yanmar Marine Diesel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/wix-oil-filter-51515-ford\"\u003eWIX Oil Filter 51515 – Ford Marine\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/wix-oil-filter-51361-nissan-kubota\"\u003eWIX Oil Filter 51361 – Nissan, Infiniti \u0026amp; Kubota\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/wix-hydraulic-filter-51551\"\u003eWIX Hydraulic Filter 51551 – 10 Micron\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe common mistake with this filter is ordering by horsepower alone. Mercury used several different engine families across its mid-range lineup, so matching the serial number and existing filter number is the safest way to confirm the correct bypass and gasket specifications. The Mercury OEM cross-references (35-8M0162830 and 35-877767K01) are the most reliable confirmation of fitment for Mercury and Mariner applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada-wide shipping. ⚓\u003c\/p\u003e","brand":"NSP","offers":[{"title":"Default Title","offer_id":43563952111652,"sku":"51083","price":22.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/ee055757-0530-4080-8272-e7fb0d175ec5.png?v=1784314119","url":"https:\/\/marisolmarine.com\/products\/wix-oil-filter-51083-mercury-mariner","provider":"Marisol Marine Company","version":"1.0","type":"link"}