{"product_id":"sierra-18-7884-diesel-oil-filter","title":"Sierra 18-7884 Diesel Oil Filter – Universal \u0026 Volvo Penta Marine Diesel","description":"\u003csection class=\"product-description\"\u003e\n\n\u003ch2\u003eSierra 18-7884 Diesel Oil Filter – Universal \u0026amp; Volvo Penta Marine Diesel\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 18-7884  |  \u003cstrong\u003eSKU:\u003c\/strong\u003e 47-7884\u003c\/p\u003e\n\n\u003cp\u003eThe Sierra 18-7884 is a marine diesel spin-on oil filter for selected Universal and Volvo Penta diesel engines. It uses a 3\/4–16 thread, high-efficiency filter media, an anti-drain-back valve, and a heavy-wall steel canister with epoxy corrosion protection. The anti-drain-back valve retains oil at the filter during shutdown, helping ensure immediate oil pressure on the next startup and reducing wear during cold starts on diesel-powered vessels.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThread: 3\/4‑16\u003c\/li\u003e\n\u003cli\u003eFilter type: Spin-on diesel oil filter\u003c\/li\u003e\n\u003cli\u003eAnti-drain-back valve: Yes\u003c\/li\u003e\n\u003cli\u003eCanister: Heavy-wall epoxy-coated steel\u003c\/li\u003e\n\u003cli\u003eFilter media: High-efficiency, meets or exceeds OEM specification\u003c\/li\u003e\n\u003cli\u003eMarine-duty construction for saltwater and freshwater environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUniversal diesel marine engines specifying filter 299381\u003c\/li\u003e\n\u003cli\u003eVolvo Penta diesel marine engines specifying filter 834337 or 22057107\u003c\/li\u003e\n\u003cli\u003eOther marine diesel applications cross-referencing Mallory 9-57911, Wix 51348, Fram PH3614, or Fram PH7575\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Match by OEM part number rather than appearance. Confirm your engine model and the existing filter’s part number before ordering. The 3\/4‑16 thread and anti-drain-back valve are useful technical identifiers.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eReplace at every scheduled engine oil service. Follow the engine manufacturer’s recommended interval for your specific diesel engine — refer to your engine service manual for guidance.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemove the old filter and confirm the old gasket has come away with it — a retained gasket will cause an oil leak\u003c\/li\u003e\n\u003cli\u003eClean the filter mounting surface\u003c\/li\u003e\n\u003cli\u003eLightly coat the new filter gasket with fresh engine oil before threading it on\u003c\/li\u003e\n\u003cli\u003eTighten by hand plus ¾ turn, or per engine manufacturer specification — do not over-tighten\u003c\/li\u003e\n\u003cli\u003eRun the engine and inspect for leaks before returning to service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOEM \u0026amp; Cross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSierra:\u003c\/strong\u003e 18-7884\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal:\u003c\/strong\u003e 299381\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValeo:\u003c\/strong\u003e 299381\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolvo Penta:\u003c\/strong\u003e 834337, 22057107\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMallory:\u003c\/strong\u003e 9-57911\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWix:\u003c\/strong\u003e 51348\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFram:\u003c\/strong\u003e PH3614, PH7575\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/sierra-79101-diesel-oil-filter-47-79101\"\u003eSierra 79101 Diesel Oil Filter\u003c\/a\u003e — alternate Sierra marine diesel filter\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sierra-18-0036-diesel-bypass-oil-filter-volvo-penta\"\u003eSierra 18-0036 Diesel Bypass Oil Filter – Volvo Penta\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sierra-18-0035-diesel-full-flow-oil-filter-volvo-penta\"\u003eSierra 18-0035 Diesel Full-Flow Oil Filter – Volvo Penta\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sierra-47-237800-oil-filter-westerbeke-marine-diesel-engine\"\u003eSierra 47-237800 Oil Filter – Westerbeke Marine Diesel Engine\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sierra-oil-drain-kit-1-2-20-thread-42-length-47-7891\"\u003eSierra Oil Drain Kit – 1\/2\"-20 Thread, 42\" Length (47-7891)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e Routine oil and filter changes on Universal and Volvo Penta diesel-powered vessels. The anti-drain-back valve makes this a particularly good choice for diesel-powered boats that sit between uses — it helps ensure oil pressure is available immediately on startup, protecting bearings and other lubricated components during the first seconds of engine operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Issues:\u003c\/strong\u003e Fitment confusion is the most common issue with this filter — several 3\/4–16 diesel filters look very similar but serve different engines. Always confirm by matching Universal 299381 or Volvo Penta 834337 \/ 22057107 against what’s currently on the engine. Also remind customers to verify the old gasket comes off with the old filter before installing the new one — a double gasket on the mount is a common cause of post-service oil leaks.\u003c\/p\u003e\n\n\u003c\/section\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199650267172,"sku":"47-7884","price":25.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-7884.jpg?v=1785611156","url":"https:\/\/marisolmarine.com\/products\/sierra-18-7884-diesel-oil-filter","provider":"Marisol Marine Company","version":"1.0","type":"link"}