{"product_id":"seamaka-copper-crush-washer-kit-360pcs-18-size-assortment-with-clear-storage-box-for-reliable-oil-drain-plug-sealing","title":"Seamaka copper crush washer kit 360PCS — 18-size assortment with clear storage box for reliable oil drain plug sealing","description":"\u003cp\u003e\u003cstrong\u003eSeamaka 360PCS Copper Crush Washer Kit is a complete assortment of corrosion-resistant copper gaskets in 18 common metric sizes designed for reliable oil drain plug sealing and easy replacement.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit gives mechanics, DIYers, and fleet technicians a ready supply of crush washers for automotive oil pans, hydraulic fittings, and fluid drains. Each washer is stamped from copper for good conformability to mating surfaces, and the transparent storage box separates sizes so you can find the right gasket quickly.\u003c\/p\u003e\n\n\u003ch3\u003eWhich sizes are included and how many of each will I get?\u003c\/h3\u003e\n\u003cp\u003eThe set contains 360 washers across 18 metric sizes tailored to the most frequent oil drain plugs and fittings. Counts are arranged to cover small to larger systems so you won’t run short during routine maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eM6 — 80 pieces\u003c\/li\u003e\n  \u003cli\u003eM8 — 80 pieces\u003c\/li\u003e\n  \u003cli\u003eM10 — 70 pieces\u003c\/li\u003e\n  \u003cli\u003eM12 — 40 pieces\u003c\/li\u003e\n  \u003cli\u003eM14 — 25 pieces\u003c\/li\u003e\n  \u003cli\u003eM16 — 20 pieces\u003c\/li\u003e\n  \u003cli\u003eM18 — 20 pieces\u003c\/li\u003e\n  \u003cli\u003eM20 — 10 pieces\u003c\/li\u003e\n  \u003cli\u003eM22 — 10 pieces\u003c\/li\u003e\n  \u003cli\u003eM24 — 5 pieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does copper perform as a crush washer material?\u003c\/h3\u003e\n\u003cp\u003eCopper is naturally ductile and conforms well to imperfect contact surfaces, creating a dependable metal-to-metal seal when compressed. It resists corrosion and oxidation in engine bays and other exposed environments, extending service life compared with softer materials.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGood malleability for tight sealing under torque\u003c\/li\u003e\n  \u003cli\u003eCorrosion and oxidation resistance for harsh conditions\u003c\/li\u003e\n  \u003cli\u003eDurable across temperature extremes\u003c\/li\u003e\n  \u003cli\u003eMetal seal that reduces risk of leaks when installed correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat applications suit this gasket assortment?\u003c\/h3\u003e\n\u003cp\u003eThe Seamaka kit is meant for oil drain plugs, hydraulic fittings, fuel and oil lines, and other threaded fluid connections where a crush washer or gasket is needed. It’s useful for cars, trucks, motorcycles, agricultural machines, marine fittings, and workshop repairs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomotive oil pan and transmission drain plugs\u003c\/li\u003e\n  \u003cli\u003eHydraulic hose ends and fittings\u003c\/li\u003e\n  \u003cli\u003eMarine and small-engine fluid drains\u003c\/li\u003e\n  \u003cli\u003eElectrical connection sealing in corrosive environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the kit packaged and organized for workshop use?\u003c\/h3\u003e\n\u003cp\u003eWashers come in a clear plastic storage box with labeled compartments so you can access sizes quickly and keep spares organized. The compact case fits on a shelf or in a toolbox and prevents mix-ups between similar diameters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTransparent box for quick visual size checks\u003c\/li\u003e\n  \u003cli\u003eIndividual compartments with size labels\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions for toolbox or shelf storage\u003c\/li\u003e\n  \u003cli\u003eBulk quantities to reduce repeat purchases\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Seamaka 360PCS Copper Crush Washer Kit is intended for professional mechanics, home garage enthusiasts, service shops, and fleet operators who want a comprehensive, ready-to-use selection of copper drain plug gaskets. If you perform regular oil changes, maintain hydraulic systems, or work with engine and marine fittings, this kit supplies the common sizes and quantities needed to keep jobs moving without last-minute trips for parts.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these crush washers reusable after removal?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Copper crush washers are generally single-use; replace them after removal to ensure a reliable metal-to-metal seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these washers fit metric drain plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes common metric sizes from M6 through M24 to match most metric drain plugs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Seamaka","offers":[{"title":"Default Title","offer_id":67591066910905,"sku":"B0DYD4K39R","price":69.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/seamaka-front-packaging_20512045-773b-49be-954d-6586f91850c3.jpg?v=1790540529","url":"https:\/\/redleafauto.ca\/products\/seamaka-copper-crush-washer-kit-360pcs-18-size-assortment-with-clear-storage-box-for-reliable-oil-drain-plug-sealing","provider":"Redleaf Auto","version":"1.0","type":"link"}