{"product_id":"mudder-aluminum-crush-washers-100-pack-12mm-id-x-21mm-od-x-1-8mm-toyota-scion-90430-12031-compatible-oil-drain-plug-gaskets","title":"Mudder Aluminum Crush Washers 100-Pack 12mm ID x 21mm OD x 1.8mm — Toyota\/Scion 90430-12031 Compatible Oil Drain Plug Gaskets","description":"\u003cp\u003e\u003cstrong\u003eMudder 100-pack aluminum crush washers are replaceable oil drain plug gaskets sized 12 mm ID x 21 mm OD x 1.8 mm, designed to stop leaks on Toyota\/Scion drain plugs (part 90430-12031).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen changing engine or transmission fluid, a fresh crush washer helps create a reliable seal between the drain plug and oil pan. These lightweight aluminum gaskets deform slightly under torque to fill irregularities and prevent oil seepage, making them a simple, low-cost maintenance item that reduces mess and protects engine components.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these washers reduce oil leaks during fluid changes?\u003c\/h3\u003e\n\u003cp\u003eCrush washers are engineered to compress and conform to the mating surfaces when the drain plug is tightened. That compression fills microscopic gaps and creates a metal-to-metal seal that resists oil under pressure, unlike hardened washers which may allow seepage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSoft aluminum deforms to fill surface imperfections.\u003c\/li\u003e\n  \u003cli\u003eExact 12 mm inner diameter matches many Toyota\/Scion drain bolts.\u003c\/li\u003e\n  \u003cli\u003e1.8 mm thickness provides controlled crush under recommended torque.\u003c\/li\u003e\n  \u003cli\u003eThin profile avoids protrusion that could interfere with plug seating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these fit my vehicle’s drain plug and how do I confirm compatibility?\u003c\/h3\u003e\n\u003cp\u003eThe washers are produced to the dimensions commonly specified for Toyota\/Scion part number 90430-12031. To verify fit, compare the inner diameter (12 mm), outer diameter (21 mm) and thickness (1.8 mm) with your drain plug and pan specifications or consult your vehicle manual.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInner diameter: 12 mm (0.47 inch) for bolt clearance.\u003c\/li\u003e\n  \u003cli\u003eOuter diameter: 21 mm (0.83 inch) for adequate sealing area.\u003c\/li\u003e\n  \u003cli\u003eThickness: 1.8 mm (0.07 inch) for correct crush behavior.\u003c\/li\u003e\n  \u003cli\u003eRefer to OEM part number 90430-12031 for direct cross-reference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow many come in each pack and what are the benefits of buying this quantity?\u003c\/h3\u003e\n\u003cp\u003eThis listing supplies 100 aluminum crush washers, which is convenient for frequent DIY maintenance or a professional shop. Stocking a large quantity reduces the need for repeated purchases and ensures you always have a fresh gasket for each oil or transmission fluid change.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e100 pieces per pack—suitable for years of maintenance or multiple vehicles.\u003c\/li\u003e\n  \u003cli\u003eBulk quantity lowers cost per service compared to single washers.\u003c\/li\u003e\n  \u003cli\u003eConsistent sizing across the pack simplifies inventory for shops.\u003c\/li\u003e\n  \u003cli\u003eSpare washers prevent reusing old, deformed gaskets that cause leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should these crush washers be installed and when should they be replaced?\u003c\/h3\u003e\n\u003cp\u003eReplace the crush washer every time you remove the drain plug to ensure a fresh seal. Installation is straightforward: seat the washer on the drain bolt, hand-start the plug to avoid cross-threading, then torque to the vehicle manufacturer’s specification so the washer compresses properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways use a new washer after removing the drain plug.\u003c\/li\u003e\n  \u003cli\u003eHand-thread first, then tighten to the recommended torque—avoid over-tightening.\u003c\/li\u003e\n  \u003cli\u003eInspect mating surfaces for burrs or damage before installing a new washer.\u003c\/li\u003e\n  \u003cli\u003eDispose of any washers showing nicks or uneven compression.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Mudder aluminum crush washers suit DIY enthusiasts, routine-maintenance garages, and fleet shops working on Toyota and Scion vehicles that reference part 90430-12031. If you perform regular oil or transmission fluid changes and want a reliable, low-cost sealing solution in bulk, this 100-piece pack provides consistent, accurately sized gaskets so each service starts with a fresh seal.\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?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. Replace the crush washer each time the drain plug is removed to ensure a proper seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these match Toyota part 90430-12031?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. These are sized to match the dimensions and fitment typically specified for 90430-12031.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mudder","offers":[{"title":"Default Title","offer_id":48085622128798,"sku":"B0D1G3NX2K","price":34.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/mudder-front-packaging-100-count.jpg?v=1785874968","url":"https:\/\/northtrailauto.ca\/products\/mudder-aluminum-crush-washers-100-pack-12mm-id-x-21mm-od-x-1-8mm-toyota-scion-90430-12031-compatible-oil-drain-plug-gaskets","provider":"North Trail Auto","version":"1.0","type":"link"}