{"product_id":"billet-welsh-plug-kits","title":"Cummins Leak Free Welsh (Freeze) Plugs","description":"\u003cul\u003e\n\u003cli\u003e\n\u003ch1\u003eLeak-Free Welsh (Freeze) Plugs for Cummins Engines\u003c\/h1\u003e\n\u003cp\u003eFactory welsh plugs are a known weak point on Cummins engines. Under increased boost and cylinder pressure, they can leak, loosen, or completely blow out—often resulting in coolant loss, downtime, and costly repairs.\u003c\/p\u003e\n\u003cp\u003eOur \u003cstrong\u003eLeak-Free Welsh Plug\u003c\/strong\u003e is engineered to permanently eliminate that problem. Precision-machined from billet materials and supplied with premium sealing hardware, it provides a robust, serviceable solution for \u003cstrong\u003e4BT, 12 Valve 6BT, 24 Valve ISB, and 6.7L Cummins\u003c\/strong\u003e engines.\u003c\/p\u003e\n\u003ch2\u003eHow Many Plugs Do I Need?\u003c\/h2\u003e\n\u003cp\u003eEach purchase includes \u003cstrong\u003eone complete Welsh Plug assembly\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequired quantity per engine:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e4BT Cummins\u003c\/strong\u003e → \u003cstrong\u003e1 Plug\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e24 Valve ISB \/ 6.7L Cummins\u003c\/strong\u003e → \u003cstrong\u003e2 Plugs\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e12 Valve 6BT Cummins\u003c\/strong\u003e → \u003cstrong\u003e3 Plugs\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease ensure you order the correct quantity for your engine.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Choose EPC Leak-Free Welsh Plugs?\u003c\/h2\u003e\n\u003cp\u003e✅ \u003cstrong\u003eBillet Construction\u003c\/strong\u003e\u003cbr\u003ePrecision-machined for maximum strength, durability, and long-term reliability.\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003ePremium Sealing System\u003c\/strong\u003e\u003cbr\u003eSupplied with copper sealing washers and high-temperature Viton O-rings for exceptional sealing performance.\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eBuilt for High-Boost Applications\u003c\/strong\u003e\u003cbr\u003eDesigned to withstand the pressures that commonly cause factory welsh plugs to fail.\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eCorrosion-Resistant Hardware\u003c\/strong\u003e\u003cbr\u003eIncludes premium stainless steel hardware for long service life in harsh operating conditions.\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eServiceable Design\u003c\/strong\u003e\u003cbr\u003eUnlike factory welsh plugs, our design can be removed, inspected, and reinstalled when required.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat's Included?\u003c\/h2\u003e\n\u003cp\u003eEach Welsh Plug includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e6061 Billet Leak-Free Welsh (Freeze) Plug\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e316 Stainless Steel Coolant Gallery Bar\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCopper Sealing Washers\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Temperature Viton O-Ring\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStainless Steel Fastening Hardware\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003eWhether you're building a high-horsepower street truck, competition vehicle, tow rig, or dependable workhorse, EPC Leak-Free Welsh Plugs provide the confidence and reliability your Cummins deserves.\u003c\/p\u003e\n\u003ch3\u003eLeak-Free for Life.\u003c\/h3\u003e\n\u003cp\u003eA strong Shopify addition would be a bold callout immediately under the title:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ This listing is for ONE Welsh (Freeze) Plug. Most engines require multiple plugs. See the quantity guide below before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Engineering Performance Concepts","offers":[{"title":"blue","offer_id":67294149836845,"sku":"BWPBU","price":69.99,"currency_code":"USD","in_stock":true},{"title":"black","offer_id":67294149869613,"sku":"BWPBK","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/2459\/9853\/files\/WhatsApp_Image_2026-05-22_at_9.50.12_AM.jpg?v=1786334918","url":"https:\/\/epcna.com\/products\/billet-welsh-plug-kits","provider":"EPC USA","version":"1.0","type":"link"}