{"product_id":"copper-cylinder-head-gasket-fits-john-deere-a-tractor-replaces-a404r","title":"Copper Cylinder Head Gasket fits John Deere A Tractor | Replaces A404R","description":"Copper Clad Cylinder Head Gasket\u003cbr\u003e\u003cbr\u003eFits John Deere A series Tractors up to SN: 487999, (AO, AR up to SN: 259999)\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Copper-Clad Construction\u003c\/strong\u003e – Delivers superior heat conductivity to pull heat away from the combustion chamber, helping prevent hot spots, warping, and premature gasket failure in hard-working John Deere engines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExceptional Strength \u0026amp; Durability\u003c\/strong\u003e – Copper’s high tensile strength and elasticity stand up to high cylinder pressures and thermal cycling far better than standard composite gaskets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMalleable for a Tight, Reliable Seal\u003c\/strong\u003e – Soft copper conforms to minor surface imperfections on the block and head for excellent combustion sealing and reduced blow-by.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Design\u003c\/strong\u003e – Resists degradation from coolant, oil, and combustion byproducts better than many traditional gasket materials, extending service life in agricultural environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIdeal for Restorations \u0026amp; Heavy-Duty Use\u003c\/strong\u003e – Popular choice for classic John Deere tractors (including many older 2-cylinder models) where long-term reliability and proper sealing matter.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBetter Heat Distribution\u003c\/strong\u003e – Helps maintain more even block and head temperatures for consistent performance and reduced risk of overheating-related issues.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Aftermarket\/Reproduction Part\u003c\/strong\u003e – Built for a precise fit and dependable sealing when properly installed with clean, flat surfaces (recommend checking your specific model\/serial for exact compatibility).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003eReplacement Numbers A404R","brand":"JJ Ag Parts","offers":[{"title":"Default Title","offer_id":47083815305412,"sku":"JJS80040","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/1460\/2180\/files\/mis8290_j1.jpg?v=1792622132","url":"https:\/\/jjagparts.com\/products\/copper-cylinder-head-gasket-fits-john-deere-a-tractor-replaces-a404r","provider":"JJ Ag Parts","version":"1.0","type":"link"}