{"product_id":"elring-823-620-engine-oil-filler-cap-seal","title":"Elring 823.620 Engine Oil Filler Cap Seal","description":"\u003ch2\u003eEngine Oil Filler Cap Seal for GM Applications\u003c\/h2\u003e\u003cp\u003eElring 823.620 is an engine oil filler cap seal made from HNBR rubber for dependable sealing performance in a wide range of Chevrolet, GMC, Buick, Cadillac, and other GM vehicles. With precise O-ring dimensions and OE-style construction, it helps maintain a secure seal at the oil filler cap and supports cleaner engine operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHNBR (hydrogenated nitrile butadiene rubber) construction for oil-resistant sealing performance\u003c\/li\u003e\n\u003cli\u003eO-ring shape with 28 mm inner diameter, 38.6 mm outer diameter, and 5.3 mm thickness\u003c\/li\u003e\n\u003cli\u003eDirect replacement style for oil filler cap sealing service\u003c\/li\u003e\n\u003cli\u003eElring part number 823.620 for easy identification\u003c\/li\u003e\n\u003cli\u003eCross-reference: GM 12593348 for the same application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Information\u003c\/h2\u003e\u003cp\u003eThis Elring oil filler cap seal is built to restore the sealing surface at the engine oil fill point, where heat and oil exposure can cause original seals to harden, flatten, or leak. The HNBR material is selected for resistance to engine oil and elevated temperatures, while the O-ring profile helps deliver a consistent seal when installed in the correct groove. Elring 823.620 is used across many GM platforms, including Chevrolet Colorado, Chevrolet Silverado 1500, GMC Sierra 1500, Buick Enclave, Cadillac XT5, and related models.\u003c\/p\u003e\u003cp\u003eFor buyers searching by vehicle, this seal is a direct fitment match for applications such as Fits 2004-2025 Chevrolet Colorado, N\/A; Fits 2008-2024 Buick Enclave, N\/A; and Fits 2016-2024 GMC Sierra 1500, N\/A. It also appears in long-running coverage for Chevrolet Malibu, Chevrolet Traverse, GMC Acadia, Cadillac Escalade, and Chevrolet Corvette applications. The part number 823.620 is useful when matching service parts by catalog reference or OE cross-reference.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Seal Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil seepage around the filler cap area\u003c\/li\u003e\n\u003cli\u003eFlattened, cracked, or hardened original seal material\u003c\/li\u003e\n\u003cli\u003eLoss of sealing integrity after heat cycling\u003c\/li\u003e\n\u003cli\u003eOil residue buildup near the engine oil fill opening\u003c\/li\u003e\n\u003cli\u003eService replacement for a worn O-ring seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInspect the oil filler cap groove and mating surface before installation. Remove any old seal residue, dirt, or hardened material so the new O-ring seats evenly. Confirm the seal dimensions match the application before service, and lubricate lightly with clean engine oil if needed to help the seal seat without twisting. Verify the cap closes securely after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eElring manufactures sealing components for engine service applications with attention to fit, material selection, and dimensional accuracy. This seal uses HNBR construction and OE-style sizing to support reliable replacement service on listed GM vehicles.\u003c\/p\u003e","brand":"Elring","offers":[{"title":"Default Title","offer_id":52958131847349,"sku":"DTWD-823.620","price":16.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/EL_823620_Fro.jpg?v=1786425504","url":"https:\/\/www.partcatalog.com\/products\/elring-823-620-engine-oil-filler-cap-seal","provider":"PartCatalog","version":"1.0","type":"link"}