{"product_id":"elring-355-940-engine-oil-dipstick-tube-seal","title":"Elring 355.940 Engine Oil Dipstick Tube Seal","description":"\u003ch2\u003eEngine Oil Dipstick Tube Seal for GM HD Trucks\u003c\/h2\u003e\u003cp\u003eElring 355.940 is an engine oil dipstick tube seal made as an FPM O-ring for a precise sealing fit. With its 7.59 mm inner diameter, 12.83 mm outer diameter, and 2.62 mm thickness, it is built for engine-side sealing applications on select Chevrolet Silverado HD and GMC Sierra HD models.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine oil dipstick tube seal in O-ring shape\u003c\/li\u003e\n\u003cli\u003eFPM (fluoride rubber) material for oil-resistant sealing performance\u003c\/li\u003e\n\u003cli\u003e7.59 mm inner diameter, 12.83 mm outer diameter, 2.62 mm thickness\u003c\/li\u003e\n\u003cli\u003eDirect-fit sealing component for engine-side applications\u003c\/li\u003e\n\u003cli\u003eElring part number 355.940 for accurate ordering and replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eElring 355.940 is a replacement engine oil dipstick tube seal engineered to maintain a tight seal where the dipstick tube enters the engine. The FPM rubber construction is selected for sealing in oil-exposed engine environments, while the O-ring profile and measured dimensions help support a proper fit during service. This part is listed for 2016 Chevrolet Silverado 2500 HD, 2016 Chevrolet Silverado 3500 HD, 2017-2019 Chevrolet Silverado 2500 HD, 2017-2019 Chevrolet Silverado 3500 HD, 2023 Chevrolet Silverado 2500 HD, 2017-2019 GMC Sierra 2500 HD, 2017-2019 GMC Sierra 3500 HD, and 2023 GMC Sierra 3500 HD. If you are replacing a leaking dipstick tube seal on a Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, or another listed HD truck, Elring 355.940 provides the correct sealing geometry for the application. This part cross-references GM OE 12676951 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat This Seal Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil seepage around the dipstick tube base\u003c\/li\u003e\n\u003cli\u003eLoss of sealing at the engine-side dipstick tube connection\u003c\/li\u003e\n\u003cli\u003eContamination entering through a worn or hardened seal\u003c\/li\u003e\n\u003cli\u003eService issues caused by a flattened, cracked, or oil-swollen O-ring\u003c\/li\u003e\n\u003cli\u003eRepeat leaks after dipstick tube or engine service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm the seal dimensions and vehicle application before installation. Clean the sealing surfaces on the engine and dipstick tube, then inspect the tube for wear or damage that could affect sealing. Lubricate the new O-ring with clean engine oil during assembly to help prevent pinching or twisting. For fitment verification, match the vehicle to the listed applications for Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD before service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eElring manufactures sealing components for engine service applications, and this seal is specified with exact dimensional data to support accurate replacement selection. Part number 355.940 is identified for the listed GM HD truck applications and is suitable for engine-side dipstick tube sealing service.\u003c\/p\u003e","brand":"Elring","offers":[{"title":"Default Title","offer_id":52954960658613,"sku":"DTWD-355.940","price":15.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/EL_355940_Fro.jpg?v=1786344949","url":"https:\/\/www.partcatalog.com\/products\/elring-355-940-engine-oil-dipstick-tube-seal","provider":"PartCatalog","version":"1.0","type":"link"}