{"product_id":"atp-parts-so-21-automatic-transmission-oil-pump-o-ring","title":"ATP Parts SO-21 Automatic Transmission Oil Pump O-Ring - Outer","description":"\u003ch2\u003eReliable Automatic Transmission Oil Pump O-Ring for Select Vehicles\u003c\/h2\u003e\u003cp\u003eThe ATP Parts SO-21 Automatic Transmission Oil Pump O-Ring is engineered to provide a precise seal for your transmission oil pump. Designed with an 8.5 mm outside diameter, this O-ring ensures a secure fit and helps maintain optimal transmission performance in a variety of vehicles including Chevrolet, GMC, Cadillac, and Jeep models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExact 8.5 mm outside diameter for proper sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple makes such as Bentley, Buick, and Rolls-Royce\u003c\/li\u003e\n\u003cli\u003ePart number SO-21 for easy identification and replacement\u003c\/li\u003e\n\u003cli\u003eDesigned for automatic transmission oil pump applications\u003c\/li\u003e\n\u003cli\u003eDurable material to withstand transmission fluid exposure and pressure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe SO-21 O-ring from ATP Parts is specifically designed to fit automatic transmission oil pumps across a wide range of vehicles. This includes popular models like the Chevrolet Silverado 1500, GMC Sierra 2500, Cadillac DeVille, Jeep Cherokee, and Buick LeSabre. The 8.5 mm outside diameter ensures a tight seal that prevents fluid leaks and maintains transmission efficiency. This O-ring is part of ATP’s line of transmission gaskets and sealing systems, known for meeting OEM specifications and providing reliable sealing solutions.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transmission fluid leaks from the oil pump\u003c\/li\u003e\n\u003cli\u003eMaintains hydraulic pressure within the automatic transmission\u003c\/li\u003e\n\u003cli\u003eReduces risk of transmission slippage or shifting problems\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature transmission wear due to fluid loss\u003c\/li\u003e\n\u003cli\u003eEnsures consistent transmission performance in high-demand conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the ATP Parts SO-21 O-ring, ensure the transmission oil pump surface is clean and free of debris. Lubricate the O-ring lightly with transmission fluid before installation to prevent damage and ensure a proper seal. Verify the O-ring is seated evenly without twists or pinches. It is recommended to inspect related transmission components for wear or damage during replacement to maintain overall system integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eATP Parts manufactures the SO-21 O-ring to meet or exceed OEM standards for durability and fitment. This part undergoes rigorous quality control to ensure consistent performance in demanding transmission environments. While specific warranty details may vary, ATP Parts typically offers coverage against manufacturing defects, providing confidence in the reliability of this transmission sealing component.\u003c\/p\u003e","brand":"ATP Parts","offers":[{"title":"Default Title","offer_id":43385733578933,"sku":"BBFB-SO-21","price":16.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/AT_SO21_Fro_9fe4267c-3c59-4bf1-8062-1890f8edfa11.jpg?v=1774704586","url":"https:\/\/www.partcatalog.com\/products\/atp-parts-so-21-automatic-transmission-oil-pump-o-ring","provider":"PartCatalog","version":"1.0","type":"link"}