{"product_id":"atp-parts-to-4-automatic-transmission-oil-pump-seal","title":"ATP Parts TO-4 Automatic Transmission Oil Pump Seal - Front or Outer","description":"\u003ch2\u003eAutomatic Transmission Oil Pump Seal for Chrysler and Dodge\u003c\/h2\u003e\u003cp\u003eATP Parts TO-4 is an automatic transmission oil pump seal made for exact-fit replacement in a wide range of Chrysler, Dodge, Jeep, Plymouth, and Mitsubishi applications. With precise dimensions and application-specific fitment, it supports a proper seal at the impeller hub position in many front-wheel-drive and rear-wheel-drive transmissions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic transmission oil pump seal for the impeller hub position\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.6875 in.\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.4375 in.\u003c\/li\u003e\n\u003cli\u003eThickness: 0.375 in.\u003c\/li\u003e\n\u003cli\u003eExact-fit replacement from ATP Parts\u003c\/li\u003e\n\u003cli\u003ePart number: TO-4\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eATP Parts TO-4 is built as a direct replacement transmission seal for vehicles across the Chrysler, Dodge, Jeep, Plymouth, and Mitsubishi lineup. ATP Transmission Seals and Gaskets are engineered as exact-fit replacement parts, helping restore the sealing surface at the automatic transmission oil pump and impeller hub area. This part cross-references National 331228H and Wix 33081 for the same application. Common search terms for this seal include Chrysler 300 transmission oil pump seal, Dodge Ram 1500 automatic transmission seal, and Jeep Wrangler impeller hub seal. The TO-4 part number is also used when sourcing a replacement for multiple transmission families and model years.\u003c\/p\u003e\u003ch2\u003eWhat This Part Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTransmission fluid leakage at the oil pump seal area\u003c\/li\u003e\n\u003cli\u003eSeal wear at the impeller hub position\u003c\/li\u003e\n\u003cli\u003eFluid loss that can affect transmission operation\u003c\/li\u003e\n\u003cli\u003eService needs during transmission rebuild or overhaul\u003c\/li\u003e\n\u003cli\u003eReplacement of a damaged or hardened pump seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify transmission code, model year, and seal position before installation. This seal is listed for the impeller hub position, with some applications noting front or outer placement. Confirm the seal dimensions against the original part and inspect the pump bore and hub surface for wear, scoring, or contamination before assembly. Clean mating surfaces thoroughly and install using proper transmission service procedures.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eATP Parts supplies transmission seals and gaskets as exact-fit replacement components for service work where dimensional accuracy matters. The TO-4 is specified with defined inside diameter, outside diameter, and thickness measurements to support correct fitment across listed applications.\u003c\/p\u003e","brand":"ATP Parts","offers":[{"title":"Default Title","offer_id":43385745047733,"sku":"BBFB-TO-4","price":14.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/AT_TO4_Fro_b9fa3dd8-d12b-42cc-929f-70b36625afcf.jpg?v=1774704611","url":"https:\/\/www.partcatalog.com\/products\/atp-parts-to-4-automatic-transmission-oil-pump-seal","provider":"PartCatalog","version":"1.0","type":"link"}