{"product_id":"national-200-4r-front-pump-seal","title":"National 200-4R Front Pump Seal","description":"\u003cp\u003eQuality front pump oil seal for the GM 200-4R four-speed overdrive automatic transmission. Manufactured by National to OEM specifications for leak-free sealing in all 200-4R applications. The 200-4R requires proper sealing to maintain hydraulic pressure for correct shift timing and converter lockup operation.\u003c\/p\u003e\u003cp\u003eFits 1981-1990 Buick Grand National, Regal, GNX, T-Type, Corvette, Monte Carlo SS, and other GM vehicles. Essential for any 200-4R rebuild or maintenance service.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":50803785597175,"sku":null,"price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6591\/1287\/files\/ph-gaskets-and-seals_7b0f940f-2b2b-45a4-b62c-ce13e11693fa.jpg?v=1780071065","url":"https:\/\/coretransmissionparts.com\/products\/national-200-4r-front-pump-seal","provider":"CoreTransmissionParts.com","version":"1.0","type":"link"}