{"product_id":"transmission-oil-pan-gasket-gmt400","title":"Transmission Oil Pan Gasket - GMT400","description":"\u003cp\u003eTransmission oil pan gasket for the 1988 to 1998 C\/K (GMT400) with the 4L60E or 700R4 automatic transmission.\u003c\/p\u003e\u003ch3\u003ePart numbers\u003c\/h3\u003e\u003cp\u003eGM Genuine Parts 8654779.\u003c\/p\u003e\u003ch3\u003eFits\u003c\/h3\u003e\u003cp\u003e1988 to 1998, automatic transmission only. Not used on manual transmission trucks.\u003c\/p\u003e\u003ch3\u003eWhy it matters\u003c\/h3\u003e\u003cp\u003eA common leak point at the transmission pan. The gasket hardens with heat and age, and a seep here is often noticed as fluid spots under the centre of the truck. Usually replaced alongside the filter at service.\u003c\/p\u003e\u003ch3\u003eWhat you get\u003c\/h3\u003e\u003cp\u003eOne transmission oil pan gasket. Brand GM Genuine Parts.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eGive us your VIN if you're not certain on fitment, we'll check it before anything ships.\u003c\/em\u003e\u003c\/p\u003e","brand":"GM Genuine Parts","offers":[{"title":"Default Title","offer_id":49756209643770,"sku":"OBSAE-GMT4-00037","price":439.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/5131\/8266\/files\/Screenshot2026-07-26145632.png?v=1785063860","url":"https:\/\/obscureparts.com\/products\/transmission-oil-pan-gasket-gmt400","provider":"Obscure Parts","version":"1.0","type":"link"}