{"product_id":"2020-2026-3-0l-duramax-9-5-su8-12-bolt-heavy-duty-cast-aluminum-rear-differential-cover-1380514x0","title":"2020-2026 3.0L Duramax 9.5\" SU8 12-Bolt Heavy-Duty Cast Aluminum Rear Differential Cover (1380514X0)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cp\u003ePPE's heavy-duty rear differential cover is built for the AAM 9.5\" 12-bolt rear axle with RPO build code SU8, found under 2020-2026 GM 1500 trucks including the 3.0L Duramax. It is cast from heat-treated A356.0-T6 aluminum, adds 0.57 quart of fluid capacity, and uses half-inch external cooling fins to pull heat out of the gear oil so it holds its viscosity when you tow or haul.\u003c\/p\u003e\n\u003cp\u003eInside, precision-placed windage scrapers keep fluid flowing over the gears without excess churning, which cuts heat buildup, aeration and parasitic loss. The internal scrapers and external fins form a cross-braced structure, and cast-in gussets add support at the housing flange. The fill plug sits at the factory fill height, and both 304 stainless service plugs carry a high-temperature neodymium magnet to catch ferrous wear particles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1380514X0\u003c\/p\u003e\n\u003ch6\u003eFeatures\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eHeat-treated A356.0-T6 cast aluminum, strong and thermally conductive\u003c\/li\u003e\n\u003cli\u003ePrecision-cast in permanent steel molds for a smooth, consistent finish and accurate fit\u003c\/li\u003e\n\u003cli\u003eAdds 0.57 quart of fluid capacity for more thermal headroom\u003c\/li\u003e\n\u003cli\u003eHalf-inch external fins improve heat dissipation and impact resistance\u003c\/li\u003e\n\u003cli\u003eInternal windage scrapers reduce churning, heat, fluid aeration and power loss\u003c\/li\u003e\n\u003cli\u003eFins and scrapers combine into a cross-braced structure\u003c\/li\u003e\n\u003cli\u003eCast-in gussets support the differential housing flange\u003c\/li\u003e\n\u003cli\u003e304 stainless drain and fill plugs with neodymium magnets and Viton O-rings\u003c\/li\u003e\n\u003cli\u003eAvailable in Raw, Brushed and Black finishes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eNotes\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eFits AAM 9.5\" rear axles with RPO build code SU8 only. Check the Service Parts Identification label in the glove box before ordering.\u003c\/li\u003e\n\u003cli\u003eNot compatible with SU7 axles. For SU7, see the \u003ca href=\"\/products\/2014-2023-3-0l-duramax-9-5-9-75-12-heavy-duty-cast-aluminum-rear-differential-cover-138051210\" style=\"color: #8a051a;\"\u003eGM 9.5\"\/9.76\" Rear Differential Cover (138051200)\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eOEM P\/N reference: GM 85586188 (replaces 23243722, 84553988).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eInstallation\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2084\/8209\/files\/1380514X0_Install_Guide.pdf?v=1790709184\" style=\"color: #8a051a;\"\u003e\u003cspan style=\"text-decoration: underline; color: #8a051a;\"\u003e\u003cstrong\u003eClick Here\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"PPE","offers":[{"title":"Raw","offer_id":67608174362992,"sku":"138051400","price":357.83,"currency_code":"CAD","in_stock":true},{"title":"Brushed","offer_id":67608174395760,"sku":"138051410","price":383.39,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":67608174428528,"sku":"138051420","price":383.39,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2084\/8209\/files\/Differential-Cover-Rear_138051400_01.jpg?v=1790709235","url":"https:\/\/www.dirtydieselcustom.ca\/products\/2020-2026-3-0l-duramax-9-5-su8-12-bolt-heavy-duty-cast-aluminum-rear-differential-cover-1380514x0","provider":"Dirty Diesel Customs","version":"1.0","type":"link"}