{"product_id":"ppe-heavy-duty-differential-cover-raw-138051000-2001-2019-6-6l-duramax-lb7-lly-lbz-lmm-lml-l5p-2003-2018-5-9l-6-7l-cummins-aam-11-5","title":"PPE HEAVY DUTY DIFFERENTIAL COVER - RAW  138051000 | 2001-2019 6.6L Duramax LB7\/LLY\/LBZ\/LMM\/LML\/L5P \u0026 2003-2018 5.9L\/6.7L Cummins (AAM 11.5\")","description":"\u003cp\u003eProtect your differential and improve thermal performance with the PPE 138051000 Heavy-Duty Differential Cover. Manufactured from premium A356.0-T6 heat-treated cast aluminum, this heavy-duty cover increases fluid capacity while improving heat dissipation to help extend the life of gears, bearings, and limited-slip components in demanding towing, performance, and off-road applications.\u003c\/p\u003e\n\u003cp\u003eDesigned for both strength and efficiency, the cover features half-inch external cooling fins and precision-cast internal windage scrapers that work together to reduce fluid aeration, minimize heat buildup, and improve lubricant distribution throughout the differential. Cast-in gussets provide additional housing rigidity, while magnetic stainless steel fill and drain plugs capture harmful metal particles to help protect internal components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRaw cast aluminum finish\u003c\/li\u003e\n\u003cli\u003ePremium A356.0-T6 heat-treated cast aluminum construction\u003c\/li\u003e\n\u003cli\u003eIncreases differential fluid capacity by approximately 0.63 quart\u003c\/li\u003e\n\u003cli\u003eHalf-inch external cooling fins improve heat dissipation\u003c\/li\u003e\n\u003cli\u003eInternal windage scrapers reduce fluid churning and aeration\u003c\/li\u003e\n\u003cli\u003eHelps lower differential operating temperatures\u003c\/li\u003e\n\u003cli\u003eCast-in gussets increase housing rigidity and flange support\u003c\/li\u003e\n\u003cli\u003ePrecision-cast using permanent steel molds for excellent dimensional accuracy\u003c\/li\u003e\n\u003cli\u003e304 stainless steel fill and drain plugs\u003c\/li\u003e\n\u003cli\u003eHigh-temperature neodymium magnetic plugs capture ferrous debris\u003c\/li\u003e\n\u003cli\u003eViton O-rings provide reliable sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits only vehicles equipped with the AAM 14-bolt 11.5-inch rear axle.\u003c\/li\u003e\n\u003cli\u003eGas-powered trucks must be verified to have the 11.5-inch differential before ordering.\u003c\/li\u003e\n\u003cli\u003eFor Ram applications, fits 2013 and newer diesel trucks equipped with rear leaf spring suspension only.\u003c\/li\u003e\n\u003cli\u003eNot compatible with rear coil spring suspension models due to clearance limitations.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":52631980015899,"sku":"138051000","price":287.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/5757\/3147\/files\/Screenshot2026-07-20at1.29.46PM.png?v=1784575887","url":"https:\/\/wwmperformance.com\/products\/ppe-heavy-duty-differential-cover-raw-138051000-2001-2019-6-6l-duramax-lb7-lly-lbz-lmm-lml-l5p-2003-2018-5-9l-6-7l-cummins-aam-11-5","provider":"WWM Performance","version":"1.0","type":"link"}