2004.5-2005 Silverado & Sierra 2500 & 3500 Duramax LLY Transmission Pans

The stock transmission pan on you Duramax LLY does the job of keeping your truck's transmission fluid from spilling all over the ground, but that's basically it. Tier One's aftermarket deep transmission pans for 2004.5-2005 Silverado & Sierra 2500 & 3500 Duramax not only keep your fluid inside your transmission, they also help improve your transmission's lubrication and reduce your transmission temperatures. Each of these Duramax LLY transmission pans feature a deep-sump design and are made out of cast aluminum which gives you the one-two punch of increasing your transmission's fluid capacity and improving its heat dissipation which both help increase your transmission's lifespan. These transmission pans come with built-in drain plugs for easy fluid changes, and many also come with an additional NPT port that allows you to run a temperature sensor for an aftermarket transmission temperature gauge. Make sure you also check out our 2004.5-2005 Duramax LLY Transmission Coolers or our 2004.5-2005 Duramax LLY Valve Bodies!