GMC Sierra 3500HD Oil Pan - Wehrli - High Capacity Aluminum - Cat Yellow - 2020–2026. A cast-aluminum, flat-bottom upgrade that improves drain-out and adds capacity.

Built with WCFab x PPE from A356.0‑T6, this pan replaces the stock steel unit whose valley traps dirty oil below the drain. The flat bottom drains completely, and about 2 extra quarts help keep oil cooler, reduce high‑RPM starvation, and extend change intervals. Finished in Cat Yellow and supplied with new fasteners, NPT plug, and a billet stainless magnetic drain plug.

Features

• Flat-bottom, high-capacity design (+~2 qt)
• A356.0‑T6 cast aluminum
• Unshrouded pickup for stable pressure
• Thick-wall construction for drill/tap mods
• 1/8 in NPT accessory port
• Includes hardware, NPT plug, magnetic drain plug

Have questions or planning a build? Call our Austin, TX or Los Angeles, CA teams—we offer installation and customization at both locations. Austin: 512-982-9393 (TX) | Los Angeles: 562-981-6800 (CA)

If you are considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov