Cast Aluminum Oil Pan 6.6L Duramax

The Spelab oil pan is a high-capacity, cast aluminum upgrade engineered for the 2017-2025 Chevrolet Silverado and GMC Sierra 2500HD/3500HD equipped with the 6.6L Duramax L5P engine. Unlike stock stamped steel pans, this lightweight aluminum design enhances oil temperature control, increases oil capacity by an additional 2 quarts, and provides superior engine protection. Its construction features external cooling fins to increase surface area for more effective heat dissipation, and reinforced internal ribs for improved rigidity and impact resistance, making it suitable for demanding conditions such as heavy-duty towing or off-road excursions. The pan's flat-bottom design ensures complete oil evacuation during changes, preventing sludge buildup. It also includes a magnetic drain plug to capture harmful metal shavings and a 1/8” NPT port for the optional installation of an oil temperature sensor. A reusable fluorine rubber seal and a complete installation kit with gasket and hardware are provided for a direct, bolt-on replacement without requiring modifications. The durable aluminum construction resists rust, deformation, and thermal expansion, ensuring longevity even in harsh environments. This oil pan is designed for direct replacement on 2017–2025 Chevrolet Silverado 2500HD / 3500HD and 2017–2025 GMC Sierra 2500HD / 3500HD models. The product information notes that care should be taken to confirm sufficient clearance during installation, as the added capacity might affect it in some GM 6.6L chassis configurations.