Dorman 264-278 Engine Oil Pan - Upper

Dorman 264-278 Engine Oil Pan

Dorman 264-278 is a direct replacement engine oil pan for select Lexus applications, built to match the original equipment pan shape and mounting points. It is made from aluminum and includes a drain plug for service-ready installation on the listed vehicles.

Key Features

• Aluminum construction with a natural finish
• Precision-engineered replacement for the OE oil pan profile
• Center sump, wet sump design
• Drain plug included
• 12 bolt holes for secure mounting
• 6.7 capacity with 22.062 in. length, 18.312 in. maximum width, and 4.187 in. depth
• No oil level sensor port, dipstick port, gasket or seal, or installation hardware included

Fitment

• Fits 2013-2018 Lexus GS450h, Upper
• Fits 2007-2011 Lexus GS450h, Upper
• Fits 2006-2017 Lexus IS350, Upper
• Fits 2015-2017 Lexus RC350, Upper
• Fits 2013-2015 Lexus GS350, Upper
• Fits 2007-2011 Lexus GS350, Upper
• Fits 2006-2015 Lexus IS250, Upper
• Fits 2006 Lexus GS300, Upper

Detailed Description

This Dorman oil pan is built for Lexus GS450h, GS350, GS300, IS350, IS250, and RC350 applications listed above, including upper-position fitments across multiple model years. Part number 264-278 follows the original equipment pan layout to support proper sealing, oil retention, and service access on the engine.

This part cross-references Spectra Premium TOP74A for the same application.

Common Repair Issues

• Oil pan leaks from a damaged or corroded pan
• Oil seepage around the drain area
• Cracked or warped pan surfaces that affect sealing
• Service problems caused by a missing or damaged drain plug
• Replacement needs after impact or underbody damage

Installation Notes and Tips

Verify the upper-position fitment and compare the pan dimensions, bolt-hole count, and sump location before installation. Transfer any required components not included with the pan, and install with the correct gasket or seal specified for the vehicle. Clean the mating surfaces thoroughly and inspect the engine block for damage before tightening fasteners to specification.

Quality Assurance

Dorman 264-278 is engineered as an OE-style replacement oil pan for specific Lexus GS450h, GS350, GS300, IS350, IS250, and RC350 vehicles. Its aluminum construction and direct-fit design support a proper replacement for the original pan on the listed applications.