Collection: Auto - Manual Gasket

Stop fluid leaks and protect your transmission's internal components with our selection of Auto Manual Gasketcomponents. At DIY Customs, we provide high-durability manual transmission housing gaskets, specialized shift tower base gaskets, durable transfer case gaskets, and heavy-duty inspection plate seals designed for a perfect fit. Whether you are resealing a classic gearbox during a routine service, replacing a worn shift cover gasket to stop oil weeping, or performing a complete drivetrain rebuild, our professional-grade hardware offers the oil resistance and thermal stability you need at unbeatable prices. From specialized PTO cover gaskets to direct-fit seals for popular Tremec, BorgWarner, and NV-series transmissions, we carry the essential gear for every manual drivetrain. Don't see the specific gasket material (paper/rubber/MLS), bolt pattern, or specialized seal for your transmission? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!