Collection: Auto - Marine

Equip your vehicle for both the road and the water with our selection of Auto Marine components. At DIY Customs, we provide high-durability marine-grade electrical connectors, specialized waterproof lighting, durable corrosion-resistant hardware, and heavy-duty battery management systems designed for a perfect fit. Whether you are outfitting a rugged off-road rig with weather-sealed switches, upgrading your boat’s audio and navigation system with shielded wiring, or performing essential maintenance on a trailer with marine-certified components, our professional-grade hardware offers the reliability and environmental protection you need at unbeatable prices. From specialized heat-shrink terminals to direct-fit mounting solutions for land and sea applications, we carry the essential gear for every dual-purpose project. Don't see the specific amperage rating, IP-waterproof grade, or specialized hardware for your setup? 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!