Welcome to WirthCo

WirthCo Engineering, Inc. is entering our fourth decade as a prime manufacturer of practical products for making life easier and safer - at home, in the workplace, on the road, in the campground, and on the water. We are grateful for valued employees and customers and we are dedicated to continuing growth based upon integrity and service. We are also proud of our heritage of providing innovative quality products.

Battery Doctor Products


WirthCo’s Battery Doctor® branded battery accessories - your source for a complete line of battery disconnects, battery switches, battery chargers, fuse holders, circuit accessories, solar chargers and maintainers and other battery accessories. We offer our products in bulk, or in attractive retail packaging that looks great on your shelves! Please call us if you have a question -- or simply request more information online! As always, private branding is avalible.

Funnel King Products


WirthCo’s Funnel King® brand has a wide variety of Galvanized and Plastic Fluid Control Items. We specialize distribution and marketing of heavy-duty funnels and industrial funnels, oil drum funnels, plastic measuring containers, and other fluid control products.