Royze
About Royze: A Family Legacy Built on Carburetor Expertise
Few names in the import carburetor world carry as much history and hands-on credibility as Royze®. Founded in 1952 by Roy Zeigler — affectionately known as "Roy Z," the inspiration behind the brand name — Royze has spent more than seven decades as a dedicated manufacturing wholesaler specializing in carburetor kits and related fuel system components. A small, family-operated business , Royze has never chased scale for its own sake. Instead, the company proudly supplies individual and trade customers in the U.S. and throughout the world, with a dedication to quality, service, and integrity.
Specialists in Import Carburetor Systems
What sets Royze apart is its laser focus on the import carburetor segment. Since 1952, they have specialized in import carburetor kit manufacturing, building deep expertise across a wide roster of European and Japanese carburetor brands. Major product lines include Holley, Carter, Asian, Keihin, Weber, Mikuni, Hitachi, Nikki, Zenith, SU, Solex, Dellorto, plus a world-class roster of quality-focused remanufactured parts. Whether you're restoring a classic British roadster, a vintage German sports car, or a Japanese import from the golden age of carbureted engines, Royze's catalog is built with those vehicles in mind.
The breadth of coverage is remarkable for a single-location operation. In rebuilding, they work on nearly all carburetor brands and types, from gasoline-powered motor vehicles to inboard and outboard marine motors. This makes Royze a genuinely versatile resource for enthusiasts, restoration shops, and professional technicians alike.
Carburetor Repair Kits: The Heart of the Royze Lineup
The cornerstone of the Royze catalog is its extensive range of carburetor repair kits. These rebuild kits are engineered to restore carburetors to like-new performance, supplying the gaskets, needle valves, floats, jets, and seals needed for a thorough overhaul. Because Royze manufactures these kits in-house, they maintain close control over component quality — and they actively appreciate hearing from customers, especially when there is a component they can add to kits to improve them. That feedback-driven approach keeps their kits refined and relevant across decades of use.
Complete Carburetors for Restoration and Replacement
Beyond rebuild supplies, Royze also stocks a selection of carburetors — including hard-to-find new old stock (NOS) units that are a lifeline for restorers working on vehicles where modern replacements simply don't exist. From SU carburetors for MG Midgets to Nikki carbs for Japanese classics, Royze bridges the gap between the vintage vehicle community and the parts supply chain.
Who Royze Sells To
Royze sells to warehouses, jobbers, and technicians, but the depth of their catalog and the accessibility of their operation also make them a practical destination for the dedicated DIY restorer. If your project involves a carbureted import engine — whether it's a weekend cruiser or a dedicated track car — Royze has spent over 70 years building exactly the parts you need.