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United Engine & Machine Co. (UEM Pistons) stands as a testament to American innovation, family legacy, and the pursuit of automotive excellence. With over 100 years in the industry, UEM has consistently delivered high-quality pistons that power engines across the globe. From its humble beginnings in Fresno, California, to becoming a global leader in piston manufacturing, UEM continues to push the boundaries of performance, reliability, and craftsmanship.
A Century of Innovation
Founded in 1922 by Italian immigrant Deuta Sulprizio, Sr., UEM's journey began in a small garage in Fresno, California. Over the decades, the company evolved from a local supplier to a major player in the OEM and aftermarket piston industries. Through four generations, UEM has remained family-owned, preserving the values of innovation and flexibility that have been the cornerstone of its success.
Piston Types and Brands
- ICON Forged Pistons
- Forged Performance for Extreme Applications
- Built for high-performance racing and street applications, ICON pistons are designed to withstand extreme conditions. The forging process enhances strength and durability, making them ideal for high-stress environments. Available in various series, including the FHR and LCAT, ICON pistons are a top choice for those seeking peak performance.
- KB/Keith Black Hypereutectic Pistons
- Cast Performance with High-Silicon Alloy
- KB pistons, crafted from a high-silicon aluminum alloy, offer the perfect balance of strength and weight. These pistons are engineered to improve throttle response and withstand high compression and temperatures. Features like high upper compression-ring locations and spiral-lock retainer grooves make them race-ready right out of the box.
- Silv-O-Lite Pistons
- OEM Replacement Excellence
- For those seeking reliable OE replacement pistons, Silv-O-Lite delivers unmatched quality. UEM’s dedication to manufacturing precision ensures that these pistons meet the exact specifications required for engine rebuilding. With advanced features like diamond machining and anodizing coatings, Silv-O-Lite pistons provide long-lasting performance.
Choosing the Right Piston for Your Engine Selecting the correct piston for your engine involves understanding your vehicle’s requirements and the demands of your driving style. Whether you're building a high-performance race car, a street machine, or restoring an OEM engine, UEM offers a wide range of options:
- Performance Requirements: For high-performance and racing applications, ICON forged pistons are the go-to choice. Their strength and durability make them suitable for extreme conditions.
- Weight and Responsiveness: If lightweight and improved throttle response are priorities, KB/Keith Black hypereutectic pistons are ideal. They offer a great balance of performance and reliability.
- OEM Replacement: For engine rebuilds and OEM replacements, Silv-O-Lite pistons provide the exact specifications and high-quality materials needed for a successful restoration.
UEM Pistons exemplify the blend of tradition and innovation that defines the American automotive industry. With over a century of experience, UEM continues to deliver high-quality, reliable, and performance-driven pistons. Whether you’re a racer, a car enthusiast, or a professional engine builder, UEM has the piston solution for you.
