S&S Diesel Motorsports Fuel Injector

S&S Diesel Motorsports Fuel Injectors: Precision-Engineered Common Rail Performance

When diesel enthusiasts and professional tuners demand the most from their fuel systems, S&S Diesel Motorsports is a name that consistently rises to the top. Headquartered in Seymour, Indiana, the company has built its reputation on one core principle: uncompromising precision in every fuel injector they produce. With management carrying a combined 63 years of diesel fuel injection and engine development experience — much of it earned at OE-level companies like Bosch and Cummins — S&S brings a depth of engineering knowledge that few aftermarket brands can rival.

What Sets S&S Fuel Injectors Apart

S&S Diesel Motorsports fuel injectors are available in both new and fully remanufactured configurations. Whether new-build or reman, every injector is individually calibrated and flow-matched, a process that delivers more consistent fueling, improved drivability, and greater reliability under high fuel pressure compared to factory units. As S&S puts it, their injectors may not be the cheapest, but they regularly outflow the competition for the same claimed size, giving owners more performance per dollar.

Behind each injector is one of the most advanced fuel labs in the industry, featuring custom in-house test benches developed specifically to meet the extreme validation standards required by high-performance common-rail injection. Every unit undergoes precise internal adjustments to optimize both performance and long-term reliability before it leaves the facility.

Platform Coverage & Product Range

S&S injectors span the most popular diesel truck platforms on the road today — Ford Powerstroke, GM/Chevy Duramax, and Dodge Ram Cummins. The lineup is equally broad in its scope of application: stock replacement units deliver OEM-level reliability with improved manufacturing precision, while higher-flow performance variants are engineered specifically for modified turbochargers and elevated boost levels. Flow options range from modest overstock percentages ideal for towing all the way up to extreme over-stock configurations suited for high-horsepower competition builds. For the 6.7L Powerstroke platform in particular, S&S has developed dedicated new (not remanufactured) injectors with optimized nozzle-to-body tolerances.

S&S also offers standalone injector nozzle sets for builders who want to upgrade nozzle flow on a healthy existing set of injector bodies — a cost-effective path to increased fueling capacity without a full injector replacement. The brand's signature TorqueMaster injector line provides a measured performance step-up for daily drivers and tow rigs that need more than stock without crossing into full competition territory.

Backed by Race-Proven Engineering

S&S Diesel Motorsports creates products for both top-level competition and CARB-compliant street use, meaning their injectors are validated across the full spectrum of diesel performance demands. Their engineering approach emphasizes balanced fueling, clean spray patterns, and reliable atomization — the fundamentals of controlled combustion and reduced engine stress. Whether the goal is smoother highway towing, bracket racing, or sled pulling, S&S fuel injectors are built to scale alongside the rest of the build.

Browse the full S&S Diesel Motorsports brand page to explore their complete fuel system lineup, or view all fuel injectors across every brand to compare options for your application.