The Fleece Stainless Steel Fuel Supply Tube Nuts (FPE-CUMM-SSFTN) are a high-quality upgrade designed for 2003–2022 Cummins 5.9L and 6.7L diesel engines. Engineered to replace the factory fuel tube nuts, these durable stainless steel fittings offer superior corrosion resistance and long-term reliability, especially in high-performance or harsh operating environments. Precision-machined for a perfect fit, they ensure a secure and leak-free connection between the fuel supply tubes and the injector bodies. Ideal for enthusiasts and professionals alike, these tube nuts are a smart investment for maintaining optimal fuel system performance in your Cummins-powered truck.
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