Crush washers are a small but crucial part of the fuel system, especially in high horsepower applications,  where high fuel pressures and delivery rates are encountered. They provide a proper seal of the connectors, ensuring reliable performance and mitigating safety hazards related to highly flammable fuel leaks. These washers fit the BLOX Racing 440 LPH fuel pump inlet fittings. Sold in a pair.
*WARNING* It is highly recommended that a qualified mechanic with fuel systems knowledge performs the installation.  Working with fuel and pressurized systems is dangerous and can lead to serious injuries or death.  

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