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FAST O-Ring 4.1MM Cross Section 7 for LSXR Fuel Injector

This FAST O-Ring features a 4.1mm cross section, designed as a replacement seal for LSXR fuel injectors. It serves as an adapter O-ring to allow LS1 style injectors to fit manifolds made for LS3 injectors, ensuring a secure and leak-free connection critical for engine air intake sealing.

  • 4.1mm cross section diameter
  • High-quality fluoroelastomer material for durability and heat resistance
  • Round cross section shape for optimal sealing
  • Compatible with FAST LSXR fuel injectors and LS1 injector conversions
  • Designed to withstand temperatures from -15°F to 400°F

This product has not yet been assigned to any vehicle. We are working to ensure that this changes as soon as possible. Please contact us if you have any questions.

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