These are the Radium Engineering 26mm Machined Aluminum Injector Seats that are used in Radium's fuel rails. These are required when converting the OEM fuel injector to aftermarket fuel injectors. They simply press-fit into the intake manifold / TGV injector ports with no modifications required. Using the included FKM O-ring, they seal into the machined injector counterbore preventing vacuum or boost leaks. The injector seat bores are designed to be used with a common 14mm lower injector O-ring. 

Radium Engineering Machined Aluminum Injector Seats 26mm

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SPECS:

• CNC-machined6061 aluminum construction
• 26mm 4-cylinder profile
• laster-etched logo
• Anodized black finish
• These will be used to convert side feed injectors to top feed injectors
• FKM O-rings
• Available for those of you who need direct replacements
• Designed to be used with Radium Engineering's fuel rails
• Required when converting the OEM fuel injector to aftermarket fuel injectors
• The FKS O-rings seal into the machined injector counterbore preventing vacuum or boost leaks
• Designed to be used with a common 14mm lower injector O-ring
• Sols as a set of (4) injector seats