Radium Engineering Nissan 30mm 6 Cylinder Injector Seats

The 2 sizes are based on the intake manifold's inside diameter of each injector counterbore. Below are just a few examples of some popular Nissan engines.

30mm = KA24DE S13/S14, SR20DET S13
25mm = RB25DET, SR20DET S14/S15, SR20VE FWD

All 30mm injector seats are bright-dipped black anodized. All 25mm injector seats are bright-dipped green anodized. The injector seats are CNC machined with a common 14mm bore for the lower injector O-ring.

Features
-CNC machined 6061 aluminum
-Bright dipped anodized
-Laser etched logo
-Viton O-rings

Installation
Thoroughly clean out any dirt or debris found in the intake manifold injector seat bores. Next, lubricate the Radium injector seat O-rings with engine oil. Press the Radium injector seats down firmly into the intake manifold injector ports until fully seated. If necessary, use a small rubber mallet.