EZ Innovation has developed a replacement primer knob for the KOHLER K-2403-2 Primer (typically found on Cessna 150, 172, 175, and 182 aircraft models). 
 
This replacement primer knob is designed for EXPERIMENTAL USE ONLY.
 
Developed from robust Nylon 12 material for long lasting performance and durability!
 
Custom color options are available upon requets (please use our Contact Us page for custom options)!
 
Installation Instructions: 
Remove all broken primer knob material from the primer assembly
Align the flat side of the primer with the flat side of the new primer knob
Firmly press the knob into place
A distinct snapping sound will confirm the new knob is securely positioned and installed
 
Compatibility: 
Not sure if this replacement knob will work with your primer? Check the primer's exposed shaft after removing the old knob. The shaft should have: 
 
A flat side with barbs
A radius on the side section

Please refer to the CAD model and drawing in the pictures above for precise dimensions (to ensure compability). 
 
Enjoy an easy, affordable fix with our high-quality replacement primer knob!