##  [B-Pillar](/b-pillar) 

  ##  [B-Pillar](https://engineering.quantumdictionary.io/b-pillar-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The vertical structural member located between a vehicle's front and rear door openings (or their equivalents) that helps support roof loads, resists side impact and rollover forces, and commonly provides attachment points for door latches and restraint systems.