Rick's Free Auto Repair Advice

A Pillar

Where is the A pillar, B pillar, C pillar and D pillar?

The A pillar in a vehicle supports the roof and supports the windshield. The B pillar is the support for the rear door hinges and supports the roof. The C pillar and D pillar support the roof  and the the rear windows or rear hatch.

Sunroof drains route through the left and right A pillars and the left and right B pillars to drain water to the ground.

A pillar

A pillar, B pillar, C pillar and D pillar

©, 2018 Rick Muscoplat

Posted on by Rick Muscoplat

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