OE b1803 — Master brake cylinder

What is OE number b1803?

OE (Original Equipment) number b1803 is a manufacturer's reference code for Master brake cylinder used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 3 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE b1803.