DescriptionSOLD INDIVIDUALLY. CHE Precision stocks a limited amount of B5 seats -with that being said, we can custom make anything – call us at 805-499-8885 to get more info!Our part number is in the following format: Outer Diameter (O.D.) – Internal Diameter (I.D.) – Thickness – Material. For example, an 1820-144-375-B5 valve seat has an O.D. of 1.820″, I.D. of 1.440″, and a thickness of 0.375″. Our standard B5 valve seats feature a chamfer that is 0.100″ bigger than the I.D. with a 45° angle.
