daniboy1_2_3 0 Posted July 19, 2013 Im close to buying a 9a engine but the seller cant locate the engine number on the block. Can anyone tell me where it should be? There is a 2.0 stamp on there. Is there any surefire way of knowing its a 9a engine either visually or by a stamp or number? Thanks. Quote Share this post Link to post Share on other sites
bmwcompact 10 Posted July 19, 2013 (edited) On the front of the block, just above the crankcase breather (cyl 3) theres a machined flat with the no. It not very deeply engraved so is difficult to see. My engine no is 9A130409 so I think all 9As will start with 9A. Edited July 19, 2013 by bmwcompact Quote Share this post Link to post Share on other sites
