It had been the primary 4B1 engine to get launched, and it absolutely was mounted within the 2.4 L design of the Outlander along with the Delica D:five. The bore is 2mm broader than 4B10 and 4B11, which makes it a extended-stroke engine having a very long stroke. The 4B11 and 4B10 are based on this engine, with lowered bore and stroke.The Mi