Rebuilding any engine requires new gaskets. At this low price you can afford to buy gaskets made to usual standards, rather than the inferior items available elsewhere. This superb horizontally opposed six cylinder engine is worth every cent spent!
Other high quality gaskets with the same model code number you may wish to order at the same time:
11351MN5651
12251MN5004
11391MN5650
19226MN5000
High quality materials combined with tight manufacturing tolerances. Allows the best items to be used at the lowest possible prices. Avoids the uncertainty of using cheaply made inferior items.