This cylinder head 970313483 suitable for Nanni Diesel N3.21 and 3.75HE marine diesel engines. This version is the old type cylinder head , identified by the 3 valve cover mounting bolts located on top of the valve cover . Suitable for engine serial numbers up to KTC08050772 . Important: A newer version is also available with 4 mounting bolts positioned around the valve cover instead of on top . Please compare your existing cylinder head or engine serial number before ordering. Suitable for: Nanni Diesel: 3.75HE, N3.21 Beta Marine: Beta 20, BD722 Fischer Panda: Panda 14000NE, Panda PMS 14000 If unsure about compatibility, contact us and we will help verify the correct version for your engine.
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