BMW Z4 20i E89 184hp N20B20 2011-2016

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BMW Z4 20i E89 184hp N20B20 2011-2016

BMW Z4 20i E89 184hp N20B20 2011-2016

BMW Z4 20i E89 184hp N20B20 2011-2016 

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BMW Z4 20i E89 184hp N20B20 2011-2016

The BMW Z4 20i E89, 184hp from 2011 to 2016, shares the N20B20 with the other Z4 of the E89 generation. The tri-metal big end bearing set is the part to look at first here.

It comes in ACL RACE without any coating or in KING RACING with the pMaxKote anti-friction coating, which protects the journal on a cold start. Five sizes are listed: standard, standard with the wider HX running clearance, then undersizes of 0.025mm, 0.25mm and 0.50mm, which allows a reground crankshaft to be reused. Part numbers are 4B1584H and CR222GPC.

The page also carries the set of four ZRP forged connecting rods in 4340 steel, supplied with ARP 2000 con rod bolts.