[Shazaam]

Just to add to the confusion, here's the engine number decoding from the Owners Manual. So it appears that #2 isn't a US Market engine.


Ducati uses different coding for different markets. Generally the engine number encodes engine displacement, number of valves, cooling type, fueling type and build number.

Examples

SB8 R 000001 US 1994 916
SB8 S 000001 US 1995 916

ZDM 888W4 000001 French 888
ZDM 916W4 000001 Euro, Australian 916
ZDM 916W4B 000001 French 916
ZDM 748W4B 000001 Dutch 748R

ZDM = Ducati, 916 = 916cc capacity, W = water-cooled, 4 = 4 Valves

ZDM 904A2C 000001 means 904 = 904cc A = air-cooled, 2 = 2 valve, C = carburated

 

[Shazaam]

I can not find it online, but exactly what digits does clarify if the engine is from the US

does the UB5 means from US?

Not exactly, UB5 is Ducati's code for the 999 engine type. This three-character code is used for bikes built for the US market (perhaps others). Engines built for the Euro market, for example, start ZDM which is the Ducati manufacturer code.

From the Owners Manual ...