1998 Protege Engine number

[jojoroxx]

Hi, I am looking ( without success) for the engine number for my car. I want to change the water pump and figured I would do the timing belt at the same time. There are two options for timing belts for my engine (1.5L) and as such I need the engine number to be able to order the correct belt. Does anyone out there know where the engine number for this engine is located?

Thanks, Joe

1998 Mazda Protege
1.5L
Manual Transmission