Suzuki Wagon R Manual page 3896

ENGINE MECHANICAL (Z10XEP AND Z12XEP ENGINES) 6A4-69
3) Install main bearings (3) and main bearings (with thrust
bearing) (4) to cylinder block and lower crankcase with align-
ing tab (1) with gap (2).
NOTE:
Make sure that two halves are painted in the same color.
[A]: For Z12EXP engine
[B]: For Z10EXP engine
4) Install crankshaft to cylinder block.
NOTE:
Coat crankshaft journal with engine oil.