Trying to see if there's a domestically available water pump for a G13BB-powered JDM Suzuki Jimny Wide. The OEM part number is 1740083815 (which is out of production). This cross-references with available parts in the U.S. from Duralast and NAPA. The G13BB is also the same engine as the one in the Chevrolet Metro/Suzuki Swift with the 1.3-liter engine.


This pic shows the pump from a Metro (Duralast BWP-825). The pump's housing is right, but the holes for the stud spacing on the fan for the flange are too wide. I suppose if I had the Metro/Swift fan it'd be fine. Maybe?


The second pic shows an SJ413 pump vs OEM. You'll note the area with the arrow on the OEM pump isn't present on the SJ413 pump (NAPA TW 41084). However, the spacing for the fan studs is right. However, the Samurai (SJ413) uses the G13BA engine, and the Jimny Wide (JB33W) uses the G13BB. Perhaps that's the issue?

I know GMB (which makes water pumps) gives one part number for both applications (https://am.gmb.co.kr/products/products.asp?parts=wp&pno=GWS-30A), which seems odd.

Any insight on this?

It may be possible to redrill your pulley and fan?  Or, perhaps a Samurai pulley and fan may work? It's probably not a v-belt though... hmm. -Eric

Turns out the leak I have isn't from the water pump, but from the two heater hoses underneath the thermostat housing.

You can see the leak here.

https://youtu.be/VxoMvSYq7Ho?si=4VyeD0QsulbL5ISi

I haven't had a chance to dig into it much, but I assume the hoses go into the thermostat housing? Or is the thermostat part of the intake manifold? I'll have to check later.