Which Water Pump (3B)?

[LevinBR]

Hello mudders, I'm involved in some pump jeopardy at the moment. I have a Spanish market 3B diesel 1989 BJ-73 which needs a water pump replacement, but I'm not sure which one to order. Mainly, I have found two variations of pumps; one made up until 08/1988 and one made after. My vehicle is a 1989, and I have found that it sits right on the cusp of many mechanical design changes. Here are the pump designs by Toyota;
1) (up until 1988)

2) (after 1988)

Question is, what are the major differences? They look similar with exception of the mounting surface/gasket. Also, if I have option 1, could I upgrade to the redesign of option 2?. Thanks!

 

[dcruiser666]

I think the major difference is that one design will not accept a viscous fan clutch. You should check to see if you have the viscous. I don't think there are any other critical differences, might have different holes to plug etc but I think these will mount the same way.

Not a recommendation to buy from here but these links show the two different pumps in more detail.

Water Pump, 81-88 BJ4# 60 FJ7# B 3B 13BT DSL With Fan Clutch

AISIN Water Pump For Diesel Engine Equipped

www.fjparts.com

Water Pump, 89-90 BJ60 BJ7# 3B Diesel Without Fan Clutch

AISIN Water Pump For Diesel Engine Equipped

www.fjparts.com

 

[LevinBR]

So it looks like my vehicle does have a fan clutch, but all of my technical references indicate that water pumps from 1989 forward are for non-fan clutch equipped vehicles.... This is confusing, as my vehicle is a 1989 model year. Any ideas?

 

[OGBeno]

The part number you need is 16100-59105.

EDIT: Correct PN: 16100-59187

 

[LevinBR]

Thanks @Onur ! My statement about no fan clutch after '88 doesn't seem to be true as I do more research. I also finally found that my production date was 03/1989. As can be seen below, 16100-59105 is for pre-88 models.

So, should I go with 16100-59185 instead?

Thank you all!!

 

[OGBeno]

Thanks @Onur ! My statement about no fan clutch after '88 doesn't seem to be true as I do more research. I also finally found that my production date was 03/1989. As can be seen below, 16100-59105 is for pre-88 models.

View attachment 2191281

So, should I go with 16100-59185 instead?

Thank you all!!

I missed the build issue.

Why didn’t you provide your frame number or VIN to confirm? That will be a better way to figure this out vs talking in months and years.

 

[LevinBR]

I missed the build issue.

Why didn’t you provide your frame number or VIN to confirm? That will be a better way to figure this out vs talking in months and years.

JT1V0BJ7309004331

 

[OGBeno]

JT1V0BJ7309004331

My bad, completely wrong on my side. Will change information to reflect correct information.

Doesn’t help I skipped over the crucial build information! Too much multi-tasking.

16100-59187 is the correct part number.

But you might be able to get away with using -59105 if they are the same Aisin number.

If the gaskets are the same part number then I would suspect the pumps would probably be interchangeable.

I’d contact Cruiser Outfitters in the Utah and go in the Aisin direction.

 

[LevinBR]

My bad, completely wrong on my side. Will change information to reflect correct information.

Doesn’t help I skipped over the crucial build information! Too much multi-tasking.

16100-59187 is the correct part number.

But you might be able to get away with using -59105 if they are the same Aisin number.

If the gaskets are the same part number then I would suspect the pumps would probably be interchangeable.

I’d contact Cruiser Outfitters in the Utah and go in the Aisin direction.

THANK YOU!! And last question (I promise), do the Aisin pumps come with gaskets?

 

[OGBeno]

THANK YOU!! And last question (I promise), do the Aisin pumps come with gaskets?

They should. Sometimes depends on supplier. Lots of schisty counterfeit parts out there.

Support the LC community and buy from a business that supports the 70 series.

 

[cruiseroutfit]

We would love to help you at Cruiser Outfitters. I think I can safely say we stock more diesel water pumps applications in the US than other? Either way we stock 5 different OEM/AISIN 3B/13BT variants. This might help ID yours.

From this thread:

Fan Blade & Clutch Tech for BJ7x with 3B/13BT (A440F & H55F Models)

We've been upping our fan clutch and fan blade offerings the last few years and recently I've been getting a few calls about the 7x variants. I've not spend a TON of time laying out all the year/model applications for all market 70's as it gets a bit cloudy but for the common Canadian spec and...

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