Guys:- I'm looking for some help finding part numbers for a coolant fan switch for a 1989 350 L98 TPI. It's the one located on the passenger side cylinder head between #6 and #8. It's the one used on cars with dual fans, to control the secondary cooling fan. The problem is I'm in the UK and really need a GM / AC Delco part number or a similar aftermarket one. Basically so I can source it quickly over here. Any help would be much appreciated!

I have been searching but haven't found what I'm looking for....

This link tells of GP Sorenson part numbers for various switches with different temp thresholds:-
http://www.thirdgen.org/techbb2/show...AN+SWITCH+part

I believe the part from NAPA is "Echlin Ignition Coolant Fan Switch
Item#: ECHFS112 Price: $ 15.49" on this link:-http://www.napaonline.com/cgi-bin/ncommerce3/ExecMacro/NAPAonline/search_results_product_detail.d2w/report?prrfnbr=15591679&prmenbr=5806

If you are looking for a lower temp fan switch another option is an adjustable switch. Permacool, Painless, Flex a Lite, and Summit all offer either lower temp or adjustable fan switches and installation is a breeze.

Cooling fan switch located passenger side of engine below exhaust header between cylinders 4 & 6; Wells part #SW502.

AC Delco #154373 Which also cross references to #10045782

Here is a link to a Picture of it http://www.rockauto.com/ref/ACDelco/15-4373.jpg

Now if you need more info on this Go to https://www.rockauto.com/applet3.html then go down and click CHEVROLET then Click1989 then click on CAMARO then Click on 5.0L 305 V8 MFI Then Click On Electrical-Switch & Relay Then Click on Raditor Fan Temp Switch. I find Rock Auto as a very Very hand part# cross refrence Very Very Often. Hope I helped.

Just my .02

Many thanks for all the help guys!

Or different temperatures:

02-4026 Hypertech Cool Fan Switch [cuts on at 176, off at 166 degrees F] $39.99

02-4028 Hypertech Cool Fan Switch [cuts on at 200, off at 185 degrees F] $39.99

Jet Summit P# JET-60600 on at 200* off at 185* $38.69


Robert

Or save some money and buy a Coolant Fan Switch for a 1987 Buick Grand National it comes on at 200 of at 180 IIRC

3053190 SWITCH

At least thats what Grumpy said the P/N was...

Mine comes on at 210 off at 200, or at least thats what my CTS is showing on mine scans.

Thanks again for all the help guys!

I justed wanted to let you all know of other interchangeable part numbers for this piece:-

AC Delco 15-4229
B/W TFS1
STD TS-147
Niehoff DR137S
Echlin FS110

That ACdelco part you have listed, what are the specs on it??? When does it turn on, and when does it turn off?? I desperately need a new fan switch and id really like to go with delco parts.

Also, does anyone have the G/N fan switch ac delco part # and will that fit into a 1992 z28 w/ the Lb9????

Hate to bring a post back from the dead here, but do these part numbers cross reference with the 3053190 Grand National switch, or something else?

Roostmeyer posted the part number for the Grand National 200* switch and yes its a direct bolt in for our f-bodies.

Thanks, I was wondering if those were the cross reference numbers for it though as the parts guys around here aren't the greatest.

Is the 203' GN switch the lowest on-setting factory switch? I'd rather not get into aftermarket replacements that are hard to find around here.

OLD I KNOW.

Do you think the hypertech 4026 (176 on, 166 off) is too cold for a stock lb9?

Otherwise i might go to the part store tomarrow and get the Grand national switch (210 on, 200 off).

Any opinions welcome!

I hope so because I just ordered one from TPI Parts. I think it probably would because when I sent my order forms to the person who just burnt a custom PROM chip for me I mentioned I intended to use this switch and asked that the primary fan on/off settings be set to work with this switch.

Its too cold with a stock 195* thermostat. The fan would run all the time. You'd need a 160* or at most a 180* thermostat.

I have a Mr. Gasket high flow 160*F thermostat. Which was one of the questions the PROM programmer wanted to know.