AC Delco 213-4793 temp sender or fan switch?
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From: Phoenix, AZ
Car: 92 Camaro RS Coupe
Engine: 305ci (5.0-liter) V8 TBI, E
Transmission: BorgWarner T-5 5-speed
AC Delco 213-4793 temp sender or fan switch?
Hi everyone. I have a 92 Camaro RS, 305 TBI, 5spd. I'm looking for a stock fan switch. I'm getting conflicting info on AC Delco 213-4793. Gmparts and AC Delco websites do not help clarify either. The conflicting information provided for this part number is sensor, sender, and switch? I know it's not a sensor because it's not on a bus or a 5 volt rail. Is this a temp gauge sender or is it a fan switch? Thank you.
Joined: Oct 2020
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From: Franklin, KY near Beech Bend Raceway, Corvette Plant and Museum.
Car: 1992 Pontiac Firebird
Engine: 5.0L L03 TBI
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Re: AC Delco 213-4793 temp sender or fan switch?
The ACDelco Professional 213-4793 is an Engine Coolant Temperature Sending Unit. It's for the coolant temperature gauge in the dash cluster.
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Junior Member
Joined: Mar 2025
Posts: 6
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From: Phoenix, AZ
Car: 92 Camaro RS Coupe
Engine: 305ci (5.0-liter) V8 TBI, E
Transmission: BorgWarner T-5 5-speed
Re: AC Delco 213-4793 temp sender or fan switch?
Thank you. Is there a part number for the Fan Switch? I'm having trouble finding it. Much appreciated.
Joined: Oct 2020
Posts: 1,381
Likes: 653
From: Franklin, KY near Beech Bend Raceway, Corvette Plant and Museum.
Car: 1992 Pontiac Firebird
Engine: 5.0L L03 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: AC Delco 213-4793 temp sender or fan switch?
You're going to need a Standard Motor Products TS-82 Engine Cooling Fan Switch.
I don't know if there is a Genuine GM OEM or ACDelco version of this switch.
That is the stock one that I believe is ON at 229F and OFF at 213F.
You can get a NAPA Echlin ECH FS111 that is ON at 220F and OFF at 204F
Seems NAPA is having a 20% off deal going on now too.
Coolant Fan Switch ECH FS111 | Buy Online - NAPA Auto Parts
I don't know if there is a Genuine GM OEM or ACDelco version of this switch.
That is the stock one that I believe is ON at 229F and OFF at 213F.
You can get a NAPA Echlin ECH FS111 that is ON at 220F and OFF at 204F
Seems NAPA is having a 20% off deal going on now too.
Coolant Fan Switch ECH FS111 | Buy Online - NAPA Auto Parts
Last edited by Airwolfe; Jun 23, 2025 at 12:19 AM.
Thread Starter
Junior Member
Joined: Mar 2025
Posts: 6
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From: Phoenix, AZ
Car: 92 Camaro RS Coupe
Engine: 305ci (5.0-liter) V8 TBI, E
Transmission: BorgWarner T-5 5-speed
Re: AC Delco 213-4793 temp sender or fan switch?
I think you are absolutely right. I can't find a ACDelco to save my life. All I was able to find so far was a Duralast and I'm extremely hesitant about it. Thank you very much. I'll look for the SMP and NAPA part.
Joined: Oct 2020
Posts: 1,381
Likes: 653
From: Franklin, KY near Beech Bend Raceway, Corvette Plant and Museum.
Car: 1992 Pontiac Firebird
Engine: 5.0L L03 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: AC Delco 213-4793 temp sender or fan switch?
Since you live in Phoenix, AZ you might want to look at one of these two fan switches. Rodney has these made by the same company that supplies Napa with their Echlin fan switches. He has 195° ON and 185° OFF and 210° ON and 200° OFF fan switches that will keep your Camaro running cool. The 195° ON and 185° OFF fan switch will require you to get a 180° thermostat for your Camaro.
Lower Temp Radiator Fan Switch | Rodney Dickman Automotive Accessories
Lower Temp Radiator Fan Switch | Rodney Dickman Automotive Accessories
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Junior Member
Joined: Mar 2025
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From: Phoenix, AZ
Car: 92 Camaro RS Coupe
Engine: 305ci (5.0-liter) V8 TBI, E
Transmission: BorgWarner T-5 5-speed
Re: AC Delco 213-4793 temp sender or fan switch?
Thank you for the recommendation. Let me fill in some blanks for full context. I'm putting in an alloyworks 3 core radiator, which includes a 185/175 switch. The radiator comes with dual fans. Additionally, I'm swapping out the thermostat housing with a Dorman housing that allows for a second switch. This is where I'll install and wire in the 185/175 switch. I also purchased an AC Delco 131-84 which if memory serves me right, is a 170F thermostat.
My thought process was to wire in the lower temp switch to the first fan and use the stock switch for the second fan so that I have a dual temp fan setup.
The only thing I haven't decided on is how I was going to run trigger power to the relay yet. Either direct to the battery or to ignition power. I've also considered swapping the two switches, meaning using the 185/175 switch on the stock wiring and the stock switch on the Dorman thermostat housing, in which case, brings in the option to use the stick fan power as a relay power trigger.
This is the vision. I'm completely basing this vision on what I've read throughout the forums and YouTube videos I've watched. I'd love some feedback. Thank you.
My thought process was to wire in the lower temp switch to the first fan and use the stock switch for the second fan so that I have a dual temp fan setup.
The only thing I haven't decided on is how I was going to run trigger power to the relay yet. Either direct to the battery or to ignition power. I've also considered swapping the two switches, meaning using the 185/175 switch on the stock wiring and the stock switch on the Dorman thermostat housing, in which case, brings in the option to use the stick fan power as a relay power trigger.
This is the vision. I'm completely basing this vision on what I've read throughout the forums and YouTube videos I've watched. I'd love some feedback. Thank you.
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
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Transmission: M20
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Re: AC Delco 213-4793 temp sender or fan switch?
Thread Starter
Junior Member
Joined: Mar 2025
Posts: 6
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From: Phoenix, AZ
Car: 92 Camaro RS Coupe
Engine: 305ci (5.0-liter) V8 TBI, E
Transmission: BorgWarner T-5 5-speed
Re: AC Delco 213-4793 temp sender or fan switch?
Joined: Dec 2004
Posts: 16,752
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: AC Delco 213-4793 temp sender or fan switch?
Might see if you could find a wells sw555, I haven’t used anything built to last
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