Desperately Seeking Temp Sensor Part Numbers
Thread Starter
Junior Member
Joined: Feb 2001
Posts: 62
Likes: 0
From: New Zealand
Car: 86 TransAm
Engine: 360 SBC 4Bolt / Bowtie Heads
Transmission: T5 NWC Manual
Axle/Gears: Torsen T2 / 3.23
Desperately Seeking Temp Sensor Part Numbers
Hi Guys,
I have a carby'd VIN-H system that has 2 sensors located in the top of the thermostat housing... One is for the ECM and the other is for the Gauge. The ECM sensor has a 2 wire mushroom shaped key and the Gauge sensor top has been broken off so I have no idea what it looks like! The ECM sensor uses a 3/8 NPTF while the Gauge sensor is a 1/2 NPTF.
Does anyone have a GM or AC Delco part number for these sensors? I think the ECM sensor is 15326386 but I can't seem to find a number for the Gauge unit. Someone has installed a sensor for the gauge into the head and it reads 40 or 50 Deg low. i.e: It's not the correct one!
Because I live in New Zealand this info and even used parts are impossible to find here. Any help or PIC's most appreciated... Many thanks and kind regards...
Geoff.
I have a carby'd VIN-H system that has 2 sensors located in the top of the thermostat housing... One is for the ECM and the other is for the Gauge. The ECM sensor has a 2 wire mushroom shaped key and the Gauge sensor top has been broken off so I have no idea what it looks like! The ECM sensor uses a 3/8 NPTF while the Gauge sensor is a 1/2 NPTF.
Does anyone have a GM or AC Delco part number for these sensors? I think the ECM sensor is 15326386 but I can't seem to find a number for the Gauge unit. Someone has installed a sensor for the gauge into the head and it reads 40 or 50 Deg low. i.e: It's not the correct one!
Because I live in New Zealand this info and even used parts are impossible to find here. Any help or PIC's most appreciated... Many thanks and kind regards...
Geoff.
Joined: Jul 2000
Posts: 6,522
Likes: 92
From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
On an LG4, the one in the head is for gauge and the one in the t-stat housing is for the ECM. In the t-stat housing there is also a thermal vaccuum switch which operated the EFE valve in the exhaust between a manifold and the headpipe/y-pipe - that's probably what is broken off; it's not necessary.
I'll check back later on this.
I'll check back later on this.
Thread Starter
Junior Member
Joined: Feb 2001
Posts: 62
Likes: 0
From: New Zealand
Car: 86 TransAm
Engine: 360 SBC 4Bolt / Bowtie Heads
Transmission: T5 NWC Manual
Axle/Gears: Torsen T2 / 3.23
Thanks JMD,
Ahhh... OK, that explains the larger than normal thread size (1/2 NPT). I still would like the part number of the gauge sender if anyone has it??? Thanks for your help, If it wasn't for this Forum a lot of us would be 'In the dark' out here... Kind regards...
Geoff.
Ahhh... OK, that explains the larger than normal thread size (1/2 NPT). I still would like the part number of the gauge sender if anyone has it??? Thanks for your help, If it wasn't for this Forum a lot of us would be 'In the dark' out here... Kind regards...
Geoff.
Member
Joined: Jan 2004
Posts: 156
Likes: 0
From: Georgia
Car: 77 El Camino
Engine: 355 Converting to TPI
Transmission: Converting to 4L60/4L60E
Here you go, this is according to Alldata.
Temperature Sensor (Gauge)
Temperature Sending Unit
Switch 25036535 $17.81
Sender 8993146 $31.17
Bill
Temperature Sensor (Gauge)
Temperature Sending Unit
Switch 25036535 $17.81
Sender 8993146 $31.17
Bill
Thread Starter
Junior Member
Joined: Feb 2001
Posts: 62
Likes: 0
From: New Zealand
Car: 86 TransAm
Engine: 360 SBC 4Bolt / Bowtie Heads
Transmission: T5 NWC Manual
Axle/Gears: Torsen T2 / 3.23
Thanks Very much,
Appreciate your help. Managed to get hold of a Wells data book and after a little research it appears they do a gauge sender in both 3/8 AND 1/2 NPT! They are TU66 and TU65 respectively. This may be usefull for those out there who, like me, will be using the Bowtie heads with no sensor holes (Currently throwing together a 360 CID small block).It means I can use an original Thermostat housing but with 2 sensors (ECM original and 1/2" Gauge). I will drill and tap an un-used hole at the front of the Performer manifold for installing the fan switch for use with a 170 Deg' Thermostat also.This keeps everything nice and tidy and in one central area.
Thanks for all and kind regards...
Geoff
Appreciate your help. Managed to get hold of a Wells data book and after a little research it appears they do a gauge sender in both 3/8 AND 1/2 NPT! They are TU66 and TU65 respectively. This may be usefull for those out there who, like me, will be using the Bowtie heads with no sensor holes (Currently throwing together a 360 CID small block).It means I can use an original Thermostat housing but with 2 sensors (ECM original and 1/2" Gauge). I will drill and tap an un-used hole at the front of the Performer manifold for installing the fan switch for use with a 170 Deg' Thermostat also.This keeps everything nice and tidy and in one central area.
Thanks for all and kind regards...
Geoff
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