NOS C6DZ-10884-B Temp Sender

[s2ms]

Came across this recently which has me a little confused. I thought the -B senders all have a red insulator while the white insulator was only seen on the -A sender? I have NOS Autolite and Motorcraft -B senders which both have red insulators. At first I thought this was just mis-boxed but it does have the proper 260 temp rating for a -B.

Is it possible the very early -B sender insulators were also white or could the red have completely faded away? Any suggestions for coloring, paint vs dye?

Thanks,
Dave

[68blk500c]

That is very early box.  I'm guessing that under that adhesive C6 label is an earlier part number.  Ford service parts keep us on our toes.

[Bob Gaines]

Possibly the red dye you see on the threaded stud is a indicator in the same way the red insulator indicates what it is. Red dye on the threaded stud is not typical on all of the NOS or in the wild senders that I have seen.

[s2ms]

That is very early box.  I'm guessing that under that adhesive C6 label is an earlier part number.  Ford service parts keep us on our toes.

Was wondering the same, pulled the label back, no sign of anything under it.

[Bob Gaines]

Simple enough to put some red Dykem dye on the insulator so as to make it look as expected.

[6s1640]

Hi guys,

Please educate us.  What does the white and red colored sender mean?  Is it the temperature range of the sender, or does it pair with certain year cars and temperature gauges.

I ask because I had a old sender that was reading low on the temperature gauge.  I swapped out for an aftermarket sender and the gauge read really high.  With the old and new sender, I checked the temperatures with an infrared thermometer on different engine parts and the values were in acceptably ranges and matched.  I then try a different gauge I got the same result.  I then swapped the sender again and got a more normal reading on the temperature gauge.  What am I missing?

Thanks

Cory

[s2ms]

Simple enough to put some red Dykem dye on the insulator so as to make it look as expected.

Thanks Bob, I'll give that a try...

[s2ms]

Hi guys,

Please educate us.  What does the white and red colored sender mean?  Is it the temperature range of the sender, or does it pair with certain year cars and temperature gauges.

I ask because I had a old sender that was reading low on the temperature gauge.  I swapped out for an aftermarket sender and the gauge read really high.  With the old and new sender, I checked the temperatures with an infrared thermometer on different engine parts and the values were in acceptably ranges and matched.  I then try a different gauge I got the same result.  I then swapped the sender again and got a more normal reading on the temperature gauge.  What am I missing?

Thanks
Cory

Hi Cory,

The C6DZ-10884-B sender was mostly used in V8's starting in 1966, it (typically) has a red insulator and 260* temp rating. The C6DZ-10884-A sender was mostly used in 6-cyl but IIRC also some V8's in 1967 and later, it has a white insulator and 250* temp rating. Temp ratings are stamped on one sender nut face. Not near an MPC at the moment but that will have all the details. Bob Mannel's book also has a nice SFB breakdown.

Dave

[silverton_ford]

Not near an MPC at the moment but that will have all the details.

Page 77 of this document of the 1975 MPC - http://squarebirds.org/Manuals/1965/1965-72FordPartsTextCatalog/14-1965Text-Electrical.pdf





Entire 1965-72 MPC Final issue 1975 online here: https://www.squarebirds.org/Manuals/1965/1965-72FordPartsAccCatalogs.htm

[s2ms]

Thanks Brian!

Gets a little more confusing with the info in the 60-68 MPC and Bob Mannel's SBF book, both show the white insulator -A sensor was used on V8's:

1960-68 MPC: (only showing Mustang applications to keep it simple)
------------------------------------------------------------------
C6DZ-10884-A, stamped 250, 3/8"-18 pipe thread, includes white insulator:
- 1966 - 6-cylinder
- 1967-68 - all except 428CJ

C6DZ-10884-B, stamped 260, 3/8"-18 pipe thread, includes red insulator:
- 1966 - 8-cylinder (289, 390, 428)
- 1968 - 428CJ


Bob Mannel's SBF Book: (only lists SBF applications, I'm only showing Mustangs)
-------------------------------------------------------------------------------
C6DZ-10884-A, stamped 250, 3/8"-18 pipe thread, 1-5/8" long, white insulator:
- 1967-69 Mustang (SBF)

C6DZ-10884-B, stamped 260, 3/8"-18 pipe thread, 1-5/8" long, red insulator:
- 1966 Mustang (SBF)

[J_Speegle]

Consider or just be aware that the MPC's often showed not what part was used originally but what part Ford had in the system at the time the MPC was printed, would function as a replacement. Example would be the page from a MPC in reply #8. It shows what Ford had in 1975 almost ten years after the cars were built.

Sometimes same part as original while other times a replacement or substitute. This fact can sometimes explain conflicting data

[Karguy]

I see that the unit that Dave shows in the pictures has the cursive Ford type F along with the 260 stamp in it. Is that correct OE 65/66 289 hipo style or what they would've used from SA? Sounds like the main difference is the lack of red on the insulator, correct?
Thanks

[Bob Gaines]

I see that the unit that Dave shows in the pictures has the cursive Ford type F along with the 260 stamp in it. Is that correct OE 65/66 289 hipo style or what they would've used from SA? Sounds like the main difference is the lack of red on the insulator, correct?
Thanks

Correct, main difference is the lack of red insulator. FYI that can easily be remedied. I have a strong suspicion that the red dye on the threads was in at least this case taking the place of the red insulator as a identifier.

[Karguy]

Thanks Bob, have you seen the water temp sensors that Dennis Carpenter makes with the red insulator? Thoughts?

[s2ms]

I see that the unit that Dave shows in the pictures has the cursive Ford type F along with the 260 stamp in it. Is that correct OE 65/66 289 hipo style or what they would've used from SA? Sounds like the main difference is the lack of red on the insulator, correct?
Thanks

I believe the 65 Cobra intake used the smaller diameter C5DZ sender.

Thanks Bob, have you seen the water temp sensors that Dennis Carpenter makes with the red insulator? Thoughts?

Not Bob, but other than the lack of correct stamped markings, the Dennis Carpenter red insulator looks pretty nice to me...

https://www.dennis-carpenter.com/cars/cooling-system/temperature-senders/c6dz-10884-b-temperature-sender-p65