Crank sensor

Blacky

Drive it like you stole it
I'm afraid to ask this question but were there two different size crank sensors for our 86 87 turbo cars? Why going through my parts, I found two different size brackets that would hold a bigger and smaller crank sensor. I really believe the older I'm getting the dumber I am. Can somebody help me with Crank sensors for dummies.
Steve c
 

~JM~

Wrinkled Member

Blacky

Drive it like you stole it
One seems to have a part number of 25535480 and the other is part number 25526123
 

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TurboWh1

Well-Known Member
The smaller one to the right in your photo was the last version I bought from GM a few years back.
 

Blacky

Drive it like you stole it
I saw a link from Hot Air 1 and I clicked on it and printed it out and now it's gone for some reason but it seems like that older version really shouldn't be used anymore as it was a faulty one
 

~JM~

Wrinkled Member
Look at the two links I posted above. I think you will find the info you seek. If I recall correctly, the aluminum sensor you have pictured is an early '86 model. The smaller black plastic sensor is the improved late '86 & '87 sensor.
 

Blacky

Drive it like you stole it
I think jm is correct. For some reason I can't Open the link. Just got this new phone and maybe I have to work on something. Thank you for your reply
 

~JM~

Wrinkled Member
My '87 had the aluminum sensor when I pulled the timing cover. I replaced it with the smaller one.
 

Blacky

Drive it like you stole it
I am almost positive my 87 had that same sensor and it possibly went bad and was changed to the small one
 

Blacky

Drive it like you stole it
I guess the point here is the other one. I have brand new is a piece of wall art
 
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