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Which replacement dust cap works? Dorman 13976 or 13996?
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56D500boy
Posted 2020-04-28 7:02 PM (#597484)
Subject: Which replacement dust cap works? Dorman 13976 or 13996?



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This is for my 56 Dodge. I bought some 13996 which say Chrysler and1 5/32" and 46.1 mm on the package. I knew 1 5/32" was wrong but bought them anyway.

When I finally went to install them, I found that the 46.1 mm was correct and my old batter OE ones were about 45.1 mm so the new ones were 1 mm larger and I could not force them on.

On line, Dorman now says that the 13996 is 1 13/16" (1.80 in)(45.72 mm). Still a bit big.

https://www.dormanproducts.com/p-51705-13996.aspx?origin=keyword

So then I checked Dorman 13976 on line which also say Chrysler and are supposed to be 1.60 in diameter which is 40.64 mm. Too small. But wait, it also says that the 13976 crosses to Chrysler 1613416, which, as 1613 416, is the correct non-estate wagon (and Imperials) dust cap for the 55-58 Mopars. Hmm.... something is wrong

https://www.dormanproducts.com/p-1477-13976.aspx?origin=keyword

Is there not one that works perfectly? Or is it the 13976 and the info is wrong?





Edited by 56D500boy 2020-04-28 7:03 PM
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Coronet_Jeff
Posted 2020-04-29 7:41 AM (#597498 - in reply to #597484)
Subject: Re: Which replacement dust cap works? Dorman 13976 or 13996?


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I just went through this last week. It seems Napa and Dorman have the wrong interchange info. They both show the small cap 13976 interchanging with 1613416 AND 2072718, which is for A-body cars with 9 inch brakes. Don't think so. They are definitely too small for our 55-58 cars. I tried the larger cap, thinking like you did, maybe it's close and they have the wrong number? Nope. Just a hair too big.

I looked at AutoZone and Advanced Auto but they carry the Dorman Help caps which have a stupid Made in China proudly etched in the top, and I didn't care for that.

I had to order some from Hoffman's Winner Circle (I'm a distributor for them). They just arrived yesterday and appear correct, but they are relatively pricey.
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56D500boy
Posted 2020-04-29 10:24 AM (#597501 - in reply to #597498)
Subject: Re: Which replacement dust cap works? Dorman 13976 or 13996?



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Location: Lower Mainland BC
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Thanks Jeff. At least I know that I am not going crazy.

So you got the ones on this Hoffman's list? (They sure look like a Dorman product ??):

http://www.hoffmanswinnerscircle.com/05_brake_service.htm





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