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Rocker panel drain plugs?

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Old 12-18-18, 12:59 PM
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Rocker panel drain plugs?

Hello members,

I'm looking to buy some replacement drain plugs that line the bottom of the rocker panel. IIRC, there should be about 5 plugs on each side. If anyone knows the part number for this item or where I can purchase replacements I would appreciate the information. Attached is a picture of what I'm referring to. Thanks and happy holidays.

Rocker panel drain plug

-groovin
Old 12-19-18, 03:23 AM
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I don't think those were put there by MAZDA. To me those look like the plugs used by aftermarket or dealer-added rust-proofing. I'd get the hole ID and just check with places like GRAINGER or FASTENAL.
Old 12-19-18, 06:08 AM
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I agree, it looks like those are on the outside of the pinch weld? Pretty sure my car doesnt have those. And I dont see them on the parts diagram, every plug is further under the car.
Old 12-19-18, 10:09 AM
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the picture in the parts catalog is not very good, i actually figured this out once, so i should look in my stash, but i think i would order 1 B001-56-051, and make sure its correct
Old 12-19-18, 01:37 PM
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In the 3 FD's I've owned they all had these covers? There condition varied and one or two may have been missing but present nonetheless. I'd like to think the the holes come plug from factory as the case with most vehicles but I may be wrong. Worst case scenario I'll take measurements and find an aftermarket version that will work as the sgt suggested. Was just hoping someone knew exactly what I needed and where to get them. Thanks for the help everyone.

I will check out that part number, thanks j9fd3s.

-groovin
Old 12-19-18, 03:22 PM
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i did this in the 90's, the picture is so bad i just ordered a few part numbers before i found the correct one. Mazda does have them, and they are supposed to be on the car
Old 12-20-18, 06:12 AM
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Edit

Last edited by Sgtblue; 12-20-18 at 06:15 AM.
Old 12-21-18, 12:07 AM
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I found the exact same plugs on junkyard Mazdas from the same era. I can't remember what models, but probably Miata, 626, mx3, 323 etc. Look in the wheel wells and undercarriage.
Old 12-21-18, 02:41 PM
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That is good information, thank you.

-groovin
Old 09-30-20, 07:47 AM
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B001-56-051 appears to be the correct part number. There are six on each side, there is a hidden one under the rock/mud guard piece near the rear wheel.
Old 10-01-20, 06:37 AM
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May I ask what is the reason for plugging them? Shouldn't water drain out of these holes? Unless it's redirecting the water elsewhere...
Old 10-06-20, 01:22 AM
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Generally these holes might have been utilized for draining out paint when the frames were dipped, or for locating tools for assembly, and then sealed after their usefulness was done.
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Old 10-10-20, 10:47 PM
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It would be cool if someone with some 3D printer skills could create some type of plug that would mount in these holes that could be threaded. It would create a way to attach feed side skirts without making extra holes with sheet metal screws.
Old 10-11-20, 06:55 PM
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Originally Posted by D4rw1n
It would be cool if someone with some 3D printer skills could create some type of plug that would mount in these holes that could be threaded. It would create a way to attach feed side skirts without making extra holes with sheet metal screws.

I attached mine to the factory rear side skirt deals. And the front fender bolts. Tape in between. Working out well.
Old 10-12-20, 06:49 AM
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Originally Posted by AE_Racer
I attached mine to the factory rear side skirt deals. And the front fender bolts. Tape in between. Working out well.
Same here...didn't drill any holes...
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