Koyo Radiator Drain Plug

Marsoni

M251S

$13.60

Get it in 3 business days with 1 day shipping. Friday, May 29

Koyo Radiator Drain PlugSKU: PI 1186 UPC: 847839000760 Koyo Radiator Drain Plug for BMW 3 Series E36 1992 1999 and 5 Series E39 1997 2003 PI 1186 The Koyo Radiator Drain Plug PI 1186 replaces fragile OEM plastic plugs in BMW E36 3 Series 1992 1999 and E39 5 Series 1997 2003 models including Z3 variants. Built from billet aluminum this plug endures extreme track pressures and heat while enabling fast mess free coolant drains during maintenance. Its robust construction ensures

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I just received these for my son. They are very nice and look sturdy, but he hasn't worn them yet, so I cannot speak to how well they hold up in the wash or when worn. They appear to be the right size and look stretchy, but not the kind of stretchy that feels super tight on the foot (which I don't like). If they wear unusually well or poorly, I will come back and edit this.

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Reviewed in the United States on December 26, 2025

Verified Purchase

Noah

Whiting, US

★★★★★ 5

MY FAVORITE SOCKS

Size: Large, Color: (001) Black / Black / Pitch Gray

I bought these originally at my local UA store and had to buy more. They are my favorite daily wear.

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Reviewed in the United States on February 25, 2026

Verified Purchase

SD-out

Boise, US

★★★★★ 4

A sock with real support and thickness!

Size: Large, Color: (001) Black / Black / Pitch Gray

I’m pretty happy with these. It seems like sock manufacturing changed 10-15 years ago, and it’s become hard to find pairs that are actually thick and durable. I bought these for an event where I knew I’d be on my feet all day, and they did not disappoint. They provided excellent support throughout the day, even while wearing shoes that typically make my feet ache after just a couple of hours. Glad to finally find a pair that feels well-made.

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Reviewed in the United States on April 10, 2026