STAHLWILLE Ringmaulschlüssel OPEN BOX 13 SW 21 mm Länge 260 mm ( 4000826016 )

STAHLWILLE Ringmaulschlüssel OPEN BOX 13 SW 21 mm Länge 260 mm ( 4000826016 )

Marsoni

M251S

$29.78

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

STAHLWILLE Ringmaulschlüssel OPEN BOX 13 SW 21 mm Länge 260 mm ( 4000826016 )Lieferumfang: Ringmaulschlssel OPEN BOX 13 SW 21 mm Lnge 260 mm Produktbeschreibung: Chrom Alloy Stahl verchromt mit gleichen Schlsselweiten Ringseite 15 abgewinkelt, Maulstellung 15 dnnwandige Ringe perfekt zum Schrauben an schwer zugnglichen Stellen DIN 3113 Form A ISO 3318, ISO 7738 Technische Daten: Ausfhrung: Form A

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Seemed to work as well as or better than some more expensive catalytic converter cleaners. I put it in while at 1/3 tank and my Check Engine light went out almost immediately once I started driving. My Tundra has almost 230,000 miles and still runs great but was getting a little harder to start after I switched from full synthetic oil to conventional. I’ll never do that again and immediately switched back but the damage was done. Check engine light came on and I had to crank longer to get it started. Adding this Liquid Moly fixed both issues temporarily. I have to wonder if this was used regularly, say every 3 months, if it would clean the catalytic converter more permanently?

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Reviewed in the United States on December 29, 2025

Verified Purchase

Jon.

Lexington, US

★★★★★ 3

Ehh??

Didn't work for my on my 17 hyundai accent with 90k on it. I poured the whole bottle in with a half tank of gas. And went for a 3 day italian tune up.... no dice.

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Reviewed in the United States on May 8, 2026

Verified Purchase

Juan Gonzalez

San Leandro, US

★★★★★ 5

Works great

Follow instructions and it will work. Had a p420 code, caught it early used this. No more code and passed emissions

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Reviewed in the United States on May 10, 2026

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Matt Teed

Lexington, US

★★★★★ 5

Actually works on BMW!

I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!

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Reviewed in the United States on November 12, 2024

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Dak

Fort Morgan, US

★★★★★ 5

Works great

Works great

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Reviewed in the United States on May 26, 2025