1/2" x 3" Long Nipple NPT Seamless Sch 160S - SS 304/304L

Marsoni

M251S

$25.06

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

1/2" x 3" Long Nipple NPT Seamless Sch 160S - SS 304/304LProduct Details : 1 2" x 3" Long Nipple NPT Seamless Sch 160S SS 304 304L Part No: 304LN916005003 Product Type: Long Nipple Type: Seamless End Type: TBE (Threaded Both Ends) Thread Type: NPT Size: 1 2" Length: 3" Schedule: 160S Material(s): Stainless Steel 304 304L Details: Made to ASTM 733 from ASTM A312 pipe For any information about products, please contact us. *Photos for reference purposes only.

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Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.

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Reviewed in the United States on April 27, 2026

Verified Purchase

Britincali

West Palm Beach, US

★★★★★ 5

Upgrade from OEM

After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is. These were an upgrade from OEM parts. They were gapped perfectly for the car. They took 20mins to fit and work fine.

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Reviewed in the United States on February 11, 2026