3" x 18" Long Nipple NPT Welded Sch 40S - SS 304/304L

Marsoni

M251S

$158.41

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

3" x 18" Long Nipple NPT Welded Sch 40S - SS 304/304LProduct Details : 3" x 18" Long Nipple NPT Welded Sch 40S SS 304 304L Part No: 304LN403000918 Product Type: Long Nipple Type: Welded End Type: TBE (Threaded Both Ends) Thread Type: NPT Size: 3" Length: 18" Schedule: 40S Material(s): Stainless Steel 304 304L Details: Made to A 733 from ASTM A312 pipe For any information about products, please contact us. *Photos for reference purposes only.

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I love having heavy duty cable on hand for my cars. It's so nice to be able to make your own starter and alternator cables when restoring cars. These cables are 100% copper, not CCA (copper clad aluminum) like many others are. Copper is far superior for conductivity and handling higher loads. The rubber on the cable is thick and yet very flexible..it's clearly marked and seems very durable. I like to use a hydraulic crimping tool and then add marine grade heat shrink tubing with the adhesive inside of it to keep it as weatherproof as possible.

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Reviewed in the United States on May 10, 2026

Verified Purchase

N. A. Williams

Chelsea, US

★★★★★ 5

89 mercruiser works fine

The mounting bracket was a little smaller than orginal, but no big deal, just drilled new hole in mounting plate. Solved my starting problem

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Reviewed in the United States on May 20, 2023

Verified Purchase

Charles R Gunther

Lake Worth, US

★★★★★ 5

Direct replacement

Direct replacement for a failed solenoid on my Larson boat. Easy to install and works as it should.

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Reviewed in the United States on October 3, 2022

Verified Purchase

osborne

Lake Worth, US

★★★★★ 3

Working

Hard to find work great

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Reviewed in the United States on May 14, 2026

Verified Purchase

Jon

Alexandria, US

★★★★★ 4

Did its job

Got me back onto the water. The mounting holes distances from center to center are less than original equipment. But in a pinch they will do the job.

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Reviewed in the United States on May 29, 2024