Johnson Pump Bilge Alert High Water Alarm - 12V Ultima - 72303-001

Johnson Pump Bilge Alert High Water Alarm - 12V Ultima - 72303-001

Marsoni

M251S

$89.99

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

Johnson Pump Bilge Alert High Water Alarm - 12V Ultima - 72303-001Johnson Pump Bilge Alert High Water Alarm 12V Ultima 72303 001 The Johnson Pump Bilge Alert High Water Alarm (72303 001) is a critical safety device designed to warn boat owners of dangerously rising bilge water levels before flooding becomes a serious threat. Engineered for 12V DC marine electrical systems, this alarm provides a clear audible warning when water reaches a pre set high level in the bilge. Featuring Johnson Pumps Ultima electronic water

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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

Boise, 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

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ANDRES FIGUEROA

Fort Morgan, US

★★★★★ 5

Very good

The best quality. Runs like new again.

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Reviewed in the United States on March 12, 2026

Verified Purchase

Ale

Houston, US

★★★★★ 1

garbage spark plugs

misfired after 30 minutes of driving cylinder 4 misfire code, left me stranded on the highway with baby in car. “(9621)” at the end of description is a lie, was not compatible with my vehicle even with compatibility test.

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Reviewed in the United States on May 17, 2026