Nitrous Express .039 R/T Single Jet

Marsoni

M251S

$20.68

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

Nitrous Express .039 R/T Single JetThe NX HP Jets are manufactured on CNC equipment, and are guaranteed to be within . 0005 of specified jet size. In recent testing, using the same jet size, HP jets out flowed the competition by 35%! That's right 35% more flow through the same orifice, how you ask? The HP jet was designed to be more than just a hole in a piece of brass; its contoured inlet and multi stepped outlet allow turbulence free flow with no restrictions. Certificate of Origin

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We offer a 30-day return/exchange service after receiving.
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Had everything I needed plus some extra parts in the kit. I probably could have just replaced the impeller for slightly less but while everything was disassembled you might as well replace the works. Included - Water Pump Impeller, Housing, Key, Face Plate, Face Plate Gasket, O-Ring, Seal Face and Carrier Assembly Oil Seal

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Reviewed in the United States on October 28, 2025

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chris null

Battle Creek, US

★★★★★ 5

Water impeller kit

Worked perfectly for my ‘02 Rinker Captiva 212 with the 5.7 Mercruiser Aloha one outdrive !

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Reviewed in the United States on October 9, 2025

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Jmac

Dallas, US

★★★★★ 4

Good quality, but could have used better instructions

The kit was complete, and all the components were well made. However, if you aren't somewhat mechanical, it would be fairly easy to install the gaskets and backing plate in the wrong sequence. With better instructions, this would be a 5 star plus kit.

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Reviewed in the United States on July 31, 2025

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ross

Charlottesville, US

★★★★★ 5

Don't pay boat shops for over priced services!

Boat shop wanted $400 dollars for a new water pump replacement. Got this on Amazon and watched a few utube videos. Took less then 2hrs to take apart and replace. I put it in a Alpha 1 gen 2 lower. Very simple process.

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Reviewed in the United States on May 24, 2025

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S. C.

Phoenix, US

★★★★★ 5

Exact Replacement Plus a Few Extra Parts Dependent on the Model of Outboard

Worked great for my 2005 200hp Optimax Outboard.

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Reviewed in the United States on September 20, 2025