ST261 w/Injector Built-in Downstream Injector (1.8mm) Unloader

ST261 w/Injector Built-in Downstream Injector (1.8mm) Unloader

Marsoni

M251S

$96.94

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

ST261 w/Injector Built-in Downstream Injector (1.8mm) UnloaderFEATURES: Regulating unloader valve Tamper resistant operator adjustable valve which allows limit setting on both maximum and minimum pressure Ideal for steam combination applications Straight flow through design minimizes pressure loss through valve Working components constructed of high grade stainless steel, teflon, and Viton seals for maximum heat chemical resistance Internal bypass valve can be easily accessed and repaired without removing

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Fast: 2-3 business days
Express: 1-2 business days

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The engine filter was really affordable it cost less then $15. I bought this filter because it was recommended from a family friend. It fitted my honda civic perfectly. Replacing the filter was so easy to replace. Replacing or changing the filter was easy it only took a few mins to do. The quality of the filter is really good and it feels like its perfect for my car. I would buy this filter over and over again thats how great it is.

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Reviewed in the United States on June 4, 2024

Verified Purchase

P.f

Lowell, US

★★★★★ 5

get it

Size: 2.0L

get it! i have a honda civic and i have bought this 3 times. works great!!

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Reviewed in the United States on February 25, 2026

Verified Purchase

Gabriel Kliatchko

Lowell, US

★★★★★ 4

Worth buying again.

Size: 2.0L

Works great. Right fit. Great value

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Reviewed in the United States on March 2, 2026

Verified Purchase

Edwin

Bozeman, US

★★★★★ 5

Great quality

Size: 2.0L

Perfect fit! Will definitely purchase it again

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Reviewed in the United States on December 12, 2025

Verified Purchase

Pusheen3

Fort Morgan, US

★★★★★ 5

Works great on my 2018 Honda Civic EX

Size: 2.0L, Size: 2.0L

Been buying these for years. They are relatively cheap and easy to replace, so much better than getting ripped off at the dealer lmao. Compatibility and Installation - 5/5 Filtration Efficiency and Performance - 5/5 Durability and Value for Money - 4/5 - these are made to be replaced, so can't really do much about that!

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Reviewed in the United States on May 17, 2024