LS Throttle Body Idle Air Control Valve Plug

LS Throttle Body Idle Air Control Valve Plug

Marsoni

M251S

$34.95

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

LS Throttle Body Idle Air Control Valve PlugEliminate your IAC valve and take full manual control over engine idle RPM This LS IAC plug replaces the factory Idle Air Control Valve on your throttle body, allowing you to fully eliminate electronic idle control. Ideal for race builds or simplified engine management systems, this plug lets you manually adjust and fine tune idle RPM without relying on a control module. Machined for a precise fit and sealed with included O rings, this solution

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We offer a 30-day return/exchange service after receiving.
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I used this as a junction point on a 1 gauge wire. I added an 8 gauge wire to one side, and the cover would not seat. I had to bend and maneuver the ring terminals to make the cover catch. For the price of the items, if used without any secondary wires attached and interior use only, this is an unbeatable deal.

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Reviewed in the United States on January 30, 2026

Verified Purchase

Joe M. Blair

Charlottesville, US

★★★★★ 5

Great Quality

Size: 300A

Exactly what I needed. Good quality and worked perfectly.

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Reviewed in the United States on May 21, 2025

Verified Purchase

Junior

Natrona Heights, US

★★★★★ 5

Great

Size: 300A, Size: 300A

Easy to install works great and really good quality and clean looking

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Reviewed in the United States on February 24, 2025

Verified Purchase

Bigzbe

Phoenix, US

★★★★★ 5

Nice!

Size: 300A

I was not expecting these to be this nice. You just can't beat the value. They look great and feel like they will hold up a long time. I definitely recommend!

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Reviewed in the United States on July 17, 2024