K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large

K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large

Marsoni

M251S

$472.50

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

K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - LargeLight weight yet durable, K&N's Sprint Car Style Air Boxes are a must for any racer currently using traditional multi Siamese stacks. Constructed from ultra light weight carbon fiber K&N's Sprint Car Style air box provides ample air flow for your racing needs. As with all K&N filters, it is a washable and reusable air filter. Simply use K&N oil and cleaner to service your filter.

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We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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For those of you with the 135 hp mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on Amazon because Boats.net as an example, is not clear on what you're getting.

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Reviewed in the United States on August 3, 2024

Verified Purchase

Carlton Earley

Omaha, US

★★★★★ 5

fixed issue

stopped the overheat issue on my outboard!!!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on August 6, 2025