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AEM 4in Universal Cold Air Intake System
AEM 4in Universal Cold Air Intake System
AEM 4in Universal Cold Air Intake System
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AEM 4in Universal Cold Air Intake System

Marsoni M251S
Sale price$210.00
Pay 4 payments of $52.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
AEM 4in Universal Cold Air Intake SystemAEM AEM 21 5011 Universal Cold Air Intake System: 21 5011. AEM's 21 5011 is ideal for engine swaps when a 4 inch diameter custom air intake is required. Air Box Included: No Air Filter Color: Red Air Filter Material: Non woven Synthetic Air Filter Outlet Shape: Round Air Filter Washable: Yes Clamp Color Finish: Natural Clamp Material: Stainless Steel Clamp Style: Regular Clamps Included: 8 Coupler Color Finish: Not Applicable Couplers Included: None
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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 364 reviews
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Product Reviews
R
Verified Purchase
Ryan
New York, US
★★★★★ 5
Durable Solenoid for Starter and Trim
Number of Items: 1
Installed easily and works perfectly. Engages the trim and starter reliably every time. Solid, durable, and great value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
C
Verified Purchase
Cuz
Birmingham, US
★★★★★ 5
Works Great
Number of Items: 1
I have a 1988 mercury/mariner 75 hp motor. My motor would not go down. Purchased this solenoid to replace the old one. Fit perfect and fixed my problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2025
G
Verified Purchase
Gary Miller
Birmingham, US
★★★★★ 5
Just the part I needed
Number of Items: 1
It was a perfect match to the one I needed to replace. And the shipping was lightning fast
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
S
Verified Purchase
steven clark
Massapequa, US
★★★★★ 5
Works great
Number of Items: 1
Works great easy fix for my Merc. Trim motor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2025
L
Verified Purchase
Lori
Omaha, US
★★★★★ 5
Worked well
Number of Items: 1
Worked well for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025

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