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AEM Air Bypass Valve - 3 in.

Intake Bypass Valve, 3 in Inlet, 3 in Outlet, Rubber / Foam, Black, Universal, Each
Limited Supply: only 1 remaining
Availability: Same Day Shipping!
Shipping: Ships from Michigan.
Was: $80.29
Sale: $63.99
Save: 20%
Save: $16.30


AEM's patented air bypass valve virtually eliminates the chance of hydro-lock in the unlikely event the filter of your AEM Cold Air induction system becomes submerged in water. The valve installs along the upper portion of the inlet pipe and shuts down induction at the filter when it becomes submerged, rerouting air through its external diaphragm to keep water out and air flowing in. The AEM Air Bypass valve is for use only on AEM Cold Air induction systems, and is not for use on forced induction vehicles. Pending C.A.R.B. exemption.

Pit Stop USAoffers AEM Air Bypass Valve - 3 in. 20-403S at low everyday prices. Be sure to check out all of our products from AEM Induction Systems including AEM Induction Systems Air Bypass Valves.


These products may contain a chemical known to the state of California to cause cancer and birth defects or other reproductive harm


  • AEM20-403S
  • AEM20-403S
  • 0840879006990
  • AEM Induction Systems
  • Available
  • Same Day Shipping!
  • New

Shipping Information

  • Item Requires Shipping
  • 0.7 lbs.
  • W6.0000” x H3.7000” x L6.2000”
  • Ships from Michigan.

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