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Regular price $1,554.00 USD
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Air Plains Model Eligibility

172B, 172C, 172D, 172E, 172F, 172G, 172H, 172I, 172K, 172L, and 172M models are approved when any of the following STC is incorporated: SA4428SW

If required, FAA Form 8130-3 must be requested. All other documents will be provided in digital format to your e-mail after check-out or provided with the shipped item.
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Carburetor Induction Airbox Assembly 

New airbox assembly made for Air Plains 180hp engine upgrade. Carb heat airbox assembly includes control arm assembly and corrosion proof shaft along with other improvements over the original airbox design. 

If you have an Air Plains 172-180hp that was done prior to 2011 it is very likely the original airbox was modified per the STC and reinstalled. While the previous process works just fine, Air Plains has improved the upgrade kit to now include the airbox assembly ready to install out of the box with the STC Kit purchase.  

Latest Improvements: 

  • Airbox arm has been improved to a hardened material with a thicker cross section. 
  • Added nutplates to the front of the airbox to accomodate the Brackett Air Filter if already installed

Approved Replacement Part Number:

Model Eligibility:
172B, 172C, 172D, 172E, 172F, 172G, 172H. 172I, 172K, 172L, 172M model with STC SA4428SW.

Installation Assistance:
Link to Air Plains main website with instructions that cover the proper way to install Air Plains airbox and support bracket on your Air Plains 180HP engine upgrade.