Free shipping on orders over $100 - Details
Holley Sniper EFI

Sniper EFI IAC Plug

Remote IAC (Idle Air control) and plug - Sniper EFI 2 x 4 combinations

Part # 543-123
In Stock
Your Price
Suggested Retail
Add to Wish List
The Sniper EFI remote IAC (Idle Air Control) and plug is designed to gain installation clearance on some Sniper EFI 2x4 installations. With select intake manifolds, the distributor housing and IAC valve on the back of the Sniper EFI throttle body are fighting for the same real estate. This plug allows you to use our remote IAC kit which utilizes the factory Sniper EFI wiring and IAC connector to relocate the IAC off of the throttle body for a clean installation. The IAC bracket ensures the IAC valve is securely mounted to the throttle body. The included plug comes with an o-ring, preventing any potential vacuum leaks.


  • Designed to gain additional clearance on some Sniper 2 x 4 installations
  • IAC plug comes complete with O-ring, preventing potential vacuum leaks
  • Allows use of remote IAC kit (part# 543-122)
Brand Holley Sniper EFI
Emission Code5
IAC hardware specs(2) 10x32
O-Rings IncludedYes
Product TypeIAC Part
QtySold individually
Part Number543-123

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Designed for applications that use the Chrysler style IAC - Part number 543-105.

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.