Fuel Pressure Regulator Diaphragm

Fits 1 bbl, 2 bbl, & 4 bbl Holley TBI,s

PART# 512-1

$50.44   Suggested Retail
$40.86   Holleydays Price
Free Shipping on orders over $100*
In Stock  


Regulator Rebuild Kit for 1 bbl, 2 bbl, & 4 bbl Holley TBI regulators. Holley's regulator rebuild kits include everything needed to rebuild your billet fuel pressure regulator back to new. Includes diaphragm assembly, gaskets and rebuild instructions.


  • Replacement fuel pressure regulator diaphragm
  • Fits 1bbl, 2bbl, and 4bbl Pro-Jection Throttle bodies


Component TypeRegulator Rebuild Kit
Product TypeFuel Pressure Regulator Rebuild Kit
Part Number512-1

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