FREE SHIPPING on all orders

Holley Performance 121-237 Accelerator Pump Discharge Nozzle

Carburetor Accelerator Pump Nozzle

Accelerator Pump Discharge Nozzle

Accelerator Pump Discharge Nozzle; 0.037 in. Hole Size; Anti-Pullover Type; Incl. 1 Nozzle/2 Gaskets;

  • Nozzle Size: 0.037 in.
  • WARNING CA Proposition 65: No

  • 0.037 in. Hole Size
  • Anti-Pullover Type
  • Includes 2 Gaskets

A good selection of accelerator pump discharge nozzle sizes is indispensable to the proper tuning of the accelerator pump system. The nozzle hole size determines the rate of fuel discharge. A larger hole will shoot the fuel at a faster rate, and with less pressure, than a smaller hole. Sizes are stamped on each nozzle. For example, the number 31 indicates that the nozzle hole size is .031-inches. Various styles of nozzles are offered by Holley.

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for fits GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress-up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Exhaust, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.