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Holley Accelerator Pump Discharge Nozzles


Holley
Holley Accelerator Pump Discharge Nozzles

Product images may differ from actual product appearance.

A wide selection of discharge nozzle sizes is invaluable to properly tune an accelerator pump system. The hole size determines the rate of discharge. A larger hole will shoot fuel at a faster rate with less pressure than a smaller hole. Nozzle sizes are stamped on each shooter (for example, a 31 stamp indicates a hole size of .031'').


*2 gaskets included unless otherwise noted
Anti-Pullover Nozzles *For 4165 and 4175 carbs
Holley 121-225 - Holley Accelerator Pump Discharge Nozzles
 		510-121-225
Anti-Pullover Nozzle
  • Hole size .025''
    		• $12.99
    Ships
    Holley 121-228 - Holley Accelerator Pump Discharge Nozzles
         		510-121-228
    		Anti-Pullover Nozzle
  • Hole size .028''
    		• $12.99
    Ships
    Holley 121-231 - Holley Accelerator Pump Discharge Nozzles
         		510-121-231
    		Anti-Pullover Nozzle
  • Hole size .031''
    		• $12.99
    Ships
    Holley 121-237 - Holley Accelerator Pump Discharge Nozzles
         		510-121-237
    		Anti-Pullover Nozzle
  • Hole size .037''
    		• $12.99
    Ships
    Holley 121-240 - Holley Accelerator Pump Discharge Nozzles
         		510-121-240
    		Anti-Pullover Nozzle
  • Hole size .040''
    		• $12.99
    Ships
    Center Squirter Nozzle Gaskets
    Holley 1008-844 - Holley Accelerator Pump Discharge Nozzles
         		510-1008-844
    		Nozzle Gaskets
  • 10 per package
    		• $11.99
    Ships
    Center Squirter Nozzle *For 510-O-4224
      510-121-325
    		Center Squirter Nozzle
  • Hole size .025''
    		• $13.99
    Ships
    Pump Discharge Needle
    Holley 121-5 - Holley Accelerator Pump Discharge Nozzles
         		510-121-5
    		Pump Discharge Needle
  • .050'' Hole
  • 2 Gaskets
    		• $9.99
    Ships
    Straight Nozzles *For 4150/4160/4500 carbs
    Holley 121-118 - Holley Accelerator Pump Discharge Nozzles
         		510-121-118
    		Straight Nozzle
  • Hole size .018''
    		• $11.99
    Ships
    Holley 121-121 - Holley Accelerator Pump Discharge Nozzles
         		510-121-121
    		Straight Nozzle
  • Hole size .021''
    		• $11.99
    Ships
    Holley 121-125 - Holley Accelerator Pump Discharge Nozzles
         		510-121-125
    		Straight Nozzle
  • Hole size .025''
    		• $11.99
    Ships
    Holley 121-128 - Holley Accelerator Pump Discharge Nozzles
         		510-121-128
    		Straight Nozzle
  • Hole size .028''
    		• $11.99
    Ships
    Holley 121-131 - Holley Accelerator Pump Discharge Nozzles
         		510-121-131
    		Straight Nozzle
  • Hole size .031''
    		• $11.99
    Ships
    Holley 121-132 - Holley Accelerator Pump Discharge Nozzles
         		510-121-132
    		Straight Nozzle
  • Hole size .032''
    		• $11.99
    Ships
    Holley 121-135 - Holley Accelerator Pump Discharge Nozzles
         		510-121-135
    		Straight Nozzle
  • Hole size .035''
    		• $11.99
    Ships
    Holley 121-137 - Holley Accelerator Pump Discharge Nozzles
         		510-121-137
    		Straight Nozzle
  • Hole size .037''
    		• $11.99
    Ships
    Holley 121-140 - Holley Accelerator Pump Discharge Nozzles
         		510-121-140
    		Straight Nozzle
  • Hole size .040''
  • Hollow nozzle screw included
    		• $11.99
    Ships
    Holley 121-142 - Holley Accelerator Pump Discharge Nozzles
         		510-121-142
    		Straight Nozzle
  • Hole size .042''
  • Hollow nozzle screw included
    		• $11.99
    Ships
    Holley 121-145 - Holley Accelerator Pump Discharge Nozzles
         		510-121-145
    		Straight Nozzle
  • Hole size .045''
  • Hollow nozzle screw included
    		• $11.99
    Ships
    Holley 121-147 - Holley Accelerator Pump Discharge Nozzles
         		510-121-147
    		Straight Nozzle
  • Hole size .047''
  • Hollow nozzle screw included
    		• $11.99
    Ships
    Holley 121-150 - Holley Accelerator Pump Discharge Nozzles
         		510-121-150
    		Straight Nozzle
  • Hole size .050''
  • Hollow nozzle screw included
    		• $11.99
    Ships
    Tube Nozzles *For 4150/4160/4500 carbs
    Holley 121-25 - Holley Accelerator Pump Discharge Nozzles
         		510-121-25
    		Tube Nozzle
  • Hole size .025''
    		• $19.99
    Ships
    Holley 121-28 - Holley Accelerator Pump Discharge Nozzles
         		510-121-28
    		Tube Nozzle
  • Hole size .028''
    		• $19.99
    Ships
    Holley 121-31 - Holley Accelerator Pump Discharge Nozzles
         		510-121-31
    		Tube Nozzle
  • Hole size .031''
    		• $19.99
    Ships
    Holley 121-35 - Holley Accelerator Pump Discharge Nozzles
         		510-121-35
    		Tube Nozzle
  • Hole size .035"
    		• $19.99
    Ships
    Holley 121-37 - Holley Accelerator Pump Discharge Nozzles
         		510-121-37
    		Tube Nozzle
  • Hole size .037''
    		• $19.99
    Ships
    Holley 121-40 - Holley Accelerator Pump Discharge Nozzles
         		510-121-40
    		Tube Nozzle
  • Hole size .040''
  • Hollow nozzle screw included
    		• $19.99
    Ships
    Holley 121-42 - Holley Accelerator Pump Discharge Nozzles
         		510-121-42
    		Tube Nozzle
  • Hole size .042''
  • Hollow nozzle screw included
    		• $19.99
    Ships
    Holley 121-45 - Holley Accelerator Pump Discharge Nozzles
         		510-121-45
    		Tube Nozzle
  • Hole size .045''
  • Hollow nozzle screw included
    		• $19.99
    Ships

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