This Holley accelerator pump discharge nozzle set includes two aluminum, tube-type nozzles with a 0.031 in. hole size, plus four gaskets for rebuilding or recalibrating a Holley carburetor's accelerator pump circuit.
Specifications:
- Material: Aluminum
- Nozzle Size: 0.031 in.
- Nozzle Style: Tube Type
- Includes: 2 nozzles, 4 gaskets
- Part Number: 121-31
Nozzle sizes .040 in. and larger include a hollow nozzle screw; this smaller size does not require one.
FAQ
What hole size is this discharge nozzle?
It has a 0.031 in. hole size.
How many nozzles come in this kit?
Two nozzles are included, along with four gaskets.
Is this a tube-type or straight-type nozzle?
This is a tube-type discharge nozzle.
Does it include a hollow nozzle screw?
No. Only nozzle sizes .040 in. and larger include a hollow nozzle screw.

