Holley 121-42 Tube Accelerator Pump Discharge Nozzle
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The part number is 121-I clicked on the image and the details of the product said that it was the same item as In other words, they are nozzles. It has a diameter of 042 millimeters. It is the two numbers after the last one that represent the nozzle size. You've got yourself a pretty big squirter there.
Selected User Reviews For Holley 121-42 Tube Accelerator Pump Discharge Nozzle
There were no defects on the Holley part, and the part worked as it should. Following this purchase, I proceeded to purchase the entire kit with devices starting at the smallest squirter and going all the way up to the largest. As part of the kit, the accelerator pump cams, hollow squirter screws, washers (gaskets), 50cc pump diaphragms, and 30cc pump diaphragms are included. If you want to fine-tune the accelerator pump circuit, I highly recommend buying the whole kit. This one size squirter set that I purchased here in this review is now in the process of being reviewed. I will finish dialing in my carburetor after I have gone through the process. Since I prefer the way the fuel streams into the booster when it is shot from a tube type nozzle, I will be buying the same "squirter" I am reviewing due to the fact that it travels further into the booster producing a more direct shot.
It's a very nice genuine Holley product.
A Holley OEM part. The tuning of double pumper carburetors is dependent on this part.
The system.
This product is good, but it does not come with the screws shown. I need to place an order now. Another setback for the USA.
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