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Description
Holley 042 in.Accelerator Pump Discharge Nozzles # HO121-42Holley 042 in. Accelerator Pump Discharge Nozzles # HO121 42 "Accelerator Pump Discharge Nozzles, Squirters, . 042 in., Tube, Pair Pump Discharge Nozzle Style: Tube type Pump Discharge Nozzle Size (in.): 0. 042 in. Pump Discharge Nozzle Gaskets Included: Yes Quantity: Sold as a pair. Notes: Nozzles include hollow nozzle screws. Holley Accelerator Pump Discharge Nozzles Holley accelerator pump discharge nozzles are invaluable when it comes time to tune
Holley 042 in.Accelerator Pump Discharge Nozzles # HO121-42"Accelerator Pump Discharge Nozzles, Squirters, .042 in., Tube, Pair
Pump Discharge Nozzle Style:
Tube-type
Pump Discharge Nozzle Size (in.):
0.042 in.
Pump Discharge Nozzle Gaskets Included:
Yes
Quantity:
Sold as a pair.
Notes:
Nozzles include hollow nozzle screws.
Holley Accelerator Pump Discharge Nozzles
Holley accelerator pump discharge nozzles are invaluable when it comes time to tune your accelerator pump system. By keeping a good selection on hand, you can effectively adjust the rate of fuel delivered to your engine by switching back and forth between nozzle sizes.
Shipping Notes
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- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 3
Too small and tight
One size fits all is too small for what we needed
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Reviewed in the United States on September 6, 2025
★★★★★ 2
Started coming apart after seeing washing
Look and fit great but they starting coming apart after the second washing
Possibly need stronger thread
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Reviewed in the United States on August 12, 2025
★★★★★ 5
These boot slippers are awesome!
Color: Long Black, Size: 10-13
Love 'em!
FINALLY found these after lots of searches.... I wanted "boot" type slippers FOR MEN, so in the cooler/colder weather my ankles stay warm, as well as my feet. (It's easy to find them for women, but for some reason pretty difficult to find them for men.) Well, Amazon must have added these recently, because I had checked a number of times this past winter/spring to no avail.
At any rate, these are GREAT! I had worn out another somewhat similar pair I had found on Temu a while back, but they were rather floppy and really too large and wide for my feet. After a year or so they had worn out, so I started searching anew, and found these on Amazon. These fit just great and are very well made, having a thick fleece and padded sole inside and a non-slip sole on the outside.
Very, very comfortable! Just what I wanted, and kudos again to Amazon!
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Reviewed in the United States on June 15, 2025
★★★★★ 5
Slippers
Color: Long Black, Size: 10-13
Almost to warm...great on cold mornings!!!
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Reviewed in the United States on March 17, 2026
★★★★★ 1
Not durable, cheaply made for big guys 6’4 235lbs
Color: Gray Navy, Size: 13-16, Color: Gray Navy, Size: 13-16
Don’t recommend for men. Boys maybe but not men. I wore them twice for about 3 hrs before bed. Went to put in the 3rd time and they ripped. It’s literally a small sheet of Sherpa from the shoe and plastic wrap. I also got the bigger size and they still don’t fit right. I bought these right before my trip upstate during the holidays, because I live in Florida. I paid $20+ for these, hoping they would be good. 1/10 recommend
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Reviewed in the United States on January 27, 2026