Description

Carburetor Jet – 0.040 in ID – Number 40 – Brass – Holley Carburetors – Pair

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About HOLLEY

A leader in fuel systems for over 100 years, Holley fuel management systems have powered top circle track and drag racing teams around the world. Now, Holley offers EFI systems for GM's LS engine, among many other applications. Holley's products also include performance fuel pumps, intake manifolds, and engine accessories products for street performance, race, and marine applications.

Reviews

There are no reviews yet.

Be the first to review “HOLLEY Main Jets (2) 122-40”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PAINLESS WIRING Repl Large Switch Kit 80121

    SKU: PWI80121
    Product information
    • Weight1.1 lbs
    • Dimensions12.5 × 7.5 × 2.25 in
    • Quantity

      Kit

    • Switch 1 Intended Application

      Headlight

    • Switch 1 Activation Method

      Pull, Rotary

    • Switch 1 On/Off/Momentary

      Off/On/On

    • Switch 1 Rheostat

      Yes

    Details...
    Original price was: $47.99.Current price is: $39.99.Add to cart
    Original price was: $47.99.Current price is: $39.99.
    Quantity Only 8 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PYROTECT Jacket Junior Large Black SFI-1 JJ100220

    SKU: PYRJJ100220
    Product information
    • Weight1.315 lbs
    • Dimensions17.35 × 15.4 × 3.25 in
    • Size

      Youth Large

    • Sfi Rating

      3.2A/1

    • Material

      Fire Retardant Fabric

    • Color

      Black

    • Quantity

      Each

    Details...
    Original price was: $109.00.Current price is: $99.00.Add to cart
    Original price was: $109.00.Current price is: $99.00.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    RATECH Basic Kit GM 7.5in & 7.625in 408K

    SKU: RAT408K
    Product information
    • Weight0.645 lbs
    • Dimensions6.85 × 6.8 × 3.85 in
    • Product Line

      Basic Kit

    • Quantity

      Kit

    • Pinion Depth Shims Included

      Yes

    • Crush Sleeve Included

      Yes

    • Cover Gasket Included

      Yes

    Details...
    Original price was: $20.42.Current price is: $18.56.Add to cart
    Original price was: $20.42.Current price is: $18.56.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOOG Idler Arm K6099

    SKU: MOGK6099
    Product information
    • Weight3.67 lbs
    • Dimensions10.5 × 8.1 × 2.3 in
    • Material

      Steel

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Each

    • Greasable

      Yes

    Details...
    Original price was: $94.95.Current price is: $86.32.Add to cart
    Original price was: $94.95.Current price is: $86.32.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    Ti22 PERFORMANCE 600 Front Spindle Right Black TIP3525

    SKU: TIP3525
    Product information
    • Weight1.5 lbs
    • Dimensions7.3 × 6.7 × 6.3 in
    • Material

      Aluminum

    • Color

      Black

    • Finish

      Anodized

    • Quantity

      Kit

    • Variant

      Yes

    Details...
    Original price was: $136.79.Current price is: $113.99.Add to cart
    Original price was: $136.79.Current price is: $113.99.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    TRANS-DAPT Bb Mopar Alternator Brck 9457

    SKU: TRA9457
    Product information
    • Weight1.01 lbs
    • Dimensions7.9 × 7.9 × 1.65 in
    • Driver / Passenger Side Mount

      Passenger Side

    • Block / Head / Water Pump Mount

      Head

    • Adjustment Length

      4 in

    • Material

      Steel

    • Color

      Chrome

    Details...
    Original price was: $28.13.Current price is: $25.57.Add to cart
    Original price was: $28.13.Current price is: $25.57.
    Quantity Only 9 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOLLEY Main Jets (2) 122-56

    SKU: HLY122-56
    Product information
    • Weight0.025 lbs
    • Dimensions5 × 3.5 × 0.55 in
    • Fuel Type

      Gasoline

    • Inside Diameter

      0.0550 in

    • Jet Number

      56.0

    • Style

      Main

    • Thread

      1/4-32 in

    Details...
    Original price was: $17.00.Current price is: $14.69.Add to cart
    Original price was: $17.00.Current price is: $14.69.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    FRAGOLA #3 Union Fitting 481503
    Add to wishlist

    FRAGOLA #3 Union Fitting 481503

    SKU: FRG481503
    Product information
    • Weight0.03 lbs
    • Dimensions4.3 × 1.9 × 1.1 in
    • Style

      Straight

    • Material

      Aluminum

    • Color

      Blue

    • Finish

      Anodized

    • Quantity

      Each

    Details...
    Original price was: $4.14.Current price is: $3.76.Add to cart
    Original price was: $4.14.Current price is: $3.76.
    Quantity Only 6 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    FLOWMASTER Super 40 Series Muffler 953045
    Add to wishlist

    FLOWMASTER Super 40 Series Muffler 953045

    SKU: FLO953045
    Product information
    • Weight12.86 lbs
    • Dimensions21 × 10.9 × 5.65 in
    • Product Line

      Super 40 Series

    • Internal Construction

      Chambered

    • Base Construction

      Welded

    • Case Shape

      Oval

    • Case Length

      13.5 in

    Details...
    Original price was: $165.00.Current price is: $149.95.Add to cart
    Original price was: $165.00.Current price is: $149.95.Add to wishlist
  • Add to wishlist
    Sale
    DEE ZEE Triangle Trailer Tool Box Large DZ 91717
    Add to wishlist

    DEE ZEE Triangle Trailer Tool Box Large DZ 91717

    SKU: DZZ91717
    Product information
    • Weight26.2 lbs
    • Dimensions36 × 24 × 21 in
    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Each

    • Intended Mounting Location

      Trailer Tongue

    Details...
    Original price was: $393.45.Current price is: $357.68.Add to cart
    Original price was: $393.45.Current price is: $357.68.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist

    59