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Holley
SKU 122-49

Holley 122-49 Carburetor Standard Main Jet Standard Main Jet, 1/4-32 Thread, .048 Jet Size Jet Number 49.0

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With a.048 inch orifice diameter, Holley part 122-49 is a brass main jet that controls fuel flow into the carburetor metering system for engine tuning purposes. Sized by actual flow and flow tested to ensure accuracy and consistency, this jet features a head diameter of 0.31 inch, a total length of 0.35 inch, and a 1/4-32 thread size for secure installation into compatible carburetors. The jet is compatible with Holley Model 2010, 2300, 4010, 4011, 4150, 4160 and 4500 carburetors, with available sizes ranging from 40 to 110 for different fuel flow requirements.

  • Jet Number: 49.0
  • Jet Size: 0.048 inch
  • Head Diameter: 0.31 inch
  • Length: 0.35 inch
  • Thread Diameter: 1/4-32
  • Material: Brass
  • Grade Type: Performance
  • Available Sizes: 40-110
  • Thread Diameter: 1/4-32 Inch

Weight: 0.03 lb

Country of Origin: United States

Product resources

California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.

Universal Fit. This part is not vehicle specific and does not use a vehicle fitment list. Please confirm the specifications and measurements fit your vehicle before ordering. Making sure it fits is the customer's responsibility.
A vehicle fitment list isn’t available for this part.

Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.

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Shipping: Free to the USA.

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