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Holley Needle & Seat Assembly 1018-135

Holley Needle & Seat Assembly 1018-135
Holley Needle & Seat Assembly 1018-135Holley Needle & Seat Assembly 1018-135Holley Needle & Seat Assembly 1018-135
$232.99 ea
NEWARRIVING SOONEstimated Ship Date 06/22/2023 (If Ordered Today)13 available from HOLLEY PERFORMANCE PRODUCTS as of 06/03/2023
Model: 3990938
Supplier has not provided any fitment data for this product.
[More Info]
Holley offers a number of needle and seat assemblies for its carburetors. The configuration of the needle and seat assembly and its seat size depend on carburetor application, CFM size and type of fuel bowl used. Operation is simple. Needle movement is controlled by a metal tang on the float arm. Upward movement of the float causes the needle to close the seat; downward float movement causes the needle to open the seat. Seat size determines how much fuel can flow at a certain pressure. A bigger seat size will flow more fuel; a smaller seat size will flow less fuel at a given pressure.
  • Adjustable
  • 0.110 in. Seat Size
  • Viton Tip
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!


Download Name File Size


Emission Code 5
Part Type Carburetor Needle and Seat
WARNING CA Proposition 65 WARNING: Cancer and Reproductive Harm


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Holley Needle & Seat Assembly 1018-135:
Classic Nova 2023