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Holley

HOLLEY Needle & Seat

MPN: 6-519-2 Catalog #: 001510090 Category: Carburetor Needle And Seats Check Vehicle Fitment

Product Details

Needle and Seat - Adjustable - 0.150 Orifice - Steel - Holley Carburetors - Pair

Inlet Needle Steel; Seat Size 0.15 in.; Adjustable;

Steel-tipped inlet needles are necessary when using exotic racing fuels or alcohol or when using benzene or acetone additives. A .097 inch seat size should be used for small four barrel carburetors, a .110 inch seat size should be used for Carburetors up to 735 CFM, larger seat sizes should be used with Carburetors 750 CFM and larger. The following steel inlet needle and seat assemblies are available from Holley.

Fitment: Steel-tipped inlet needles are necessary when using exotic racing fuels. A .097in. seat size should be used for small four barrel carburetors; a .110in. seat size should be used for carburetors up to 735 CFM; larger seat sizes should be used with carburetors 750 CFM and larger. The following steel inlet needle and seat assemblies are available from Holley.

DETAILS:

Part Number 6-519-2 SPECS:

DETAILS:

  • 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
  • Carburetor Needle and Seat
  • Inlet Needle Steel
  • Adjustable
  • Compatible With Alcohol Benzine Or Acetone Additives
  • Operation Is Simple
  • Steel Inlet Needle
  • NEEDLE/SEAT;.150 STEEL
  • CrbNeedle/Seat

Part Number 6-519-2 SPECS:

  • WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • WARNING CA Proposition 65: Yes

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Product Specs

Brand
Holley
Part Number
6-519-2
Catalog Number
001510090
Product Line
Carburetor Needle and Seats
Category
Fuel Delivery
Type
Carburetor Needle And Seats
UPC / Barcode
090127424117
Length
5.00 in
Width
3.45 in
Height
1.25 in
Weight
0.06 lb
Ship Alone
No
Air Restricted
No

Shipping & Availability

Current status 11 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

Inventory shown: 11 available as of 6/3/2026.

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