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Holley

Holley Needle and Seat Assemblies 6-521 Carburetor Seats, Holley, Inlet Needle, Titanium, Adjustable, 0.150 in. Seat, Center Hung Float, Gaskets, for 750 cfm or Larger Carb, Each

SKU: HLY6-521

Carburetor Needle and Seats
Holley Needle and Seat Assemblies 6-521 Carburetor Seats, Holley, Inlet Needle, Titanium, Adjustable, 0.150 in. Seat, Center Hung Float, Gaskets, for 750 cfm or Larger Carb, Each

Holley

Holley Needle and Seat Assemblies 6-521 Carburetor Seats, Holley, Inlet Needle, Titanium, Adjustable, 0.150 in. Seat, Center Hung Float, Gaskets, for 750 cfm or Larger Carb, Each

SKU: HLY6-521

Carburetor Needle and Seats
A$105.15
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Holley needle and seat assemblies can be used as replacements or performance upgrades. Available in different sizes, they're also available in different materials to suit a wide range of applications. Viton® needles are for all gasoline applications, steel needles are used with alcohol or exotic race fuels, and titanium needles are used for their responsiveness during changes in flow rates, as well as for their excellent sealing capabilities. Any way you look at it, you're sure to find the right one for your application.

Part Type

.150in Needle & Seat Assembly

Data: v4.2 - Upd: 2026-10-15 03:09:35

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
6-521
Product Attributes - Part Type
Carburetor Needle and Seats
Product Attributes - Product Line
Holley Needle and Seat Assemblies
Product Attributes - UPC
090127465738
Product Attributes - Fuel Bowl Float Style
Center hung
Product Attributes - Seat Size
0.150 in.
Product Attributes - Needle Material
Titanium
Product Attributes - Spring-Loaded
No
Product Attributes - Adjustable
Yes
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Holley
StreetFX SKU hly6-521
SFX Item ID 4782850
Supplier Item Code 4782850
Manufacturer SKU 6-521
Manufacturer UPC 90127465738
Alternative References HOL6-521

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