Best Aluminum Fuel Tank Filler Necks in 2026

FUNCTION: The Fuel Filler Door Housing Hinge Pocket allows you to open the fuel cap and put the fuel nozzle for refilling. If your original gas door housing began to malfunction and it may not close properly, it need to be replaced.

HIGH QUALITY: The gas cap hinge is made of Aluminum and Stainless Steel for long durability and reliability. Direct replacement and easy installation, meets or exceeds OEM standards, 100% tested before shipping.

REPLACES PART NUMBER:4L3Z-9927936-BA, 924-801, 4L3Z9927936BA, 924801

▶️ 1.5" ID Neck Diameter

▶️ Raises Filler Neck 2.75" from Base

▶️ Fits Fuel Cells using 12-Bolt Base

1. 5" ID Neck Diameter

Raises Filler Neck 2. 75" from Base

Fits Fuel Cells using 12-Bolt Base

Universal Usage: This fuel tankis suitable for welding on 2 inch inner diameter pipe interface. It is manufactured according to the original factory standards and is very suitable for your model.

Universal Usage: This fuel tankis suitable for welding on 2 inch inner diameter pipe interface. It is manufactured according to the original factory standards and is very suitable for your model.

Universal Usage: This fuel tankis suitable for welding on 2 inch inner diameter pipe interface. It is manufactured according to the original factory standards and is very suitable for your model.

1.5" ID Neck Diameter, Raises Filler Neck 2.75" from Base, 45 Degree Neck Angle

Fits Fuel Cells using 12-Bolt Base

Powder Coated Finish, Steel Base, Aluminum Cap.

Locates filler neck at highest point on cars

Made of 356-T6 cast aluminum

3-1/4" high

Flange will bolt to your fuel cell to permit attachment of a 1.5" I.D. filler hose

The fill tube comes off of the flange at a 90-degree angle

Features a laser-etched center mark which allows you to easily locate and attach a fuel level sending unit

12 mounting holes on a 5.38" bolt circle

Includes mount ring, bolts, and gasket

Uses 2" I.D. filler hose

Fuel Cell Filler Neck Material: 6061-T6 Aluminum Alloy.

Fuel Cell Filler Neck Cap Material: 6061-T6 Aluminum Alloy.

Fuel Cell Filler 12 Bolt Flange Material: 6061-T6 Aluminum Alloy.

Fuel Cell Filler 12 Bolt Flange OD: 5.5" (140mm).

Fuel Cell Filler Neck OD: 57mm.

Fuel Cell Filler Neck Material: 6061-T6 Aluminum Alloy.

[Scope of Application] Suitable for oil collection tank, fuel tank, water tank, dry fuel tank, etc.

[High-quality Material] The aluminum alloy filler neck is made of high-quality aviation aluminum, which has good strength and welding performance.

[High Precision] The filler neck meets the requirements of aviation hose joints and requires high precision for precision machine tools.

Moroso Water Neck Manifold 2-5/16 in Tall Aluminum Chevy V8 P/N 63422

Package Dimension : 23.876 centimeters L x 19.304 centimeters W x 10.414 centimeters H

Fit type: Vehicle Specific

Moroso Water Neck Manifold Kit 3-1/4 in Tall Aluminum Chevy V8 P/N 63424

Package Dimension : 11.176 centimeters L x 11.176 centimeters W x 14.224 centimeters H

Fit type: Vehicle Specific

1.fuel cap MATERIAL: High quality aviation aluminum for good strength and welding properties

2.fuel tank cap FILLER NECK: Smooth finished design, durable and long lasting

3. fuel neck and cap STANDARD: It meets aviation hose fitting requirements, precision machine tool to precision tolerance

Made from 6061-T6 billet aluminum  This weld-on version can be used wherever a heavy-duty, custom-application filler neck is required Includes screw-in 1/8" NPT hose fitting for expansion tanks, and accepts Moroso or standard-size radiator cap (not included)  Ideal for all forms of racing and street-performance applications

Part number: 63486

Fit type: Vehicle Specific

【Package Included】1 x Black Fuel Tank Cap,1 x Silver Flange Cap,1 x Seal O-Ring

【Features】Overflow coolant tank caps are designed to fit OEM coolant tanks with a threaded fill neck Complete replacement caps are machined from billet aluminum, with a polished surface comes with pressure cap.

【Application】 The weld on filler neck and cap is suitable for oil tanks, fuel tanks, water tanks, dry fuel tanks.

Part number: 63485

Fit type: Vehicle Specific

Oem equivalent part number: 63485

Are spliced into the upper radiator hose to add a raised fill point for complete cooling system filling and

Extended Filler Necks are 4" tall from the center of the hose inlets to the top of the radiator neck, this allows

Constructed out of 356-T6 cast aluminum bottom, aluminum tubing center and a billet aluminum radiator

Universal Fit

4.88" overall diameter

6 x 4.36" bolt pattern

Includes Weld On Steel Mounting Bracket.

Ideal For Mounting The Filler Cap Outside The Vehicle And Running A Hose To Your Fuel Tank Or Fuel Cell

2" Filler Hose Is Required.

FILLER NECK, CHEVY, BILET ALUMINUM, O-RING GASKET, -20AN & 3/8” NPT PORTS Fits: Small Block, Big Block, and 90° V6 Chevy Intake Manifolds Features two 3/8" N.P.T. female ports to plumb water to cylinder head for cooling Includes stainless steel mounting hardware

Are spliced into the upper radiator hose to add a raised fill point for complete cooling system filling and

Extended Filler Necks are 4" tall from the center of the hose inlets to the top of the radiator neck, this allows

Constructed out of 356-T6 cast aluminum bottom, aluminum tubing center and a billet aluminum radiator

Are spliced into the upper radiator hose to add a raised fill point for complete cooling system filling and

Extended Filler Necks are 4" tall from the center of the hose inlets to the top of the radiator neck, this allows

Constructed out of 356-T6 cast aluminum bottom, aluminum tubing center and a billet aluminum radiator

Accepts Small Radiator Caps, SAE Type B/43mm Made from 6061-T6 billet aluminum This weld-on version can be used wherever a heavy-duty, custom-application filler neck is required Includes screw-in hose fitting for recovery tanks

【Durable Material】: Weld On Filler Cap is made of high‑quality aluminum alloy materials, firm, anti‑rust, and durable in use

【High Performance】: Aluminum Alloy Filler Neck Cap is precision-machined to exact tolerances for trouble-free performance, has excellent mechanical stability and corrosion resistance for high reliability

【Application】: This fuel tank cap is suitable for welding on 2 inch inner diameter pipe interface. Please carefully check whether it is suitable for aluminum fuel filler neck before purchase