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SKU: 63486 | UPC: 84663634864
Moroso Weld-On Filler Neck - Billet Aluminum Universal Custom Fit
This Moroso weld-on filler neck in billet aluminum attaches directly to custom fuel tanks for secure fuel filling in race cars and performance vehicles. Its 4-inch inner diameter and precise flange design ensure reliable performance during high-demand racing conditions. The polished finish adds a professional look to any custom fabrication project.
Key Features
- Billet Aluminum Construction: Crafted from strong 6061-T6 aluminum for lightweight durability and corrosion resistance in harsh racing environments
- Exact Dimensions: 4-inch ID neck, 3-1/2-inch height, 5-inch OD flange for straightforward welding and consistent fuel flow
- Polished Finish: Mirror-like surface resists dirt buildup and delivers a high-end appearance on visible tank setups
- Weld-On Mounting: Simple direct weld to tank top provides leak-proof seal without adapters or fittings
- Cap Compatibility: Pairs with Moroso filler caps #68900, #68920, #68930 for complete secure assembly
Product Notes
- Designed for custom fuel tank fabrication in drag racing, circle track, and street performance applications
- Inspect for proper weld penetration to maintain structural integrity
- Packages securely to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Prepare surface with clean aluminum filler rod and TIG welding for best results
- Hardware not included. use existing tank mounting points if applicable
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Fuel Tanks | Race/Performance Builds |
Why Choose Moroso?
- Proven in NHRA and IHRA racing since 1958
- Engineered for high-flow fuel systems in competition
- Machined to tight tolerances for dependable operation
Frequently Asked Questions
-
Q: Which vehicles or applications does this fit?
A: Universal weld-on design fits any custom fuel tank fabrication for dragsters, stock cars, road racers, and performance trucks -
Q: What material and finish are used?
A: Billet 6061-T6 aluminum with polished finish for strength, light weight, and easy cleaning -
Q: What about warranty and installation support?
A: Backed by Moroso limited warranty. consult professional welder for aluminum fabrication to ensure proper fit
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard box, 6 x 6 x 6 inches
- Weight: 0.95 lbs
Filler Necks
Filler necks are the structural tubes that connect a vehicle's fuel cap opening in the body to the fuel tank below, serving as the primary refueling pathway while incorporating anti-rollover valves, vent hoses, and vapor recovery system connections required by modern emissions standards. A damaged or corroded filler neck causes fuel odor inside and outside the vehicle, difficulty seating the fuel cap, fuel cap warning lights on OBD-equipped cars, and potential fuel leak hazards that demand prompt attention. Steel and stainless steel replacement filler necks are available for most domestic and import vehicles, with exact-fit options that replicate the OEM routing and attachment bracket positions for straightforward bolt-on installation. This collection covers replacement filler neck assemblies for passenger cars, trucks, and SUVs across major makes and model years.Popular UpgradesDirect-fit replacement filler neck assemblies for popular rust-prone applications including Ford F-150, C...
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