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SKU: 20982 | UPC: 690092152444
Vibrant Weld On Radiator Filler Neck - 42mm ID (1.65in) - Universal
This weld-on radiator filler neck from Vibrant Performance installs directly onto custom radiator top tanks for secure coolant filling in high-performance builds. Ideal for dragsters race cars and modified vehicles it ensures reliable access to coolant levels without leaks. Crafted for demanding motorsport conditions it delivers consistent performance and long-term durability.
Key Features
- 42mm (1.65in) Inner Diameter: Matches standard radiator hoses and caps for a precise leak-proof connection
- 6061-T6 Billet Aluminum: Provides strength-to-weight advantage and resistance to corrosion in extreme heat
- Black Anodized Finish: Resists scratches and oxidation while giving a professional race-ready look
- Weld-On Flange Design: 62.7mm (2.47in) OD flange enables direct TIG welding to aluminum or steel radiator tanks
- Compact 63.5mm (2.5in) Neck Height: Fits tight engine bays without compromising coolant capacity or accessibility
Product Notes
- Designed for custom fabrication clean surfaces thoroughly before welding
- Compatible with standard 1.65in radiator caps for secure pressure retention
- Lightweight component ships quickly with minimal packaging
Installation Notes
- Professional installation recommended.
- TIG weld using aluminum filler rod for strongest bond
- Compatible with 6061 aluminum or mild steel radiator tanks prep with 3mm thick flange match
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | All Vehicles | Custom Fabrication |
Why Choose Vibrant Performance?
- Trusted by industry professionals worldwide for consistent results
- Manufactured to highest quality and reliability standards
- Complete range of oil and cooling components for any application
Frequently Asked Questions
-
Q: Does this filler neck fit specific vehicles?
A: Universal design welds to any custom radiator top tank in performance cars dragsters and race applications with 42mm ID opening -
Q: What material and finish are used?
A: Machined from 6061-T6 billet aluminum with durable black anodized coating for heat and wear resistance -
Q: Is welding equipment included and what type?
A: No hardware included TIG welding recommended with proper aluminum rod and argon shielding gas for professional results
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Compact protective box 3 x 3 x 3 inches
- Weight: 0.30 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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