Filler Neck - Weld-On - Cap Style - 1/16 in NPT Port - 5/16 Hose Barb Fitting Included - Aluminum - Natural - Universal - Each

Vibrant Weld On Radiator Filler Neck - 32mm ID (1.25in)

Vibrant Performance Radiator Filler Necks are CNC Machined from durable 6061 Aluminum Alloy. They include a barbed nipple for plumbing to an expansion tank. Available in two sizes and are compatible with Vibrant Performance high pressure Aluminum Radiator Caps. Replacement Hose Barb Fitting part #11642F.

Part Type

Engine Coolant Filler Neck

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Radiator Filler Necks, Weld-on, Billet Aluminum, Natural, 1.250 in. I.D., Each

Vibrant Performance radiator filler necks feature 6061 aluminum construction. They weld-on, include hose barb fitting, and are offered in two sizes. Mate them with their matching caps (sold separately) for the proper sealing.