69683 Radiator Cap Filler Neck Kit
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PROFORMPART NUMBER: 778-69683

69683 Radiator Cap Filler Neck Kit

$8699
ShippingShips on Sep 03, 2026
Lowest PriceLowest Price Guarantee

Filler Neck
Filler Neck Kit
  • Billet Aluminum Radiator Cap Filler Neck
  • Remote Overflow Tube Routing Design
  • Natural Anodized Finish
  • Compatible with Twist-On Cap 69522 (Sold Separately)
  • Improves Underhood Appearance

    The Proform 69683 Radiator Cap Filler Neck Kit is a billet aluminum solution designed to give your cooling system a cleaner, more streamlined appearance. This filler neck features a remote overflow tube routing design to help eliminate the visible overflow tube typically seen with standard radiator caps. Finished in a durable natural anodized coating, it is ideal for custom radiators, fabricated tanks, and high-end engine bay builds when paired with the matching Proform twist-on cap.

    Proform 69683 Radiator Cap Filler Neck Kit Features:

    • Billet aluminum radiator filler neck designed for custom cooling system applications
    • Remote overflow tube routing helps provide a cleaner look than standard radiator caps
    • Natural anodized finish for corrosion resistance and appearance
    • Compatible with Proform twist-on radiator cap 69522 (Sold Separately)
    • Designed for improved packaging and clean overflow hose routing
      • Reliable Cooling System Fill Points Built for Performance

        Proform Radiator Filler Necks deliver durable, fitment-focused cooling system components engineered to support consistent sealing and dependable service access. Built with quality materials and precision-formed construction, these filler necks are designed to handle heat, pressure cycles, and vibration while maintaining secure cap engagement and long-term reliability. With Proform’s performance-oriented approach to engine bay hardware, they provide a confident solution for custom cooling setups, performance upgrades, and demanding applications where consistent coolant containment and serviceability matter.

      Part TypeThermostat Housing Adapter
      Product LineProform Radiator Filler Necks
      BrandPROFORM
      Package Height4.0
      Package Width4.0
      Package Length18.0
      Weight1.0 PG
      Part CategoryAccessories
      Part FitmentSemi Universal
      Vendor Part Number69683
      Package Qty1
      Package TypeEA
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      Some parts are not legal for use in California or other states with similar laws / regulations
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