#4 to #3 Flare Seal Reducer A1P9500403

When you're running tight fuel or coolant lines, adapter fittings are non-negotiable—they ensure leak-free connections between mismatched AN line sizes without compromising flow or introducing weak points. This #4 to #3 flare seal reducer gives you a straightforward solution for stepping down from larger to smaller plumbing, using proven aluminum construction and anodized durability that handles both street and race conditions. Whether you're custom-routing lines or adapting existing components, this fitting delivers the reliability you need at a critical junction point.

• 4 AN Female inlet
• 3 AN Male outlet
• Straight configuration
• Aluminum construction
• Blue anodized finish
• Flare seal design
• Sold individually
• MPN: A1P9500403