FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank
FD3S RX7 S6-8 AST Tank

FD3S RX7 S6-8 AST Tank

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Upgrade your RX-7’s cooling system with the Vinny Fab Upper Water Neck, a direct replacement for the factory unit—precision-engineered for performance, reliability, and style.

Machined from our Vinny Fab 12 mm thick CNC billet flange, this unit ensures a perfect seal and long-lasting durability. Dual sensor ports, and is available in multiple finishes to suit your build’s look.

Features & Benefits

  • Direct Factory Replacement: Bolts straight on with no modifications required.

  • 12 mm CNC-Machined Flange: Made in-house for maximum strength and sealing integrity.

  • Dual Sensor Ports:

    • M12 x 1.25 port for water-level sensor

    • 1/8” NPT port with blanking bung included

  • Tube Options: Choose between 16 AN or 38 mm outlet to match your setup.

  • Finish Options: Raw / Brushed, Polished, Satin Black, or Textured Black.

  • Updated Design: Now clears overdrive pulleys for water pump compatibility.

  • Compatibility: Not suitable for twin-turbo setups.

  • Note: Radiator cap not included- Made to suit the stock high pressure cap

Precision-built for rotary reliability and clean aesthetics — this is the perfect upgrade for street or track FD3S builds.

FAQs

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Free shipping will automatically be applied to all domestic orders over $75. Simply add over $75 to your cart and you will see the discount while checking out.

Shipping is free for orders over $75. For all other domestic orders shipping is $10. International shipping is $20.

We typically ship orders out within 1-2 business days of ordering. From there shipping may take 3-5 business days. For international orders shipping can take between 7-14 business days.

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