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REVOLUTION Big Cooling Diff Cover for Mazda RX8 (Series 1, 2003-2008)

Upgrade the rear-end cooling and rigidity with a finned diff cover that improves oil control, heat dissipation, and durability under hard use.

$690

The stock RX8 differential case is a known weak point, prone to flexing and even breaking under hard use. This high-rigidity cover from Revolution is a comprehensive solution, with an average thickness of 5–10mm (compared to 3mm OEM) and upgraded bolts that act as knock pins. It ensures your side bearing preload and gear contact remain stable, extending the life of your differential.

  • Increases differential oil capacity by 750cc for improved cooling.
  • Features large cooling fins to further stabilise oil temperatures.
  • Significantly increases the rigidity of the differential housing to prevent flex and failure.
  • Upgraded bolt system acts as dowels to securely locate the cover and add strength.
  • Includes a service hole to allow for the installation of an external oil cooler.

This is the ultimate upgrade for drivetrain reliability. It gives you the confidence to launch the car and use it aggressively, knowing that the differential is properly supported and lubricated to handle the stress.

Additional information

RX8 Model

SKU RV-DCF-S1 Categories , , Types , , Brand:

Related RX8 Upgrades

This cooling diff cover is one of the best Mazda RX-8 upgrades you can make to your Series 1 (2003-2008). Differential cooling mods are among the top Aftermarket mods you can buy from REVOLUTION for owners who want better performance and reliability from their RX8. If you are looking for cooling diff covers for sale for sale in Brisbane (QLD), Sydney (NSW), Melbourne (VIC), Canberra (ACT), Adelaide (SA), Darwin (NT) or Perth (WA), you’ll find high-quality Japanese Bracing upgrades at RX8 Upgrades.