Mazda RX-7 FD3S Fan Relay Covers: Why They Matter

Quick answer

If your FD3S fan relay covers are cracked or missing, replace them with Garage Alpha's new covers to protect the relays and keep your engine bay looking clean.

Diagnosis: Should you replace your fan relay covers?

• Symptom: Your fan relay covers are cracked, faded, or missing. The plastic may be brittle or falling apart. If the cover is intact but just faded, you can keep it — but replacement improves appearance and longevity.
• Likely cause: Heat cycles and UV exposure degrade the original plastic. Mazda didn't offer covers separately, so many owners never replaced them.
• Corrective action: Order Garage Alpha Fan Relay Covers (Product ID: 1244636). They come with a 2-month lead time because they're made-to-order. Install by removing the old cover and snapping the new one into place. Check if you need the optional A/C cover add-on — some FD3S builds have different configurations.
• Stop or choose another option: If your relays themselves are faulty, replacing the cover alone won't fix that. You'll need new relays. Also, if you want an exact OEM look, note that Garage Alpha covers are aftermarket replacements — they match the original shape but are new production. For a full OEM+ restoration, pair these covers with new relays from Mazda.

Product facts

• Mazda RX-7 [FD3S] Fan Relay Covers: Garage Alpha Fan Relay Covers replace faded, rotted and cracking covers with brand new replacements. These covers were NEVER available from Mazda without a full set of relays. You can now replace just the cover instead of buying an entire relay assembly, saving money and keeping your engine bay protected.