GReddy Differential Cover

1993–1995 Mazda RX-7 13B-REW

Part #: 14540401

Overview

The GReddy Differential Cover is a high-performance upgrade designed specifically for the Mazda RX-7 models from 1993 to 1995 equipped with the 13B-REW engine. Crafted to enhance the durability and cooling capacity of your vehicle's differential, this component is ideal for enthusiasts who push their cars on the street, track, or off-road adventures. By replacing the factory cover with the GReddy Differential Cover, you’ll benefit from improved heat dissipation, increased strength, and a sleek, race-inspired appearance.

Whether you're building a high-powered street machine or a dedicated track car, this differential cover helps support the demands of spirited driving and aggressive tuning. Its robust construction ensures long-lasting performance, reducing the risk of differential failure under demanding conditions. Plus, the stylish design adds a performance-oriented look to your engine bay, making it a perfect upgrade for Mazda RX-7 owners seeking both form and function.

Key Features

The GReddy Differential Cover is engineered with performance and durability in mind, featuring several key attributes:

• Constructed from high-quality aluminum alloy for excellent strength-to-weight ratio and corrosion resistance.
• Designed with a finned exterior to improve heat dissipation, helping to keep differential temperatures lower during intense driving sessions.
• Precision-machined mounting surfaces ensure a perfect fit with factory mounting points, simplifying installation.
• Reinforced ribbing and thicker walls provide enhanced structural integrity, reducing the risk of differential housing cracks or leaks.
• Includes drain plug for easy oil changes and maintenance, promoting optimal differential lubrication and longevity.
• Finished with a durable anodized coating for corrosion resistance and a sleek, race-inspired appearance.
• Compatible with factory differential components, making it a straightforward upgrade without the need for extensive modifications.

Construction & Design

The GReddy Differential Cover is meticulously crafted from high-grade aluminum alloy, ensuring a lightweight yet durable component capable of withstanding the rigors of high-performance driving. Its finned design not only adds a distinctive aesthetic but also significantly improves heat transfer, helping to maintain optimal operating temperatures during aggressive driving or track use. The cover features reinforced ribs and thicker walls to provide additional strength, preventing deformation or cracking under stress.

Manufactured with precision machining, the cover fits seamlessly onto the factory differential housing, ensuring a secure and leak-free seal. The anodized finish enhances corrosion resistance, maintaining its appearance and performance over time. Overall, the design balances form and function, offering a reliable upgrade that enhances both the look and the cooling efficiency of your Mazda RX-7’s differential.

Performance & Sound

While this differential cover does not directly increase horsepower or torque, it plays a crucial role in supporting your vehicle’s performance by improving differential cooling and structural integrity. Better heat dissipation helps prevent differential overheating during spirited driving, which can contribute to more consistent performance and longer component lifespan. The installation of this cover can also reduce differential noise and vibrations associated with heat-related expansion and contraction.

Installation & Fitment

The GReddy Differential Cover is designed as a direct bolt-on replacement for the factory cover on 1993–1995 Mazda RX-7 models with the 13B-REW engine. Installation is straightforward, requiring basic hand tools. No cutting, drilling, or complex modifications are necessary. It is recommended to drain the differential oil before installation and to replace the oil drain plug gasket to ensure a proper seal. For optimal performance, consider inspecting and replacing differential fluid during installation.

• Simple bolt-on installation with standard hand tools
• No cutting, drilling, or tuning required
• Includes drain plug for easy maintenance

What's Included

• GReddy Differential Cover
• Drain plug with crush washer
• Mounting hardware and instructions

Ideal For

• Mazda RX-7 owners seeking improved differential cooling and durability
• Performance enthusiasts building street or track cars
• Anyone looking to enhance the appearance of their engine bay with a race-inspired component

Emissions Note

This product is designed for off-road or racing use only and may not be legal for use on public roads in all jurisdictions. Please check local regulations before installation.