RS conversion fan hub. Porsche 964 / 993  ❭  99310605180

RS Conversion Fan Hub 

Transform your Porsche engine bay with this OE Match RS Conversion Fan Hub, designed to convert the standard dual-belt cooling fan system fitted to the Porsche 964 and Porsche 993 into the single-belt arrangement used on the factory Carrera RS models.

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97

Precision CNC machined from 6061 aircraft-grade aluminium and finished in a durable gloss black anodised coating, this premium-quality conversion hub combines motorsport-inspired appearance with exceptional strength and reliability. It provides a clean, simplified engine bay while reducing the number of drive belts, closely following the design philosophy used on the factory RS models.

Supplied complete with all the necessary fasteners, this OE Match conversion hub is ideal for RS-style engine builds, restorations and enthusiasts looking to enhance both the appearance and functionality of their air-cooled Porsche.

What Does the RS Conversion Fan Hub Do?

The RS Conversion Fan Hub replaces the original twin-belt fan drive arrangement with a single-belt configuration, replicating the system used on factory Porsche 964 RS and 993 RS models.

The conversion offers several advantages:

• Converts the standard dual-belt system to a factory RS-style single-belt drive.
• Simplifies the cooling fan drive assembly.
• Reduces the number of rotating components.
• Creates a cleaner, more purposeful engine bay.
• Maintains precise cooling fan alignment.
• Provides dependable operation under both road and performance driving conditions.

The result is a cleaner engine appearance combined with a proven factory-inspired cooling system layout.

Why Upgrade to an RS Conversion Fan Hub?

Many Porsche owners choose the RS-style single-belt conversion during engine rebuilds or restorations to recreate the appearance and engineering of Porsche's iconic Carrera RS models.

Benefits include:

• Factory RS-inspired appearance.
• Simplified belt arrangement.
• Reduced maintenance compared to the standard twin-belt setup.
• Ideal upgrade during engine rebuilds.
• Perfect for RS tribute and lightweight builds.
• Premium CNC-machined construction.
• Improved engine bay aesthetics.
• High-quality corrosion-resistant finish.

Whether restoring a classic air-cooled Porsche or building an RS-inspired road or track car, this conversion provides the ideal finishing touch.

Premium Engineering

Designed to deliver exceptional strength, precision and long-term reliability.

Benefits

Installing this RS Conversion Fan Hub provides:

• Authentic factory RS appearance.
• Cleaner, simplified engine bay.
• Lightweight aircraft-grade aluminium construction.
• Long-lasting anodised finish.
• Reliable cooling fan drive.
• Excellent fit and dimensional accuracy.
• Straightforward installation.
• Ideal for restoration, fast road and track applications.

Installation Recommendations

Professional installation is recommended.

During installation it is advisable to inspect or replace:

• Cooling fan.
• Alternator.
• Fan housing.
• Fan strap.
• Drive belt.
• Pulley components.
• Bearings.
• Mounting hardware.
• Engine cooling shims.

Replacing associated components during installation helps maximise reliability and ensures the cooling system performs as intended.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99310605180

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