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Porsche > 993 (911) (1994-1998) > Engine Tuning >

Pulleys

Pulleys

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DISPLAYING 1 to 3 (of 3 products)
Fan pulley half. Porsche 964 / 993 - 96410651102, 93010650900, 93010651000, 96410626700, 96410626731, 3609001604 - RS164, RS-164, RS164B, RS-164B, RS164G, RS-164G
4
Fan pulley half. Porsche 964 / 993
3609001604
Product Information
Product Information
Billet aluminium black fan pulley half for single belt hub conversions. 

Fits:
Porsche 964 1989-94
Porsche 993 1995-98

Replacement for Porsche OE numbers 96410651102, 93010650900, 93010651000,

The single fan belt aluminum pulley is a compact and lightweight component designed to efficiently transfer power from the engine to the cooling fan. Its sleek aluminum construction ensures durability while reducing overall weight, allowing for improved engine performance and enhanced fuel efficiency. With its streamlined design, this pulley delivers reliable and smooth operation, contributing to the optimal functioning of the cooling system.

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Related, superseded, cross reference or alternative numbers for comparison.

3609001604
96410651102
93010650900
93010651000
96410626700
96410626731
3609001604

The product you are viewing cross references to these numbers
Fan pulley half. Porsche 964 / 993 - 96410651102, 93010650900, 93010651000, 96410626700, 96410626731 - RS164, RS-164, RS164B, RS-164B, RS164G, RS-164G
2
Fan pulley half. Porsche 964 / 993
RS-164B
Product Information
Product Information
Billet aluminium black fan pulley half.

Replacement for 96410651102, 93010650900, 93010651000,

Fits:
Porsche 964 1989-94
Porsche 993 1995-98

CNC machined from 7075 aircraft alloy and hard anodized for wear. These pulleys are half the weight of the factory part, spin true and make an awesome appearance upgrade.

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Related, superseded, cross reference or alternative numbers for comparison.

RS-164B
96410651102
93010650900
93010651000
96410626700
96410626731

The product you are viewing cross references to these numbers
RS conversion fan hub. Porsche 964 / 993 - 96410605130, 96410605131, 99310605180 - RS079, RS-079
2
RS conversion fan hub. Porsche 964 / 993
99310605180/1
Product Information
Product Information

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
96410605130
96410605131
99310605180

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
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About Pulleys

Porsche Performance Pulleys - Engine Efficiency & Response Upgrades

Engine Pulleys play a vital role in driving auxiliary components such as the alternator, power steering pump, water pump, and air conditioning system. In performance applications, upgraded pulleys can improve engine efficiency, reduce rotational mass, and enhance throttle response—delivering noticeable gains in drivability.

Available from Design911, Porsche performance pulleys are precision-engineered to improve reliability and optimise engine operation, making them an ideal upgrade for tuned, rebuilt, or track-driven vehicles.

What Do Engine Pulleys Do?

Engine pulleys transfer rotational power from the crankshaft to essential engine accessories.

Core Functions:

  • Drive auxiliary systems reliably and efficiently.
  • Maintain correct belt alignment and tension.
  • Regulate accessory speed relative to engine RPM.
  • Support consistent engine cooling and charging.
  • Contribute to smooth engine operation.

Proper pulley function is essential for overall engine reliability.

Why Do Engine Pulleys Fail?

Standard pulleys can degrade over time or under increased engine loads. Common failure causes include:

  • Rubber damper deterioration from heat and age.
  • Cracking or separation in bonded pulleys.
  • Bearing wear in idler or tensioner pulleys.
  • Increased stress from higher RPM and tuning.
  • Belt misalignment due to worn pulley surfaces.

Failed pulleys can cause belt loss, overheating, or loss of charging and power steering.

Why Upgrade to Performance Pulleys?

Performance pulleys are designed to improve durability and efficiency.

Upgrade Benefits:

  • Reduced rotational mass for improved throttle response.
  • Stronger materials for improved longevity.
  • Improved belt alignment and stability at high RPM.
  • Enhanced reliability for tuned and track engines.
  • Supports efficient operation of auxiliary systems.

Upgrading pulleys improves engine responsiveness while reducing the risk of pulley-related failures.

Highlights

  • Porsche performance engine pulleys
  • Improved efficiency and throttle response
  • Designed for tuned and high-RPM engines
  • Durable construction for long-term reliability
  • Essential upgrade during engine rebuilds       

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