Designed specifically for the Porsche 911 GT3 Cup (992, 2021+), the SACHS RCS 3/140 S3.4 is a lightweight, three-disc motorsport clutch engineered for the demanding conditions of professional circuit racing. Developed by ZF Race Engineering, this clutch combines extremely low rotational inertia with high thermal capacity and precise power transmission.
The 140 mm, three-disc sintered-metal design provides a high torque capacity while keeping rotating mass to a minimum. The result is faster engine response, quicker shifts, improved acceleration, and precise clutch modulation during repeated race starts and high-load operation.
The 3.4 mm sintered-metal friction material offers excellent temperature resistance, stable friction characteristics, and strong fade resistance. Compared with thinner friction discs, the 3.4 mm design provides additional thermal reserve and durability while maintaining the low inertia expected from a high-performance RCS motorsport clutch.
The clutch is specifically configured for the 992 GT3 Cup transmission input shaft, ensuring proper fitment and reliable torque transfer.
Key Features
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Genuine SACHS Motorsport / ZF Race Engineering clutch
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Specifically designed for Porsche 911 GT3 Cup (992), 2021+
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RCS 3/140 S3.4 three-disc clutch
- 140 mm compact clutch diameter
- 3 × 3.4 mm sintered-metal friction discs
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Maximum engine torque capacity: 1,450 Nm
- Extremely low rotating mass and inertia
- Designed for faster shifting and acceleration
- High thermal capacity for sprint and endurance racing
- Excellent fade resistance under dry, high-load operation
- High-strength forged aluminum clutch housing
- High-strength steel pressure and intermediate plates
- Vehicle-specific hub profile for the 992 GT3 Cup
- Motorsport-grade construction
- Made in Germany
Technical Specifications
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Application: Porsche 911 GT3 Cup (992)
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Model Year: 2021+
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Clutch Type: SACHS RCS 3/140 S3.4
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Disc Configuration: 3-disc
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Friction Material: Sintered metal
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Friction Disc Thickness: 3.4 mm
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Clutch Diameter: 140 mm
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Maximum Engine Torque: 1,450 Nm
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Release Diameter: 38 mm
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Release Force: 4,200 N
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Release Travel: 4.5 + 0.5 mm
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Clutch Weight: 2.915 kg
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Mass Moment of Inertia: 0.00917 kg·m²
What's Included
- 1 × SACHS RCS 140 aluminum clutch housing (HA140)
- 1 × RCS 140 steel pressure plate (PP140)
- 2 × RCS 140 steel intermediate plates (IP140)
- 3 × RCS 140 3.4 mm sintered-metal clutch discs
- Vehicle-specific hub configuration for Porsche 992 GT3 Cup
Motorsport Performance
The low mass and extremely low moment of inertia of the SACHS RCS clutch allow the engine to transfer power more quickly to the transmission. This helps reduce shift times and improves acceleration, particularly in the lower gears. The three-disc configuration also distributes friction and heat across multiple surfaces for consistent performance during demanding race conditions.
Built for Porsche Cup and other professional motorsport applications, this is a dedicated racing clutch and is not intended as a conventional street replacement.
Application: Porsche 911 GT3 Cup (992), 2021+
For motorsport use. Verify vehicle, transmission, and clutch configuration before ordering.
