PORSCHE CAYMAN GT4 PDK TRANSMISSION GEAR CG270 9G230005171

CG270 code (specifically the variant 9G230005171) refers to the high-performance 7-speed PDK Transmission found in the Porsche 718 (982) GT4 and GT4 RS models.

CG270 9G230005171
PORSCHE GT4 PDK
CONDITION NEAR NEW
2,000 KM MILEAGE
WITH WARRANTY

This specific gearbox is the ultimate evolution of the mid-engine PDK platform, optimized for the high-revving 4.0L naturally aspirated flat-six.

Technical Compatibility & Details

This transmission is designed for the 2021–2024 Porsche 718 (982) GT4 and GT4 RS.

• Manufacturer Code: CG270

• Porsche Part Number: 9G2.300.051.71 (Supercedes .70 and earlier variants)

   

• Drivetrain: Rear-Wheel Drive (RWD) Mid-Engine

   

• Differential: Integrated mechanical rear differential lock with Porsche Torque Vectoring (PTV).

• Gear Ratios: The GT4 RS version of the CG270 features shorter, more aggressive gearing compared to the standard Carrera PDK units to ensure maximum acceleration across its 9,000 RPM range.

Fitment Matrix

Professional Listing / Technical Description

If you are adding this to your inventory or quoting a client, this description highlights the unit’s premium status:

Headline: Genuine OEM Porsche 718 GT4 / GT4 RS PDK Transmission (CG270) – 9G230005171

“For sale is a rare, ultra-high-performance OEM Porsche 7-speed PDK Gearbox, code CG270. This unit is the reinforced variant specifically calibrated for the 4.0L naturally aspirated GT engines found in the 718 GT4 and GT4 RS. Featuring motorsport-derived shift speeds and a mechanical limited-slip differential, this transmission is the definitive upgrade or replacement for 982-platform track builds. Removed from a late-model vehicle, ensuring the most recent internal hardware revisions (Part # 9G2.300.051.71).”

Installation & Technical Notes

• GT3 Internals: Unlike standard Cayman PDKs, the CG270 in the RS models borrows internal logic and cooling strategies from the 991.2 GT3, making it much more robust for sustained track use.

• Programming (PIWIS III): This unit requires full adaptation and “Teach-In” using Porsche’s PIWIS III software to sync with the engine’s ECU and the vehicle’s immobilizer.

• Fluid Maintenance: Use only Porsche FFL-3 (Clutch side) and specialized 75W-90 gear oil. Given the high-heat nature of the mid-engine GT4, checking the integrity of the heat exchanger lines during installation is highly recommended.