Ø140mm / 5.5" Porsche 991.1 GT3 CUP 3.8L Flywheel

Name: Ø140mm / 5.5" Porsche 991.1 GT3 CUP 3.8L Flywheel
Brand: RSX Racing Solutions
SKU: 210601587
Price: 1265.00 EUR
Availability: InStock

Ø140mm / 5.5" Porsche 991.1 GT3 CUP 3.8L Flywheel

SKU:210601587

Weight - 2.95 kg

€1.265,00 EUR

Sale Sold out

Shipping and taxes calculated at checkout. Taxes for destinations outside the EU are not included and will be charged by the customs authorities of the destination country. Due to Brexit, UK customers will have to pay import charges.

Quantity

✅ IN STOCK

Flywheel Design & Key Improvements

Our flywheel retains the same dimensions and weight (2.95 kg) as the Porsche Motorsport flywheel (PN: 99710204192 / 997.102.041.92 / 997-102-041-92) but features several significant upgrades:

✅ One-Piece Design with Integral Ring Gear – Far more reliable than the Porsche Motorsport / Sachs Racing two-piece bolt-on ring gear system.
✅ High-Strength Forged Chromoly Steel (CrMo) – Special nitriding heat treatment provides a 60 HRC surface hardness (twice as hard as the OEM Porsche Motorsport flywheel).
✅ Enhanced Durability & Longevity – Greater resistance to wear, deformation, and heat-related fatigue.

Accessories

✅ Flywheel Grooved Ball Bearing – Equivalent to Porsche Motorsport PN: 93110211102. Included with the flywheel.
✅ Flywheel M10x1.25 Socket Head Screws, Grade 12.9 – Equivalent to Porsche Motorsport PN: 93010220600, but with a shorter head height for increased clearance with the bottom clutch disc. Must be ordered separately.

Applications

✅ Porsche 991.1 GT3 Cup 3.8L (2013-2016)

RSX Racing Solutions

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Let customers speak for us

from 39 reviews

I am very satisfied, the quality is in the details, the phases are made everywhere, there is nothing sharp anywhere, also, at my request, they made a special adapter part for my gearbox, at this stage I am very satisfied

M.B.

06/14/2026