PORSCHE CAYMAN 718 manual gearbox 2.0 G8200

The G82.00 (or G8200) is the specific 6-speed manual transmission designed for the Porsche 718 Cayman and Boxster (982) equipped with the 2.0L turbocharged 4-cylinder engine.

While the 2.5L “S” models and 4.0L GTS models use variations of this gearbox (like the G82.20), the G82.00 is tuned specifically for the 300 hp / 280 lb-ft output of the base 2.0L engine.

1. Technical Specifications

The G82.00 is a mid-engine transaxle unit known for its “long” gearing—a common talking point among Porsche enthusiasts, as it allows the car to reach highway speeds in 2nd gear.

• Transmission Type: 6-speed Manual with integrated differential.

• Torque Limit: Officially rated for $380\text{ Nm}$ ($280\text{ lb-ft}$) to match the 2.0L engine’s peak output.

• Gear Ratios (Approximate):

  • 1st: $3.31$

  • 2nd: $1.95$

  • 3rd: $1.41$

  • 4th: $1.13$

  • 5th: $0.95$

  • 6th: $0.81$

  • Final Drive: $3.89$

2. Part Numbers & Identification

When sourcing a replacement or checking compatibility, look for these OEM reference numbers:

• Main Part Number: 982-300-041 (with suffixes A, B, or C depending on the revision year).

• ID Tag: Will be stamped with G82.00.

3. Maintenance & Fluids

Porsche officially considers the manual gearbox oil a “long-life” fluid, but for track use or high-mileage cars, a change is recommended every 120,000 miles or 12 years (often sooner by owners).

• Oil Type: Fully Synthetic Gear Oil 75W-90 (API GL-4 or GL-5).

• Fill Capacity: Approximately $3.2\text{ Liters}$ ($3.4\text{ Quarts}$).

• Drain/Fill Plugs: Requires a $10\text{mm}$ Hex (Allen) bit. Note: Always remove the fill plug before the drain plug to ensure you can refill the unit.