BMW 3.0i

Mahle Motorsport Forged Pistons & Conrods

Fits Models: M2, M3, M4

Engine Codes: S55B30A

Mahle Part No: 197879807

OEM Part Number: 11257846333, 11247624615

Bore Size: 84.00 mm

Compression Height (CH): 32.4 mm

Stroke: 89.6 mm

Connecting Rod Length: 144.35 mm

Wrist Pin Diameter: 22 mm

Crown Volume: -10.5 cc

Piston Weight: 325 g

Compression Ratio (CR): 10.2:1

Material: 2618 Forged Alloy

High-performance forged piston set designed for BMW 3.0 S55 engine.

Developed by Mahle Motorsport for maximum strength, reduced weight, and superior thermal stability.

Ideal for performance builds and racing applications, offering OEM-level precision with motorsport durability.

Gemini Enhanced performance connecting rods engineered for BMW S55 engine upgrades and high-power builds.

Features a deep oil passage design, allowing oil to flow directly through the rod body to the pin hole for improved lubrication and cooling.

The reinforced rod body provides exceptional strength and reliability under extreme boost and RPM, making it ideal for performance tuning and engine enhancement applications.

Please see the tabs above for more information.

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