Product Description
BMW N55 Piston Set - ItalianRP IRPP505DA
The ItalianRP piston is a high-performance upgrade designed specifically for BMW’s N55B30 3.0L engine, found in models like the 135i, 335i, 435i, 535i, and various X-series and M variants. Made from strong 2618 forged aluminum, it features a double-bridge design that adds durability and strength—perfect for engines that see high boost or aggressive driving. With bore options of 84.00mm and 84.50mm and compression ratio options of 9.50:1 and 10.2:1 it keeps the stock stroke and compression height, making it a direct-fit upgrade without needing major modifications. These pistons are available in different line options like Silver, Gold, and Platinum, they offer flexibility depending on your performance goals. Whether you're building a reliable street car or a track-ready beast, these pistons are a solid choice for getting the most out of your N55 engine.
Features | Specifications |
---|---|
Piston Code | IRPP505DA |
Rod Code | IRPR504 |
Engine Code | N55 |
Number of Cylinders | 6 |
Stroke | OEM |
Compression Ratios | 9.50:1, and 10.20:1 |
Compression Height | OEM |
Bore Size | 84.00 and 84.50 mm |
Compatible Models | 135i, M2, M235i, M235i xDrive, 335i, 335i xDrive, 435i, 435i xDrive, 535i, 535i xDrive, 640i, 640i xDrive, 740i, 740iL, 740iL xDrive, X1 xDrive35i, X3 xDrive35i, X3 sDrive35i, X4 xDrive35i, X4 M40i, X5 xDrive35i, X5 sDrive35i, X6 xDrive35i, and X6 sDrive35i |
Included Components | Pistons, Rings, Wrist Pins |
Material | 2618 Aluminum Alloy |
Manufacturing Origin | Italy |
ItalianRP is a performance engine component manufacturer based in Italy, specializing in high-quality forged pistons and connecting rods for European and Japanese engines. Known for their motorsport heritage and precision craftsmanship, ItalianRP parts are designed and built in-house using top-grade materials like 2618 aluminum and 4340 steel. Every component undergoes rigorous quality control and is CNC-machined to exacting tolerances, ensuring reliable performance in everything from street builds to full race applications. With a growing presence in North America through ItalianRP USA, the brand brings together Italian engineering excellence and a passion for pushing automotive limits.