Product Description
BMW S54 Piston Set - ItalianRP IRPP037ADA
The ItalianRP pistons are precision-engineered components designed for the BMW M3's S54B32 3.2L 24-valve naturally aspirated engine, commonly found in the E46 M3. These pistons are available in three variants—Silver, Gold, and Platinum—each offering different material compositions to suit various performance needs. The Silver line is crafted from 4032 aluminum alloy, providing a balance between strength and thermal expansion. The Gold line utilizes 2618 aluminum alloy, known for its high strength and resistance to heat, making it suitable for high-performance applications. The Platinum line also uses 2618 aluminum alloy but is forged from billet, offering superior strength and durability for extreme performance conditions.
Each piston is engineered with a double bridge construction, a feature derived from Formula 1 technology, enhancing rigidity and reducing distortion under high loads. They are designed to maintain the OEM stroke and compression ratio, ensuring compatibility with the stock engine setup. With a compression ratio of 8.80:1 and a compression height of 32.30 mm, these pistons are ideal for enthusiasts looking to upgrade their engine components for improved performance, whether for daily driving or track use.
| Features | Specifications |
|---|---|
| Piston Code | IRPP037ADA |
| Rod Code | IRPC031 |
| Engine Code | S54 |
| Number of Cylinders | 6 |
| Stroke | 91.00 |
| Compression Ratios | 12.00:1 |
| Compression Height | 32.30 |
| Bore Size | 87.00 and 87.50mm |
| Compatible Models | Naturally aspirated S54 |
| 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.