BMW PowerPak FT Piston Set 87.250mm Bore 6-Cyl

The BMW PowerPak FT Piston Set 87.250mm Bore 6-Cyl is engineered for serious engine builders and performance shops seeking OEM-quality replacement or upgrade pistons for six-cylinder BMW applications. This MAHLE piston set addresses the core need for precision-machined internal engine components that maintain tight tolerances and withstand elevated compression and boost conditions. The 87.250mm bore diameter targets specific BMW inline-six platforms where factory or performance rebuilds demand reliability and repeatability.

Built by MAHLE PISTONS—a tier-one global manufacturer trusted by OEMs and performance builders alike—this piston set incorporates advanced casting and machining processes to achieve consistent wall thickness, precise crown geometry, and optimized ring land sizing. The PowerPak FT designation indicates a forged-top or performance-focused design that resists detonation and thermal stress better than standard cast pistons. Each piston in the set is honed and balanced to exacting specifications, ensuring smooth operation, reduced vibration, and extended ring life across the full cylinder bank.

Engine builders, BMW enthusiasts tackling a full rebuild, and shops preparing engines for forced induction or higher compression ratios will find this piston set invaluable for restoring or enhancing six-cylinder power plants. Installation requires proper honing of cylinder bores, correct ring gap setup, and careful attention to piston-to-cylinder wall clearance and piston-to-valve clearance—standard practices for professional engine assembly. The MPN 930286135 ensures you receive the exact fitment for your target BMW 6-cylinder block; verify your specific engine code and bore size before ordering to guarantee compatibility.