High-Precision Billet 4340 Steel Connecting Rod for BMW M57 Engines
Crafted from aerospace-grade 4340 chromoly steel for superior strength and fatigue resistance. CNC-machined with tight tolerances (±0.02mm) to ensure perfect balance and durability under high torque loads. Direct fit for BMW M57/M57D30 engines in 330D, 530D, 730D, X3, X5, and E60/E61/E63/E64/E65/E66 models. Ideal for performance builds, diesel tuning, or OEM replacement. Heat-treated and shot-peened for enhanced stress distribution. Weight-matched set reduces engine vibration. Includes ARP2000-rated bolts (sold separately for custom setups).
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