These bearings replace factory BMW rod bearings

and 11121401351 for the S38B35

Engineered with aircraft-grade steel

a custom Chromoly CV cage

Manley Forged Piston Set, BMW N55 / S55 4A-GE These bearings replace factory BMWManley Platinum Series pistons are meticulously crafted with top tier materials and engineering, ideal for professional engine builders and tuners seeking both performance and longevity. Crafted from 2618 alloy forgings, sourced domestically for superior quality, strength, and performance, these pistons ensure optimal performance under high stress conditions. Paired with premium Chrome Moly wrist pins, or optional 9310 alloy upgrade for additional