01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML King Standard Connecting Rod Bearing Set

Fits: 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML 

The connecting-rod bearings allow the rods’ big ends to rotate freely on the crankshaft journals, maintaining proper clearance, oil film lubrication, and reducing friction and wear. For engines built (or rebuilt) to stock specifications — standard journal size, moderate loading, and regular duty — CR8059CP offers a relatively affordable way to restore or maintain proper rod-to-crank bearing surfaces. The set is commonly used as part of a rebuild or refresh, especially if the rods and crank are in spec and the build does not expect high stress (boost, racing, high torque, heavy towing, etc.).

Not designed for heavy stress / high-demand use: CP bearings are “medium-load / OE-replacement” — under extreme conditions (tuning, high boost, heavy towing, high torque, high RPM), their margin is lower compared to performance bearings.

No extra “safety margin” overhead: If you expect increased cylinder pressures, high loads, or increased wear, a stronger bearing with a more robust overlay/coating may be wiser.

Depends on underlying journal/rod condition: Bearings are only half the equation — if crank or rods are worn, out-of-round, undersized, or machined, using standard bearings without proper machining can cause rapid wear/failure.

Limited oil-film tolerance under abuse: Under high load / occasional oil-starvation, copper-based tri-metal bearings don’t offer the same protection as “race-series” or “high-load” bearings with advanced overlays.

King: CR8059CP