Crankshaft Main Bearing Set — Standard Size

Restore smooth, quiet running with an OEM-spec crankshaft main bearing set ⚙️. Ideal for engine rebuilds or bottom-end refresh, it brings back precise oil clearances, stable pressure, and proper support for the rotating assembly.

Why this part is needed

Main bearings keep the crankshaft centered, cut friction, and hold oil pressure. Fresh shells minimize vibration, protect journals during cold starts, and reduce wear for long engine life ?.

How it works

Each crank journal runs in two half-shells (steel back with babbitt/aluminum overlay). Pressurized oil forms a hydrodynamic wedge, carrying load without metal-to-metal contact and keeping the crank aligned ?.

If worn or damaged

Symptoms include low oil pressure, start-up knock, metal glitter in the oil, rising temps, and in severe cases a spun bearing or seized crank ❗ Delayed repair risks journal regrind or block damage.

Tech tips

Use standard size only if journals mic within spec; confirm clearance with Plastigage, clean caps, align tangs, oil the shells, and torque to factory values. Prime the oil system before first start ?️.

Compatibility

• Grand Vitara Xl-7
• Grand Vitara
• Vitara/Sidekick
• Escudo