PEY111SG0 Mazda METAL SET,MAIN BRG, Price: 64.87$, Weight: 0.539kg

Engine Main Bearing Metal Set (Crankshaft Support Bearings) ⚙️

This internal engine bearing set is needed to hold the crankshaft perfectly centered inside the engine block. It creates a smooth, low-friction surface so the crank can spin at high RPM while staying stable under heavy load. Without healthy main bearings, the engine cannot keep proper oil clearance or maintain correct crank alignment.

How it works ️

Main bearings sit between the crankshaft journals and the engine block/caps. Pressurized engine oil forms a thin lubricating film that prevents metal-to-metal contact. The bearing material is designed to absorb tiny debris and handle shock loads, protecting the crankshaft and block from scoring.

Signs of failure / what happens if broken ❗

If worn or damaged, oil pressure can drop, the crankshaft may wobble, and you may hear deep knocking at idle or under acceleration. Continued driving can cause seized crank journals, spun bearings, crankshaft damage, and complete engine failure—often requiring a full rebuild or replacement.

Compatible Models ✅

• 3
• Cx-5
• Cx-3
• 6
• 6 Wagon
• Mx-5
• Atenza
• 6 Atenza
• Cx-4