Caterpillar 4K6558 Lower Pin

The Caterpillar 4K6558 Lower Pin is a genuine OEM replacement part designed for a wide range of heavy-duty earth-moving equipment. Engineered to Caterpillar’s precise specifications, this robust pivot pin ensures reliable performance in motor graders, wheel loaders, compactors, and wheel dozers. Manufactured from high-strength alloy steel and heat-treated for superior wear resistance, the 4K6558 pin maintains critical alignment and smooth operation in hydraulic linkages and undercarriage assemblies.

Key features:

• Premium OEM quality for direct fitment

• Durable alloy steel construction with ISO 9001–certified testing

• Precision-machined to Caterpillar tolerances

• Ideal for high-impact and high-load applications

• Simplifies maintenance with standard dimensions

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