Track Roller 4I7345 Bottom Roller Replacement for Caterpillar 311 312 Excavator, Heavy Duty Forged Steel Undercarriage Part with Sealed Bearings for Construction Equipment

OE Number:4I7345, 4I-7345Fitment:Replacement for Caterpillar 311, 311B, 311C, 311CU, 311DLRR, 312, 312B, 312BL, 312C, 312CL, 312D2, 312D2GC, 312D2L, 312DL, 312E, 312EL, 313B, 313BCR, 313D, 314C, 314CCR, 314CLCR, 314DCR, 314DLCR, 314ECR, 314ELCR, 323DLN, 323DLNOEM, E110B, E120BPackage Includes:1x Roller

• 【Heavy-Duty Durability】Constructed from high-strength forged steel with precision heat-treated surfaces (HRC48-54), this lower track roller is engineered to withstand the high impact and constant stress of heavy equipment operation. It provides exceptional load-bearing capacity, ensuring long-lasting performance and resistance to wear even in the most abrasive job site conditions.
• 【OEM Specification & Perfect Fit】This bottom roller is a direct replacement for OEM part number 4I7345 and 4I-7345. It is precision-machined to meet or exceed original equipment manufacturer standards, guaranteeing a perfect fit and smooth rolling motion. This restores proper track alignment and reduces vibration on your machine.
• 【Extended Service Life】Features a sealed and lubricated design with high-quality O-ring seals that lock in grease and block out contaminants like mud, dirt, and debris. This advanced sealing system reduces internal friction, minimizes maintenance requirements, and dramatically extends the lifespan of the carrier roller and the entire undercarriage system.
• 【Versatile Equipment Compatibility】Specifically designed to fit a wide range of popular Cat excavator models, including the 311, 311C, 311CU, 311DLRR, 312, 312C, 312D, 313B, 314C, and E120B. It is the ideal solution for maintaining track performance on your compact or mid-size excavator used in construction, landscaping, and utility projects.
• 【Easy Installation & Reliable Performance】This track roller GP (group) arrives ready to install, helping to minimize costly machine downtime. By ensuring smooth track operation and proper weight distribution, it enhances the stability and overall efficiency of your machinery, allowing you to tackle demanding working environments with confidence.