CAT303C-266-8794 Top Roller for Caterpillar
Application & Compatibility
1. Guaranteed Fit Models: Caterpillar 303 CCR, 303ECR, 303.5C, 303.5 CCR, 303.5D, 303.5E, 303.5ECR, 303.5E2CR, 304E, 304ECR, 304DCR, 303.5CCR, 303.5DCR, 304E2CR, 303CCR mini excavators. Verified fitment, no serial number restrictions and no modifications needed.
2. Part & Spec Info: Main part no.:266-8794; Alternate part no.:266-8794 (Caterpillar dealer part no.); The part is fully compatible with original equipment. Full undercarriage parts for compatible models available for procurement.
3. Model Confirmation Tip: This top roller is compatible with multiple Caterpillar 303 series and 304 series mini excavators. No serial number verification required. Simply confirm the exact machine model is within the listed applicable models to ensure fitment.
Installation & Maintenance Tips
1. Installation Guidance: Direct aftermarket replacement. Quantity equipped: 1 carrier roller per side of the machine. Installation position: Center of the top of the undercarriage system. Core function: Supports the track and prevents it from sagging into the track frame.
2. Maintenance Recommendation: Regularly inspect the top roller for wear or damage. For overall undercarriage maintenance, check idler, sprocket and bottom roller together. Replace worn parts uniformly to ensure the stable operation of the excavator system.
Quality & Related Supplies
1. Quality & Craftsmanship: Professional aftermarket replacement made of high-quality steel. The structure is designed to match OEM specs precisely, ensuring stable operation and reliable durability in various mini excavator working scenarios.
2. Related Supplies: One-stop procurement for Caterpillar 303C/303.5C/304D series undercarriage parts: Top Roller (266-8794), Bottom Roller, Idler, Sprocket and other core components. Fully meets the maintenance needs of the applicable mini excavators.
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