CAT302.5C-266-8793 Bottom Roller for Caterpillar

1. Guaranteed Fit Models: Core models: Caterpillar 302.5, 302.5C, 303.5 mini excavators; Mitsubishi MM35 mini excavator. Serial Number Requirement: Fits serial numbers starting from 4AZ1 and above. Verified fitment, no modifications needed.

2. Part & Spec Info: Main part no.:266-8793; Backup part no.:146-6064; Core features: Direct OEM-spec replacement, designed for track guidance and tension maintenance. Full undercarriage parts for compatible models available.

3. Model Confirmation Tip: Confirm exact equipment model before purchase. For Caterpillar models, verify serial number is 4AZ1 or above to ensure fitment. Mitsubishi MM35 has no additional serial restrictions. Mismatched parts may cause installation issues.

1. Installation Guidance: Direct aftermarket replacement for specified models. Quantity equipped: One roller required per side for Caterpillar models. Installation position: Center-bottom of the undercarriage, directly bearing the weight of the bottom track. Critical for track system integrity.

2. Maintenance Recommendation: Regularly inspect the bottom roller for wear or damage. It prevents sagging into the track frame during operation, so timely replacement reduces abnormal track wear. Check idler, sprocket and carrier roller together for overall undercarriage maintenance.

1. Quality & Craftsmanship: Professional aftermarket replacement made of high-quality steel. Strictly designed per Caterpillar OEM specs, ensuring precise fit and reliable durability. Effectively maintains track tension and stability in mini excavator working scenarios.

2. Related Supplies: One-stop procurement for Caterpillar 302.5C undercarriage parts: Sprocket (140-4022), Carrier Roller (146-6064), Idler (234-6204), Bottom Roller (266-8793), Rubber Track (300x52.5x78 specification). Fully meets complete undercarriage repair needs.