KX121-3-RD547-22900 Top Roller for Kubota

1. Guaranteed Fit Models: Kubota: KX040-4 (serial ≤25914), KX057-4, KX121-3, KX161-3, KX161-3SS, RX303, U30-3, U45-3, U48-4, U50-3, U55-4. Airman: AX40, AX45, AX50U, AX50U-2, AX50U-3. JCB: 8040, 8045, 805.2, 8060. Komatsu: PC35R-8, PC40R-8, PC45-1, PC45R-8, PCMR-2. Hitachi: ZX30U-2, EX40, EX40U, EX45, EX45-2, EX50, EX50U, EX50UR, EX55UR, ZX40U, ZX50U, ZX50. Verified fitment, no modifications needed.

2. Part & Spec Info: Main part no.:RD547-22900; Alternate nos.:RD411-22900, RD461-21900;  Core features: Universal carrier roller, fully assembled. Suitable for multiple brands' mini excavators. Full undercarriage parts for compatible models available.

3. Model Confirmation Tip: For Kubota KX040-4, confirm serial ≤25914. For other brands/models, no serial restrictions but verify exact model. Kubota KX121-3/KX161-3 have no alternative part nos.—this product is guaranteed to fit precisely.

1. Installation Guidance: Direct aftermarket replacement for multi-brand models. Quantity equipped: 2 per machine (one left, one right). Installation position: Near the center of the upper undercarriage. Advantage: Easy to replace, no additional hardware required, suitable for DIY installation to save labor costs.

2. Maintenance Recommendation: Regularly inspect for seized rollers—unnoticed seized rollers cause severe track wear. Replace promptly to avoid excessive maintenance costs. Check idler, sprocket and bottom roller together for overall undercarriage maintenance.

1. Quality & Craftsmanship: Professional aftermarket replacement made of high-quality steel. Precisely matches OEM specs of Kubota, Airman, JCB etc. Ensures precise installation, reliable durability and strong versatility.

2. Related Supplies: One-stop procurement for Kubota KX121-3/U45 etc. & other compatible brands' undercarriage parts: Top Roller (RD547-22900), Bottom Roller, Idler, Sprocket. Fully meets the maintenance needs of applicable multi-brand mini excavators.