KX121-3-RD118-14433 Sprocket for Kubota

1. Guaranteed Fit Models: Kubota mini excavators KX121-3, KX121-3SS, KX121-3ST, KX040-4 (specific serial number models). No serial restrictions for KX121-3 series. Verify full model and parameters for KX040-4 to ensure compatibility.

2. Part & Spec Info: Main part no.:RD118-14433; Backup nos.:RD118-14431,RD118-14430,68658-14430 (Kubota dealer nos.);  Core specs:23 teeth,9 bolt holes, inside diameter 8 inches, outside diameter 14 7/8 inches, width at base of tooth 1 1/2 inches. Conforms to Kubota OEM specs.

3. Model Confirmation Tip: Confirm full model (e.g., KX121-3ST vs KX121-3SS) before purchase. Key note: Kubota KX040-4 needs dedicated sprocket for some serial numbers—confirm diameter parameters first. Provide model/serial number for compatibility check if unsure.

1. Installation Guidance: Direct aftermarket replacement. Installation position: Undercarriage drive end, transmits power to track. Advantage: Fastened with original factory bolts for precise fit. Factory recommendation: Hand-tighten to OEM torque; avoid impact tools to prevent damage.

2. Maintenance Recommendation: Regularly inspect for wear or tooth damage. Critical tip: Replace sprockets and rubber tracks simultaneously—they wear together, and simultaneous replacement can maximize the service life of both components.

1. Quality & Craftsmanship: Premium aftermarket replacement manufactured to strict Kubota OEM specs. Adopts one-step electrical induction hardening for teeth, increasing hardness depth while preventing breakage. Hardness depth differs from OEM by only a few millimeters, offering excellent value.

2. Related Supplies: One-stop procurement for Kubota KX121-3 series: Sprocket (RD118-14433), Rubber Track, Bottom Roller, Top Roller, Tension Idler. Combo packages of sprocket and rubber track available for cost savings—consult customer service for details.