A-1012-09M-AI Lock Nut; 12MM model-ENFORCER 48 53B13AGV050 Replaces Part Number: 1986068

Replaces Part Number: 1986068

These V-belts drive the cooling fan in the engine's cooling system and are specifically sized for 4630 tractors equipped with the cooling kit installed

-Has 5/8-18 UNF end w/ 1/2" NPT pipe bushing

48" deck models 917276700

Fits the Following Tractor Models:

A-1012-09M-AI Lock Nut; 12MM model-ENFORCER 48 53B13AGV050 Replaces Part Number: 1986068One New Aftermarket Replacement Lock Nut 12MM for Agricultural and Construction Equipment This 12MM hex top lock nut (also known as a prevailing torque or top lock nut) is a standard metric fastener used across a wide range of agricultural, construction, and lawn and garden equipment. Lock nuts are designed to resist loosening under vibration and dynamic loads, making them essential hardware for secure assembly and maintenance of mowers, tractors,