This aftermarket replacement tensioner gear is specifically designed as a compatible alternative for New Holland agricultural machinery, replacing the OEM part number 840242201. As a high-quality, non-original equipment manufacturer (non-OEM) component, this left-side tensioner gear is engineered to provide reliable and efficient performance within your equipment's tensioning system. Crafted to meet or exceed the functional specifications of the original part, this gear features 12 teeth (Z-12) and a 20mm bore diameter (FI-20MM), ensuring precise fitment and smooth operation. It plays a critical role in maintaining optimal tension in drive systems, which is vital for the consistent and effective functioning of various components in New Holland balers and other compatible agricultural equipment. Choosing this 840242201 compatible tensioner gear offers a cost-effective solution for maintenance and repairs without compromising on durability or performance. Manufactured from robust materials, it is built to withstand the demanding conditions of agricultural environments, ensuring a long service life and contributing to reduced operational downtime. This replacement part is an excellent choice for farmers and operators seeking a dependable and economical alternative for worn or damaged tensioner gears, helping to maintain the productivity and efficiency of their New Holland machinery. Always confirm compatibility with your specific machine model and serial number before installation.