The New Holland 87800129 is a genuine OEM alternator belt designed for optimal performance and durability in New Holland agricultural equipment. This high-quality belt measures 12.70 mm in width and 1417.8 mm in effective length, ensuring a precise fit and efficient power transmission to the alternator. Manufactured to New Holland's stringent specifications, it provides reliable operation, reduces slippage, and extends the service life of critical engine components. Ideal for maintaining the electrical system's integrity in compatible New Holland tractors and other machinery.