Serpentine Fan Belt for John Deere 8120-8520 Series Tractors with Air Brakes SKU: QT58154

When your cooling system fails on a high-horsepower tractor like the 8120 or 8520, overheating can shut down critical harvest or planting operations in minutes. This 8-rib serpentine belt restores reliable power to your cooling fan and accessories, preventing the costly downtime that always strikes at the worst possible moment.

Why This Belt Matters

• Precision-engineered 8-rib design handles the power demands of 200+ horsepower engines
• Exact 81.38-inch length specifically sized for air brake equipped models up to specified serial numbers
• Heat and oil resistant construction withstands the harsh conditions of heavy field work
• Reinforced internal cords maintain proper tension through extended operation cycles

When replacing your serpentine belt, this is the perfect time to inspect all pulleys and tensioner components - worn accessories can quickly destroy a new belt. S&H Parts has been helping farmers keep their equipment running since 1969.