Main Drive Belt, 5 Groove

Main Drive Belt for John Deere Forage Harvesters

The main drive belt is essential for powering key systems on your John Deere forage harvester. This belt transfers engine power to the cutterhead, feedrolls, kernel processor, and blower. A reliable belt is critical to cutting and moving forage efficiently through the machine.

This belt runs at 1100 RPM cutterhead speed and measures 372 inches in length. It fits multiple John Deere self-propelled forage harvesters equipped with ASN 623000.

Compatible Models:

• JD 8100, 8200, 8300 ASN 623000, 8400 ASN 623000, 8500 ASN 623000
• JD 8600 (Narrow) ASN 623000
• JD 9500, 9600 ASN 623000, 9700 ASN 623000, 9800 ASN 623000, 9900 ASN 623000

When to Replace:
Replace the belt if you notice cracks, frayed edges, or glazing on the surface. Glazing can indicate excessive heat and friction. Belts may also stretch over time, which causes a loss of tension and power slippage.

For optimal forage harvester performance, don’t overlook the importance of a high-quality, properly tensioned main drive belt.