Top link reducer bushings from Koch Industries are yellow zinc-plated and available for category zero through three tractors. Allows for lower category implements to be used on tractors that are one category higher.
| Color | : | Yellow |
| Finish | : | Zinc |
| Inside Diameter | : | 5/8 in |
| Length | : | 1-5/8 in |
| Outside Diameter | : | 3/4 in |