Add to Favorite Sellers. Garland 4602571 Caster – 4In Dia X. This is a genuine OEM replacement part from Garland. Guaranteed Compatibility – OEM parts fit and function exactly like the original components, ensuring a perfect match. Higher Quality and Reliability – OEM parts are built to the same quality standards as the original components, reducing the risk of premature failure. Safety Assurance – Genuine parts give you peace of mind that your equipment remains safe to use.