4 Inch - Caster Assemblies

Find replacement caster assemblies for pallet jacks, forklifts, and material handling equipment — fully assembled swivel and rigid caster units ready for direct installation. Our Caster Assemblies collection covers complete caster units including the wheel, housing, swivel bearing, and mounting hardware for the most common equipment applications.

Compatible equipment brands include Crown, Raymond, Yale, Jungheinrich, BT Prime Mover, and other major OEM and aftermarket manufacturers. Caster assemblies are matched by wheel diameter, housing dimensions, mounting plate configuration, and load rating for verified fitment.

Caster assembly types available:

• Swivel Caster Assemblies — 360° swivel units for maneuverability on equipment bases and outrigger frames
• Rigid Caster Assemblies — fixed-direction units for straight-line tracking applications
• Brake Caster Assemblies — swivel units with integrated locking brake
• Polyurethane Wheel Assemblies — smooth-floor casters with PU wheels for floor protection
• Nylon Wheel Assemblies — high-load casters for rough surface and outdoor applications

How to select the right caster assembly: Match by wheel diameter, overall assembly height, mounting plate dimensions (length × width × bolt pattern), and load capacity. For equipment-specific casters, use the brand and model filters above. Buying a complete assembly versus individual components reduces installation time and ensures all parts are dimensionally matched.

With 230+ caster assembly SKUs in stock, most orders ship same or next business day from our US warehouse.