142-5556 – Toro Caster Wheel and Tire Assembly with Axle (Genuine Toro OEM Part) The Toro 142-5556 Caster Wheel and Tire Assembly with Axle is a genuine OEM replacement designed to provide smooth steering, stable support, and reliable maneuverability on compatible Toro sprayers. This complete assembly includes the wheel, tire, and axle, allowing for fast, direct replacement with no additional components required. Built to Toro original equipment specifications, this caster assembly is engineered to withstand continuous use, uneven terrain, and commercial operating conditions. Using genuine Toro parts ensures proper fitment, correct ride height, and long-term durability. Product Details Manufacturer Part Number: 142-5556 Brand: Toro Part Type: Caster Wheel and Tire Assembly with Axle Includes: Wheel, tire, and axle System: Front caster / steering support OEM Status: Genuine Toro OEM replacement Function Provides front caster support for smooth steering Maintains proper balance and ride height Allows stable pivoting during turns and maneuvering Supports consistent handling on spray equipment Compatible With The Toro 142-5556 Caster Wheel and Tire Assembly is used on select Toro SprayMaster® and Z-Spray® equipment, including but not limited to: SprayMaster® Series 36", 46", and 52" SprayMaster & SprayMaster Max models Z-Spray® Series ZSX4640 ZSX5260 (Compatibility varies by model number and serial range. Always confirm using your equipment’s model and serial number before ordering.) How It’s Used This assembly installs as a complete caster unit in the front wheel position. The included axle simplifies installation and ensures proper alignment and rotation once mounted. After installation, verify free caster movement and confirm all fasteners are secured to Toro specifications. Suggested Maintenance Inspect caster wheels for wear, flat spots, or damage Check axle and mounting hardware for tightness Keep caster pivots clean to prevent binding Replace worn assemblies promptly to maintain control Use genuine Toro parts to preserve OEM performance