(2) Super Turf Tire Assemblies 20x10.50-8 Fits Toro GrandStand 48" 52" 140-1888

What It Is

This is a set of two (2) 20x10.50-8 Super Turf tires mounted on wheels, designed specifically for Toro GrandStand mowers with 48" or 52" decks. These are OEM replacement assemblies (part number 140-1888) for the front caster wheels, providing smooth turf traction and reduced ground damage compared to standard hard-rubber tires.

Fitment & Compatibility

Check before buying:

• Machine model: Only fits Toro GrandStand models (48" and 52" deck sizes). Not for other Toro series or brands.
• Tire size: 20x10.50-8. Measure your current tire diameter (should be ~20") and rim width (8"). Verify the hub pilot hole diameter matches your spindle—typically 5/8" on GrandStand units.
• Bolt pattern: Confirm your spindle uses a single 5/8" bolt and cotter pin (common for GrandStand front casters). Some aftermarket spindles may differ.
• OEM vs aftermarket: This is the genuine Toro assembly (140-1888). Aftermarket versions are cheaper but may have different tread patterns or wheel offsets that affect steering geometry.
• Deck clearance: Ensure the tire diameter doesn’t interfere with the deck or anti-scalp rollers when fully turned. GrandStand 52" decks may have tighter clearance.

Key Things to Know

• Quality: OEM Toro tires use a soft, turf-friendly rubber compound. They wear faster on concrete but provide excellent traction on grass and reduce scuffing.
• Installation difficulty: Moderate. You’ll need a jack or blocks to lift the mower, a 5/8" wrench, and a cotter pin tool. No tire mounting required—just swap the whole assembly.
• Common gotcha: The wheel bearings are pre-greased and sealed. Do not add grease—overpacking can blow seals. Also, the tire pressure is low (12-15 PSI max); overinflating can cause ride harshness and turf damage.
• Durability: Rated for 0.8-1.5 years of commercial use depending on terrain. If you mow mostly pavement, expect faster wear.

Should You Buy It

Buy this if you own a Toro GrandStand 48" or 52" and need a direct OEM replacement for worn front tires that’s ready to bolt on with no modifications. It’s ideal for commercial operators who want consistent turf protection and easy installation. If you’re on a tight budget, aftermarket options exist for ~$60 less, but expect shorter lifespan and possible fitment tweaks.