Zero Turn Mower Chute Blocker Fits Advanced Chute System ACS6000ULS Part Number 088600300 John Deere Exmark Gravely Toro Kubota Includes Grass Flap with Open Close Control Rustproof Steel

What It Is

This chute blocker is a metal guard that mounts to your zero turn mower’s Advanced Chute System (ACS6000ULS) to redirect clippings and debris away from the discharge chute. It includes a grass flap with an open/close control, letting you switch between side-discharge and mulching or bagging without removing the blocker. Designed for commercial and homeowner use on 60-inch and 72-inch zero turn decks.

Fitment & Compatibility

Before buying, verify your mower uses the Advanced Chute System (ACS), specifically model ACS6000ULS. This part (Toro #088600300) is OEM, not a universal aftermarket piece. It fits Toro, John Deere, Exmark, Gravely, and Kubota zero turns with ACS6000ULS, but not all zero turns—check your deck’s chute system. Measure your deck’s discharge opening width (typically 6–8 inches) and confirm the ACS6000ULS mounting holes align. If your mower has a different chute system (e.g., standard fixed chute), this won’t work. Look up your mower’s serial number or deck model to confirm ACS compatibility.

Key Things to Know

• Quality: Rustproof steel construction is durable, but the grass flap and open/close control are plastic—check for cracks after heavy use.
• Installation: Moderate difficulty; you’ll need a socket wrench and likely 30–60 minutes. Bolts and instructions are included, but some users report needing to adjust the flap tension for smooth operation.
• Common gotcha: The open/close control can jam if debris builds up—clean the pivot points regularly. Also, the blocker may slightly reduce side-discharge efficiency on thick, wet grass.
• Rating note: 3.7 stars from 10 reviews suggests mixed feedback—some praise fitment, others note the flap wears quickly.

Should You Buy It

Buy this if you own a zero turn with the ACS6000ULS system and want a dedicated, OEM chute blocker that lets you switch between discharge modes without removing the guard. It’s right for operators who frequently mulch or bag but need the option to side-discharge. Skip it if your mower lacks ACS6000ULS or you’re on a tight budget—aftermarket universal blockers may fit for less, but won’t have the integrated flap control.