ACS6000ULS 2-in-1 Mower Chute Blocker for Zero Turn Mowers | Dual Mode Deck Chute Blocker, Advanced Chute System Replace Part Number 088-6003-00, Fits Most Models

What It Is

The ACS6000ULS is a 2-in-1 mower chute blocker designed for zero turn mowers with an Advanced Chute System (ACS). It replaces OEM part 088-6003-00 and lets you switch between side discharge and mulching/plugged operation without tools—useful for mowing near obstacles or in tight spaces.

Fitment & Compatibility

Before buying, measure your mower deck’s chute opening: this blocker fits ACS-equipped decks with a 6.5-inch wide, 3.5-inch tall discharge port. It’s marketed for most zero turn models, but confirmed fit includes select Bad Boy, Hustler, and Big Dog mowers with ACS decks. Check your deck’s model number and verify the chute mounting holes match the blocker’s two-bolt pattern (4.5-inch center-to-center). If your mower lacks an ACS deck or uses a different chute design, this won’t work. For non-ACS decks, look for a universal chute blocker instead.

Key Things to Buy

• Quality: Made from heavy-duty ABS plastic; holds up well to regular use but may crack if overtightened or hit hard. Not as robust as steel OEM blockers.
• Installation difficulty: Easy—slides into the chute and secures with two bolts (included). No drilling or modifications needed on compatible decks. Takes about 5 minutes.
• Common gotchas: The blocker’s latch can be stiff initially; spray with silicone lubricant if it binds. Also, it may not seal perfectly on decks with slight warping or debris buildup—clean the chute area first. Some users report it rattles at high RPM; add a rubber gasket if needed.
• Dual mode: Switches between “mulch” (blocked) and “discharge” (open) positions via a sliding lever. Works as intended, but the lever can be hard to grip with gloves.

Should You Buy It

If you have a zero turn with an ACS deck and want a tool-free, affordable way to switch from bagging/discharge to mulching without buying a separate kit, this is a solid pick. It’s not as durable as OEM steel blockers, but for $116 and easy install, it’s a good value for occasional use. Skip it if your deck isn’t ACS-compatible or you need a heavy-duty solution for commercial mowing.