CUB CADET 19B70066100 Xtreme Mulch Kit 60" Star Deck Ultima ZTX6-60 Zero Turns

What It Is

The Cub Cadet 19B70066100 Xtreme Mulch Kit is a factory-designed accessory that converts your 60" Star Deck on the Ultima ZTX6-60 zero-turn mower from side-discharge or bagging to high-performance mulching. It uses a set of baffles and a specialized mulch plug to recirculate clippings for finer cutting and nutrient recycling.

Fitment & Compatibility

Before buying, confirm your mower has a 60-inch Star Deck (not the standard 60" fabricated deck). This kit is specifically for the Cub Cadet Ultima ZTX6-60 and models with the same Star Deck design. Do not assume it fits other 60" decks—measure the deck shell shape and check for the curved baffle mounting holes. The kit is OEM, so no aftermarket modifications are needed, but verify your serial number matches Cub Cadet’s compatibility list. The kit includes a mulch plug, two baffle plates, and hardware; no additional parts required.

Key Things to Know

• Installation difficulty: Moderate. You’ll need to remove the side-discharge chute and bagger mounts, then bolt on the baffles. Expect 30-45 minutes with basic hand tools (socket set, screwdriver).
• Cut quality: Excellent for fine clippings on dry grass. Wet or thick grass may require slower ground speed to avoid clumping.
• Common gotcha: The mulch plug must be seated firmly in the discharge opening—if it’s loose, clippings will blow out. Torque bolts to spec (check manual) to avoid rattling loose.
• Noise & debris: Mulching can throw small debris; always wear eye protection. The kit doesn’t affect blade engagement or deck lift.

Should You Buy It

This kit is ideal if you mow frequently (every 3-5 days) on manicured lawns and want to eliminate bagging or raking. It’s a poor choice for rough, overgrown, or wet conditions. At $245, it’s a premium upgrade for Cub Cadet owners who prioritize clean, mulch-ready turf.