942-04308 High Lift Mower Blades 6 Star Hole 42 inch Mulching Mower Blades, for Cub Cadet Troy Bilt Craftsman 42" Deck Riding Mower,Replace 942-04308A, 942-04312, 742-04312,742-04308A(2Pack)

What It Is

These are high-lift mulching blades designed for 42-inch deck riding mowers from Cub Cadet, Troy-Bilt, and Craftsman. The raised wing profile increases airflow to lift grass for a cleaner cut and better mulching, making them ideal for frequent mowing in spring and fall.

Fitment & Compatibility

Check these before buying:

• Deck size: Must be exactly 42 inches. Measure your mowing deck from blade tip to blade tip.
• Blade pattern: 6-star center hole. Count the points on your current blade’s mounting hole—this only fits 6-star hubs.
• OEM replacements: Directly replaces Cub Cadet parts 942-04308A, 942-04312, and 742-04312, 742-04308A. Also fits many Troy-Bilt and Craftsman models using those numbers.
• Measure your blade: Overall length should be 21 inches (center hole to tip). Center hole diameter is 1 inch. Verify these with your old blade before ordering.
• Model check: Confirm your mower’s model number (stamped under seat or on frame) is listed in the manufacturer’s compatibility chart for these part numbers.

Key Things to Know

• High lift vs. standard: These blades create more suction, which improves bagging and mulching but may bog the engine in tall, wet grass. Use at full throttle.
• Installation difficulty: Easy—requires a socket wrench and torque to 70–90 ft-lbs. No special tools needed. Always disconnect the spark plug first.
• Common gotcha: The 6-star hole is not universal. Many 42-inch decks use a 5-point star or oval hole. Count your star points before buying.
• Durability: Heat-treated steel holds an edge well but will dull faster if you hit rocks or roots. Sharpen or replace after 25-30 hours of use.

Should You Buy It

Yes, if you own a late-model Cub Cadet, Troy-Bilt, or Craftsman with a 42-inch deck and a 6-star blade mount. They’re a solid upgrade for cleaner mulching and better bagging at a fair price. Skip them if your deck uses a 5-star or oval hole, or if you mostly mow wet, thick grass—the high lift may strain your engine.