742-0616 Mulching Blades for 42" Decks, Mower Blade with Nuts Replaces for MTD/Cub Cadet/Troy Bilt 942-0616A,742-04126, 942-04126-X, Replace for Toro 112-03152, RZT42 LT1040 LT1042, 2 Pack

What It Is

This is a 2-pack of 42-inch deck mulching blades (model 742-0616) designed for MTD, Cub Cadet, Troy-Bilt, and Toro zero-turn and lawn tractors. They replace OEM numbers 942-0616A, 742-04126, 942-04126-X, and Toro 112-03152, intended for fine grass clipping mulching rather than bagging or side-discharge.

Fitment & Compatibility

Critical checks before buying:

• Deck size: Only for 42-inch cutting decks. Measure your deck width—this blade will not fit 46", 50", or 54" decks.
• Blade measurements: Center hole diameter = 1" (25.4mm), overall length = 21.5", thickness = 0.25". Verify these against your current blade.
• Brand/model examples: Fits Cub Cadet RZT42, LT1040, LT1042; Troy-Bilt Mustang 42; Toro TimeCutter 42 (models using 112-03152). Not compatible with all Toro 42" decks—check your OEM part number.
• OEM vs aftermarket: This is an aftermarket replacement. It includes new nuts and washers. If your mower uses a different blade bolt thread (e.g., 5/8" vs 1/2"), you may need separate hardware.
• Verify your model number: Use the OEM part lookup on Cub Cadet/Troy-Bilt/Toro sites to confirm 742-0616 or 942-0616A is listed for your mower.

Key Things to Know

• Mulching performance: These blades have a higher lift and more aggressive curve than standard blades. They chop clippings finer but can bog in tall, wet grass—mow more frequently or at a higher deck setting.
• Installation: Straightforward bolt-on with included hardware. Torque blade bolts to 70-90 ft-lbs. Always lift the deck, block it securely, and disconnect the spark plug before swapping blades.
• Balance: Blades come pre-balanced, but check with a blade balancer after install. An unbalanced blade causes vibration and bearing wear.
• Durability: Heat-treated steel holds an edge well for 1-2 seasons of normal use. Sharpen or replace if nicked or bent—never straighten a bent blade.

Should You Buy It

If you own a 42" deck MTD/Cub Cadet/Troy-Bilt/Toro tractor or ZTR that uses 742-0616 or 942-0616A blades, this is a solid, cost-effective mulching upgrade. It’s ideal for homeowners who want finer clippings and less bagging but don’t need OEM branding. Skip it if you primarily bag or side-discharge, or if your deck uses a different blade length or center hole size.