942-0611A 942-0612A Mulching Mower Blades for Cub Cadet 46" Deck LT1045 LT1046 for Troy Bilt GTX2446 LTX2146 46 Inch Deck Riding Mower Lawn Tractor Replace 742-0611A 742-0612A 3-IN-1 Blades 3 Pack

What It Is

This 3-pack of mulching blades replaces OEM parts 742-0611A and 742-0612A for 46-inch decks on Cub Cadet (LT1045, LT1046) and Troy-Bilt (GTX2446, LTX2146) riding mowers. They’re designed for mulching grass clippings into fine particles that decompose quickly, reducing bagging or raking.

Fitment & Compatibility

Before buying, confirm your mower has a 46-inch cutting deck—these blades will not fit 42-inch or 50-inch decks. Verify your model is listed: Cub Cadet LT1045, LT1046; Troy-Bilt GTX2446, LTX2146. These are aftermarket replacements for OEM part numbers 742-0611A and 742-0612A. Original blades have a center hole diameter of 1 inch, overall length of 20.5 inches, and a 5-point star drive. Measure your existing blade’s length and hole shape—if it’s a 6-point star or different length, these won’t fit.

Key Things to Know

• Installation difficulty: Easy if you have a socket wrench and blade removal tool. Use a torque wrench to tighten to 30–50 ft-lbs; overtightening can strip the star drive.
• Mulching performance: These have a curved, high-lift design that recirculates clippings. Works best when grass is dry and cut frequently (no more than 1/3 of blade height).
• Common gotcha: The 3-pack includes three identical blades, but some 46-inch decks use a staggered set (one left-hand, two right-hand). Check your deck’s blade orientation before installing—these are universal, so rotate the blade to match the lift direction.
• Durability: Heat-treated steel holds an edge longer than cheap stamped blades, but avoid hitting rocks or roots—they can bend or chip.

Should You Buy It

If you own a compatible Cub Cadet or Troy-Bilt 46-inch deck mower and want a budget-friendly mulching upgrade that matches OEM specs, this 3-pack is a solid choice. Avoid if your deck uses a different blade length or star pattern, or if you prefer side-discharge or bagging blades.