ILONPA 42" Mulching Blades 2-Pack Black — Toothed 3-in-1 Replacement Set

These ILONPA 42" mulching blades (model 942-04308) are a pair of 3-in-1, toothed replacement blades designed to fit many 42-inch lawn tractors and zero-turn mowers for efficient mulching, side-discharge, or bagging.

Whether you need to refresh dull blades or convert worn cutting edges back to mulching performance, these heavy-duty steel blades are sized and drilled to match common 42" decks from brands such as Cub Cadet, Troy-Bilt, Craftsman, White/Columbia and Toro. Each blade is engineered with a toothed profile to improve grass lift and mulching action; two blades are included so you can replace both sides of a typical 42" deck at once.

Will these blades fit my mower model?

These blades are made to fit a long list of 42" tractors and zero-turn models, but center-hole style matters—confirm your spindle center hole before ordering. If your deck uses the 6-point star center hole and the specified dimensions match, these blades will install as direct replacements.

• Compatible model families: Cub Cadet XT1/XT2/XT2-LX, RZT/ZT1 series, Troy-Bilt Bronco/Pony/Mustang series, many Craftsman T-series and Z-series, White/Columbia and Toro LX models.
• Center hole type: 6-point star, center hole diameter ~1" (25.7 mm).
• Blade dimensions: length ~21-1/7" (537 mm), width 2-3/8" (60 mm), thickness 1/7" (3.8 mm).
• If your blade has an S-shaped or 5-star hole, check the alternate MPNs called out to avoid mismatches.

How do these blades improve cutting and mulching?

The toothed edge design increases airflow under the deck and chops clippings finer, helping grass return to the lawn more naturally. They’re rated as 3-in-1 blades, so you can use them for mulching, side discharge, or bagging depending on your deck configuration.

• Toothed cutting edge enhances lift and mulching action for finer clippings.
• Air lift height ~1-1/9" (28 mm) for consistent grass flow across the deck.
• Durable stamped steel construction resists bending and chips under normal use.
• Sold as a two-piece set so both left and right blades are renewed together.

What are the installation and compatibility details I should check?

Before installing, compare the blade length, thickness, hole pattern, and lift height with your existing blades. Use proper safety steps: disconnect spark plug, wear gloves, and tighten mounting hardware to factory torque specifications.

• Measure current blade length and center hole shape to verify match.
• Confirm blade thickness (~3.8 mm) and width fit your spindle adapters and deck clearances.
• Replace both blades on a 42" deck to maintain balance and even cut.
• Keep original mounting bolts or use manufacturer-recommended hardware and torque settings.

Are replacement part numbers and alternate options listed?

Yes—these blades correspond to several OEM numbers, making cross-referencing simpler when searching for fits or alternates. Check the listed MPNs if you see a different center-hole style on your current blade.

• Primary replacement numbers: 942-04308, 942-04308A, 942-04312, 742-04308 and related variants.
• Other cross-reference numbers in listings include 942-0656 and 742-0656.
• If your current blade uses an S-shaped or 5-star hole, specific alternate MPNs are suggested—verify before purchase.

Who is this for: Homeowners and lawn-care professionals who maintain 42" decks and need a balanced, mulching-capable blade set that fits a wide range of tractors and zero-turn mowers. Ideal for users replacing worn or damaged blades who require OEM-style dimensions and a 3-in-1 blade for flexible mowing modes.