BlueStars 942-05052A Mower Blades for 50 Inch Deck Lawn Mower - Fit for Cub Cadet 50 Inch XT1 LT50 GT50 RZT SX50 EFI FAB Troy Bilt Mustang XP Craftsman Z550 742-05052A - Medium Lift Mulching 3 Packs
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🛒 See Price on AmazonWhat It Is
These are three medium-lift mulching blades designed for 50-inch cutting decks, intended to replace OEM part 942-05052A (and cross-reference 742-05052A). They’re for Cub Cadet XT1, LT50, GT50, RZT, SX50, EFI, FAB models, plus Troy-Bilt Mustang XP and Craftsman Z550 zero-turn mowers.
Fitment & Compatibility
Before buying, confirm your deck measures exactly 50 inches from spindle to spindle (outer blade tip to tip). These blades fit only 50-inch decks—not 46, 48, or 54. Check your mower’s model number (e.g., XT1 LT50) and OEM blade part number (942-05052A or 742-05052A). BlueStars blades are aftermarket; they may not match OEM blade thickness or hole geometry exactly, so measure your current blade length (should be ~20.5 inches), center hole diameter (usually 7/8-inch), and offset. Verify your deck’s spindle pattern—some 50-inch decks use three blades, others use two. This pack has three blades, so if your deck uses two, you’ll have a spare.
Key Things to Know
- Quality: Medium-lift design balances mulching and bagging. Not for heavy-duty cutting or thick, wet grass—expect more clumping in damp conditions.
- Installation: Straightforward if you have a socket set and blade removal tool. Torque to 70–90 ft-lbs. Use thread locker if reinstalling old bolts.
- Common gotcha: These blades may be slightly thinner or lighter than OEM—check for vibration after install. If you feel excessive shake, re-check balance or return.
- No washer/shim included: You’ll need to reuse your original mounting hardware.
Should You Buy It
If you own a Cub Cadet, Troy-Bilt, or Craftsman 50-inch deck (and verified your model matches), and you want affordable replacement mulching blades without paying OEM prices, these are a solid value. Skip them if you need heavy-duty bagging or high-lift performance—go with OEM or a premium brand instead.
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