8TEN LawnRAZOR Blade Set for Cub Cadet MTD Troy Bilt 38 inch Deck 742-0610 742-0610A 942-0610 942-0610A (Mulching)

What It Is

This is a set of three mulching blades designed to fit 38-inch cutting decks on select Cub Cadet, MTD, and Troy-Bilt lawn tractors. They replace OEM part numbers 742-0610, 742-0610A, 942-0610, and 942-0610A, and are intended for fine chopping and recirculating grass clippings rather than side-discharging or bagging.

Fitment & Compatibility

Before buying, confirm your mower deck measures exactly 38 inches from outer blade tip to outer blade tip (not the deck housing). These blades are direct replacements for the OEM numbers listed above, but also fit many MTD-built tractors with the same spindle spacing and center hole size. Measure your existing blades: length should be 18.5 inches from tip to tip, with a 1-inch center hole and a 0.5-inch offset. Check your mower’s model number (often under the seat or on the frame) against the 8TEN compatibility list—common fits include Cub Cadet LT1042, LT1045, and Troy-Bilt Super Bronco 42 (with 38-inch deck option). Avoid assuming all 38-inch decks use the same blade; spindle and mounting differences exist between brands.

Key Things to Know

• Mulching performance: The curved, high-lift design actively recirculates clippings for fine mulching. If you frequently bag or side-discharge, these will clog or leave clumps.
• Installation: Requires basic tools (socket wrench, torque wrench). No special adapters needed. Torque blade bolts to 70-80 ft-lbs. Check blade balance after installation—use a blade balancer to prevent vibration.
• Durability: Made of heat-treated steel with a coated edge. Some users report faster dulling than OEM blades on rocky or sandy soil. Sharpen or replace every 20-25 hours of use.
• Common gotcha: These blades are slightly thicker than some OEM versions. If your spindles have tight clearance, they may rub against the deck housing. Test spin by hand before tightening fully.

Should You Buy It

Buy this set if you own a Cub Cadet, MTD, or Troy-Bilt with a 38-inch deck, primarily mulch, and want a budget-friendly alternative to OEM blades ($27.95 vs. OEM’s $40+). It’s a solid value for average homeowners who mow regularly and don’t need heavy-duty commercial life. Avoid it if you bag often, have a non-MTD deck, or want premium long-life steel.