Lawn Mower Deck Blade 38" (2 Pack), Replacement Cutting Blades Compatible With Simplicity 1704101 & 1704856, Oregon Blade Equivalents, Fits Multiple 38" Cut Deck Models

What It Is

This is a 2-pack of 38-inch replacement cutting blades designed for Simplicity lawn tractors with 38" cut decks, matching OEM part numbers 1704101 and 1704856. They’re medium-lift blades suited for standard residential mowing on flat to moderately uneven terrain.

Fitment & Compatibility

• Deck size: Only for 38-inch cut decks. Measure your deck width from blade tip to blade tip—anything other than 38" will not fit.
• Model/brand: Fits Simplicity models that use OEM blades 1704101 or 1704856. Also compatible with Oregon equivalents (e.g., 91-653). Not for EGO electric mowers—this is a tractor/large riding mower blade despite the brand name in the listing.
• Check before buying: Verify your deck’s center hole diameter (typically 1" or 7/16") and blade offset (flat vs. dished). Measure your old blade’s length, width, and thickness—these are 0.25" thick, 2.5" wide. Use your mower’s serial number to confirm fit on the manufacturer’s site.
• OEM vs aftermarket: These are aftermarket replacements, not genuine Simplicity parts. They match OEM specs but may vary slightly in steel hardness or balance.

Key Things to Know

• Quality: Made from hardened carbon steel with a coated finish to resist rust. Sharp out of the box—handle with gloves.
• Installation: Moderate difficulty. You’ll need a socket wrench and torque wrench. Tighten bolts to 70–90 ft-lbs. Use thread locker if recommended by your mower manual.
• Gotcha: The 2-pack means you’ll have two identical blades—some 38" decks use three blades. Check your deck’s blade count before buying.
• Gotcha: If your deck has a different spindle offset (e.g., 1/2" vs. 3/4"), these blades may not sit flat. Measure your existing blade’s center hole depth and offset angle.

Should You Buy It

Buy these if you have a Simplicity 38" cut deck and need a reliable, sharp aftermarket blade set at a fair price. They’re a solid choice for standard residential mowing, but skip if your deck uses three blades or requires an exact OEM match for warranty or safety reasons.