(BL) 1704856 Replaces (2) Simplicity Blades 38" Cut Deck 1704101 Oregon Blades + fits Many Other Models

What It Is

This is a set of two replacement mower blades (Oregon part 1704856) designed for 38-inch cutting decks, primarily used on Simplicity and other compatible lawn tractors. They are aftermarket equivalents to OEM Simplicity blades (part 1704101), built for mulching, bagging, or side-discharge use.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: These blades are for 38-inch decks only. Measure your deck width if unsure.
• Model/brand: Directly replaces Simplicity 1704101 blades. Also fits many other brands (e.g., some Snapper, Murray, or Craftsman models) with a 38-inch deck and the same blade pattern. Check your owner’s manual or existing blade part number.
• Blade measurements: Each blade is 18.5 inches long, with a 1-inch center hole and a 0.375-inch (3/8”) offset. Measure your old blade’s length, hole diameter, and offset to confirm match. Oregon’s online fitment guide or your mower’s model number can cross-check compatibility.

Key Things to Know

• Quality: Oregon is a reputable aftermarket brand; these blades are heat-treated and balanced. They may not be identical to OEM but perform well for general cutting.
• Installation: Straightforward—requires a socket wrench and possibly a blade removal tool. Torque bolts to 40-50 ft-lbs. Note the blade orientation (cutting edge faces upward when installed).
• Common gotcha: Some decks require specific blade registration (e.g., aligning with deck spindle). If your deck has a unique spindle pattern, double-check that these blades’ offset matches.
• Edge life: Expect similar durability to OEM; sharpen or replace annually depending on use and debris.

Should You Buy It

If you need a reliable, cost-effective replacement for Simplicity 1704101 blades on a 38-inch deck and your model is listed as compatible, this is a solid choice. It’s ideal for homeowners who want OEM-like performance without the premium price. Avoid if you have a different deck size or need blades for a specialty cut (e.g., low-lift for sandy soil).