703371 Mower Blade 21" Compatible with Briggs and Stratton Walk-Behind Mowers with 21 inch Cutting Deck Replacement Mulching Blades fit for Snapper Mower 1696607 2691561 7800923 1696627

What It Is

This is a 21-inch mulching blade designed to replace the blade on Briggs & Stratton walk-behind mowers with a 21-inch cutting deck. It’s also compatible with several Snapper models (1696607, 2691561, 7800923, 1696627) and is intended for mulching grass clippings into fine particles that decompose quickly.

Fitment & Compatibility

• Deck size must be exactly 21 inches – measure your current blade length from tip to tip. This blade is 21 inches long, center hole diameter is typically 1 inch, and the drive hole pattern is a 5-point star (common on Briggs & Stratton engines).
• Check your mower’s model number – confirmed fits for Snapper walk-behind mowers with model numbers 1696607, 2691561, 7800923, 1696627. Also fits many Briggs & Stratton walk-behinds with 21-inch decks (e.g., Murray, Yard Machines, Craftsman with compatible spindle).
• OEM vs aftermarket – this is an aftermarket replacement, not OEM Snapper. Quality is generally good, but verify the center hole and drive holes match your spindle exactly. If your mower uses a different drive pattern (e.g., oval or square), this blade won’t fit.
• Measure blade thickness – typical is 0.125–0.150 inches. This blade should be similar; if yours is thicker, check that the blade bolt is long enough.

Key Things to Know

• Mulching performance – the curved wing design chops clippings finer than standard blades. Works best with a mulching plug installed and dry grass. Wet grass will clump.
• Installation – easy swap with a socket wrench. Use a blade removal tool or wedge to lock the blade. Torque the bolt to 30–40 ft-lbs (not hand-tight). Always disconnect the spark plug first.
• Common gotcha – some users report the blade is slightly lighter than OEM. Balance it before installing (use a blade balancer). An unbalanced blade causes vibration and poor cut.
• Durability – heat-treated steel holds an edge decently for residential use. Expect to sharpen or replace after 10–15 hours of mowing if you hit rocks or roots.

Should You Buy It

If you need a budget-friendly 21-inch mulching blade for a Briggs & Stratton walk-behind or compatible Snapper mower, this is a solid choice. It’s not for high-end commercial use, but for residential lawns it delivers fine mulching at a good price. Just double-check your blade’s center hole and drive pattern before ordering.