10 Pack Sickle Bar A+ Heavy Super 7 Top Serrated Teeth Blade Sections S20-3407

What It Is

This is a 10-pack of A+ Heavy Super 7 top-serrated sickle bar blade sections (model S20-3407), designed for heavy-duty cutting of thick grass, brush, and forage on sickle-bar mowers used in tractors, haybines, and swathers.

Fitment & Compatibility

• Measurements: Each blade section has a 3-inch center-to-center hole spacing, a 2-3/8 inch cutting width, and a 3/8 inch bolt hole diameter. Verify these match your existing sections.
• OEM vs Aftermarket: These are aftermarket replacements, compatible with many OEM sections (e.g., John Deere, New Holland, Case IH) using the S20-3407 pattern. Not a universal fit—check your mower’s section part number.
• Deck/Model: Not for rotary or zero-turn mower decks. For sickle-bar mowers only (e.g., 7-ft, 9-ft, or 12-ft bars). Confirm your mower uses top-serrated sections (not smooth or under-serrated).
• What to check: Measure hole spacing, bolt size, and section thickness (these are “heavy” grade). Count the number of sections needed per bar—10 may be a partial set.

Key Things to Know

• Quality: “A+ Heavy Super 7” indicates a thicker, more durable steel than standard sections—good for tough conditions but may require slightly more cutting force.
• Installation difficulty: Moderate. You’ll need a socket or wrench to remove and replace bolts (usually 3/8-inch). No special tools, but keep bolts and wear plates in good condition.
• Gotcha: Serrated teeth are top-only—ensure your mower’s ledger plates are set correctly for top-serrated (not bottom) sections. Wrong orientation causes poor cutting and rapid wear.
• Maintenance: Inspect sections for cracks or dullness after heavy use. Serrated edges can’t be sharpened easily—replace when worn.

Should You Buy It

Buy this if you own a sickle-bar mower used for thick, coarse crops or brush and need durable, heavy-duty replacement sections. It’s a solid value for the price, but verify your mower’s section pattern (S20-3407) and hole spacing first—otherwise, it won’t fit.