Mytee Products (2 Pack) Combine Platform Sickle Bar Rock Guard fits MacDon Part # 118344 - Black Powder Coated Forged Steel Sickle Mower Knife Guard with Two Prongs

What It Is

This is a set of two forged steel rock guards (sickle bar knife guards) designed to protect the cutting sections on a combine platform or sickle mower. The two-prong design helps deflect rocks and debris away from the knife sections, reducing blade damage and downtime in heavy residue or rocky fields.

Fitment & Compatibility

• OEM Replacement: Directly replaces MacPart #118344. Cross-check your existing guard number before ordering—this is not a universal fit.
• Machine Types: Compatible with most MacDon combine headers, draper platforms, and pull-type sickle mowers that use the two-prong rock guard design. Also fits many John Deere, Case IH, and New Holland headers that accept the same MacDon-style guard.
• Measurement Check: The guard is forged steel, black powder coated. Measure the bolt hole spacing (center-to-center) and overall length on your current guard. Common spacing is 2.5" or 3", but confirm—these are not interchangeable with all brands.
• Deck/Header Size: Not size-specific; works on any header that uses this guard pattern. Verify your existing guard’s prong count (two prongs) and shape (curved vs. straight) matches.

Key Things to Know

• Installation: Simple bolt-on—remove the old guard, clean the mounting surface, and torque the bolts to spec (typically 35–45 ft-lb). Use anti-seize on threads to prevent galling.
• Quality: Forged steel is stronger than cast iron and resists cracking under impact. The powder coat is durable but will wear off with field use—touch up with spray paint if rust appears.
• Common Gotcha: The two-prong design is narrower than some three-prong or solid guards. If your header uses a different guard pattern (e.g., single-prong or serrated), these won’t fit. Always compare prong spacing and bolt pattern.
• Pair Pack: You get two guards, not one. If you only need one, you’ll have a spare. If you need more than two, order multiple packs.

Should You Buy It

If you own a MacDon or compatible combine header and need a direct, no-fuss replacement for a damaged or worn two-prong rock guard, this is a solid buy. The forged steel construction outlasts cheaper cast options, and the price per guard (~$19.50) is fair for the quality. Skip it if your header uses a different guard pattern or you need a three-prong design.