King Kutter Rotary Cutter Blades for 6' Code 501130 Set of 2 fits All L72 Models

What It Is

This is a set of two replacement blades for King Kutter 6-foot rotary cutters, designed for heavy-duty brush and grass cutting. They’re intended for tractors and large-area mowing, not residential lawn tractors.

Fitment & Compatibility

Before buying, verify your cutter is a King Kutter L72 model (e.g., L72, L72R, L72S). The blades are 3/8" thick, 4" wide, and 30" long, with a 1" center hole and 7" bolt spacing. Check your existing blade length and hole pattern—these only fit the 6-foot deck, not 5-foot or 7-foot models. They are aftermarket replacements for OEM part 501130, not universal for all rotary cutters. Measure your current blade’s thickness and mounting hole distance to confirm.

Key Things to Know

• Heavy-duty build: 3/8" thick steel handles thick brush and saplings up to 2" diameter, but expect faster wear in rocky or sandy soil.
• Installation: Straightforward—remove old blades, clean spindle, torque bolts to 150-200 ft-lbs. Use new lock washers or nuts (not included).
• Common gotcha: These blades are not sharpened from the factory; they rely on edge impact. Do not sharpen them—it weakens the steel and reduces durability.
• Balance: Check blade balance after mounting; unbalanced blades cause vibration and spindle wear.

Should You Buy It

Buy these if you own a King Kutter 6-foot L72 rotary cutter and need a direct, heavy-duty replacement for brush or pasture mowing. They’re a solid value for the price, but skip them if you have a different brand or deck size—fitment is narrow.