King Kutter Box Frame Disc Parts

Replacement parts for King Kutter box frame disc harrows, covering bearings, axle shafts, disc blades, lift arms, spacers, and hardware for keeping angle and box frame disc harrows working through the field.

Fits Models At A Glance

• Box Frame Disc Harrows: standard box frame models including 7.5' units
• Angle Frame Disc Harrows: cast iron spacer and lock nut applications
• ATV Disc Harrows: shared bump washer and small hardware fitment

Key Notes

• Bearings: sealed disc bearing kits, bearing assemblies, and stand plates
• Blades: notched and round disc blades from 14 inch to 20 inch
• Axles: early and standard axle shafts plus short spacer spools
• Lift Components: lift arms, braces, and 3-point lift pin kits
• Hardware: jam nuts, lock nuts, hanger bolts, and washers

Why Choose Broken Tractor

• ✅ Correct fitment for King Kutter disc harrows
• ✅ Fast shipping from two US locations
• ✅ New and replacement parts for every generation

Frequently Asked Questions

What disc blade sizes fit a King Kutter box frame disc harrow?

Broken Tractor carries notched disc blades from 14 inch to 20 inch (SKU 189214-189220) and round disc blades (SKU 189116-189120) for King Kutter disc harrows. Measure your existing blade diameter and check the center hole before ordering. Match the part number to your setup, or confirm with the parts team if you are unsure which blade your harrow uses.

What bearing parts do I need for a King Kutter box frame disc harrow?

We carry the Box Frame Disc Harrow Bearing Assembly (SKU 504110), the Sealed Disc Bearing Kit (SKU 504125), and the Bearing Stand Plate (SKU 324055) for King Kutter box frame disc harrows. The stand plate holds the bearing to the frame, while the assembly and sealed kit cover the rotating disc gang. Confirm which piece is worn before ordering so you replace the right part.

What is the difference between the early and standard axle shaft for a King Kutter 7.5' box frame disc harrow?

Broken Tractor offers the Early Axle Shaft for the King Kutter 7.5' box frame disc harrow (SKU 178010L) and a standard Axle Shaft that covers the 178000-178010 range. The early shaft is specific to earlier 7.5' units, so match your unit against the part number. If you are not sure which generation you have, confirm the correct axle with the parts team before ordering.

Which lift arm fits a King Kutter box frame disc harrow?

We carry two lift arms for King Kutter box frame disc harrows: a 1/2 inch x 3 inch x 23 inch long arm (SKU 360170) and a 1/2 inch x 3 inch x 26 inch long arm (SKU 330003). Measure the length of your existing arm to pick the correct one. We also offer a Lift Arm Brace (SKU 360171) if the brace is worn or bent.

Do King Kutter box frame disc harrow spacers and cast iron spacers interchange with angle frame models?

Broken Tractor lists the Box Frame Disc Harrow Spacer (SKU 129550) and Short Spacer Spool (SKU 129525) for box frame models, along with a Large Cast Iron Spacer (SKU 129500) used on angle frame applications. These are different parts, so order by the frame type and part number that matches your harrow. If you need help matching a spacer to your machine, call (800) 909-7060.