Greater Flexibility in Every Component

Every farmer fears the thought of ingesting a rock or foreign object into their combine. This is never a good thing, but our KX7 concaves keep repair costs to a minimum.

The box-insert design of our KX7 concaves may allow you to replace individual components rather than a full concave. Replacement parts are available for box inserts, frames, front ramps, and wedge locks. This could save you hundreds, if not thousands, of dollars!

Our replaceable KX7 components also allow for greater flexibility in configuring your concaves. While most users stick to our recommended configurations, those with unique field conditions have tinkered with their KX7 assemblies by mixing MaxThresh™ and MaxRound™ box inserts in a single frame.

Case IH Flagship

Models: 7010, 7120, 7230, 7240, 7250, 7260, 8010, 8120, 8230, 8240, 8250, 8260, 9120, 9230, 9240, 9250, 9260
  • BA1-011: KX7 Empty Frame (RH)
  • BA1-021: KX7 Empty Frame (LH)
Standard Box Inserts
  • BB7-X04: KX7 MaxThresh Box Insert
    Available for all combine offerings and comes standard with our exclusive TungstrongTM laser cladding wear enhancement on the threshing bars.
  • BB7-R05: KX7 MaxRound Box Insert
    Available for all combine offerings and includes heat treated separation bars.
Specialty Threshing Box Inserts
  • BB7-X06: MaxThresh Small Hole Box Insert
    Used with stripper headers or in low-yield small grains where smaller hole openings deliver greater performance.​​​​​​​
  • BB7-M01: MaxBlock Box Insert
    Used with smooth-flow crops, such as canola, sunflower, or clover.
  • BB7-X07: MaxClosed Box Insert
    Used with stripper headers and in the toughest-threshing conditions of crops like wheat, durum, and clover.
    ​​​​​​​
Specialty Separation Box Inserts
  • BB7-S02: MaxGrate Box Insert
    Used for greater separation in smaller seed crops, such as grass and canola.​​​​​​​
  • BB7-R06: MaxFlow Box Insert
    Used for grass seed harvesting, where their smaller bars increase crop flow without the hairpinning of traditional concaves.​​​​​​​

Select early model Flagship machines may require a ramped front concave. Learn more about our KX7 options and configurations for these combines.

Case IH Mid-Range

Models: 1680, 1682, 1688, 2188, 2377, 2388, 2577, 2588, 5088, 5130, 5140, 5150, 6088, 6130, 6140, 6150, 6160, 7088, 7130, 7140, 7150, 7160
  • BA1-001: KX7 Frame
  • BA1-L05: KX7 Front Ramp
Standard Box Inserts
  • BB6-X04: KX7 MaxThresh Box Insert
    Available for all combine offerings and comes standard with our exclusive TungstrongTM laser cladding wear enhancement on the threshing bars.
  • BB6-R05: KX7 MaxRound Box Insert
    Available for all combine offerings and includes heat treated separation bars.
Specialty Threshing Box Inserts
  • BB6-X06: KX7 MaxThresh Small Hole Box Insert
    Used with stripper headers or in low-yield small grains where smaller hole openings deliver greater performance.
  • BB6-M01: KX7 MaxBlock Box Insert
    Used with smooth-flow crops, such as canola, sunflower, or clover.
  • BB6-X07: KX7 MaxClosed Box Insert
    Used with stripper headers and in the toughest-threshing conditions of crops like wheat, durum, and clover.
Specialty Separation Box Inserts
  • BB6-S05: KX7 MaxGrate Box Insert
    Used for greater separation in smaller seed crops, such as grass and canola.
  • BB6-R06: KX7 MaxFlow Box Insert
    Used for grass seed harvesting, where their smaller bars increase crop flow without the hairpinning of traditional concaves.

Challenger/Gleaner/Massey Ferguson

Challenger Models: 660, 660B, 670, 670B
Gleaner Models: A65, A66, A75, A76
Massey Ferguson Models: 8560, 8570, 8780, 8780XP, 9520, 9690, 9695, 9790, 9795
  • BA3-001: KX7 Frame
  • BB8-X04: KX7 MaxThresh Box Insert
  • BB8-R02: KX7 MaxRound Box Insert

John Deere S/STS

Models: S550/S650, S660, S670, S680, S690, S760, S770, S780, S790, 9650 STS,
9650 STS, 9660 STS, 9670 STS, 9750 STS, 9760 STS, 9770 STS, 9860 STS, 9870 STS
S7 600, S7 700, S7 800, S7 900
  • BA2-001: KX7 Empty Frame
  • BA2-L02: KX7 Front Ramp
Standard Box Inserts
  • BB6-X04: KX7 MaxThresh Box Insert
    Available for all combine offerings and comes standard with our exclusive TungstrongTM laser cladding wear enhancement on the threshing bars.​​​​​​​
  • BB6-R05: KX7 MaxRound Box Insert
    Available for all combine offerings and includes heat treated separation bars.​​​​​​​
Specialty Threshing Box Inserts
  • BB6-X06: KX7 MaxThresh Small Hole Box Insert
    Used with smooth-flow crops, such as canola, sunflower, or clover.​​​​​​​
  • BB6-M01: KX7 MaxBlock Box Insert
    Used with smooth-flow crops, such as canola, sunflower, or clover.​​​​​​​
  • BB6-X07: KX7 MaxClosed Box Insert
    Used with stripper headers and in the toughest-threshing conditions of crops like wheat, durum, and clover.
    ​​​​​​​
Specialty Separation Box Inserts
  • BB6-S05: KX7 MaxGrate Box Insert
    Used for greater separation in smaller seed crops, such as grass and canola.​​​​​​​
  • BB6-R06: MaxFlow Box Insert
    Used for grass seed harvesting, where their smaller bars increase crop flow without the hairpinning of traditional concaves.​​​​​​​
Locks
  • BA2-H01: Keyway Lock

  • 904-695: Wedge Lock

John Deere: X9

Models: X9 1000, X9 1100
  • F00-060: Empty Frame (LH and RH)
  • F00-061: MaxRound Box Insert (LH)
  • F00-062: MaxRound Box Insert (RH)
  • F00-063: MaxThresh Box Insert (LH)
  • F00-064: MaxThresh Box Insert (RH)
  • F00-065: MaxThresh Small Hole Box Insert (LH)
  • F00-066: MaxThresh Small Hole Box Insert (RH)

New Holland

  • 716-085: KX7 Empty Frames (LH and RH)
Main Frame Box Inserts
  • BB8-R11: KX7 MaxRound Box Insert (RH)
  • BB8-R21: KX7 MaxRound Box Insert (LH)
  • BB8-X11: KX7 MaxThresh Box Insert (RH)
  • BB8-X21: KX7 MaxThresh Box Insert (LH)
Adjustable Frame Box Inserts
  • BB8-R12: KX7 MaxRound Box Insert (RH)
  • BB8-R22: KX7 MaxRound Box Insert (LH)
  • BB8-X12: KX7 MaxThresh Box Insert (RH)
  • BB8-X22: KX7 MaxThresh Box Insert (LH)