2026-08-01
The knife section is one of the most frequently replaced wear parts on a combine harvester. Choosing the correct one avoids downtime and premature wear. Here are the key points to check.
The fastest way to confirm fit is the part number stamped on the old section, or the combine model (for example John Deere, New Holland, Case IH or Claas). Send it to your supplier and they can match the exact replacement.
Common section lengths are 76 mm and 95 mm, but always measure the original. A section that is too long or too short will not align with the guards and ledger plates.
Sections are usually mounted with a 2-bolt pattern. Confirm the hole spacing and countersink match your knife back before ordering in volume.
High-carbon spring steel with a hardened cutting edge gives longer service life in abrasive crops. Ask for the material and hardness specification if you cut in sandy or high-wear conditions.
Plain (smooth-edge) and notched (serrated) sections suit different crops and cutting speeds. If you are unsure, describe your crop and machine to your supplier for a recommendation.
Bottom line: with the OEM number, length, bolt pattern and material confirmed, you can order standard-spec sections by the carton with confidence. Send us your part number and we will confirm the match within 24 hours.