Precision grinding guarantees an excellent cutting edge and helps original knives stay within the extremely narrow band of optimum weight tolerances.
Original John Deere straw chopper knives are zone hardened, allowing them to withstand higher stress levels.
To prevent cracks in the area of the pivot hole, John Deere knives are reamed after punching to ensure loads on the rotor are evenly spread.
WARNING/ADVERTENCIA -Cancer and Reproductive Harm/Cáncer y Daño Reproductivo. www.p65warnings.ca.gov
Original John Deere chopper knives are induction hardened. That’s important for ensuring they can take the truly extraordinary wear and tear they are subjected to, especially at the punched hole and the serrated edges. The process also ensures material elasticity is maintained to eliminatebrittleness.
Product Dimensions
Weight
5.361 lb
Height
1.7 in
Width
2 in
Length
7.5 in
For the most accurate fit and confidence, please select the equipment you are shopping for. Parts can be used across a number of different models, the models shown here indicate general fit of the part.
S7 600
S7 700
S7 800
S7 850
S7 900
S650
S660
S660 PRECISION UPGRADES
S670
S670 PRECISION UPGRADES
S670H
S680
S680 PRECISION UPGRADES
S680H
S685
S685H
S690
S690 PRECISION UPGRADES
S690H
S760
S770
S780
S780 PRECISION UPGRADES
S785
S790
S790 PRECISION UPGRADES
T5 400
T5 500
T5 600
T5 700
T6 500
T6 600
T6 700
T6 800
Return Information
Return Items identified as ‘Eligible for Return’ are eligible
for refund within 30 days of invoicing. Returned Items must be
returned in new condition and in its original packaging with
all paperwork including manuals, assembly instructions and
your packing slip. Parts must be returned to the seller listed
on your e-commerce invoice. Return eligibility & processing
will be verified by the dealer at time of return. View Return Policy for complete information.
Generally, parts purchased from Shop.Deere.com are covered by the John Deere Parts Warranty, covering defects in material and workmanship, for a minimum period of 6 months from receipt. For complete warranty information, please contact your local authorized John Deere dealer.