Granit 8" Triple Cutterbar Guard for John Deere Grain Headers - Code 525H25603
The heavy-duty Granit triple knife guard and ledger plate unit (Product Code: 525H 25603) is a high-grade structural replacement component engineered for combine harvester cutting platforms. Designed as a direct precision match for factory original equipment codes John Deere H25603, H153855, and H171032, this 8-inch nominal spacing triple finger guard ensures flawless linear alignment of the reciprocating knife sections, delivering a clean, precise, and low-loss crop shear even under dense, tangled, or down-crop field parameters.
Design Details and Granit Parts Material Engineering
This structural cutterbar component is fully hot-forged from premium alloy steel, treated with localized induction-hardening cycles across the knife-bearing guide surfaces. This metallurgical design yields an incredibly hard outer wear guscio to minimize friction against the moving sickle sections, while retaining a high-elastic internal core to survive sudden impacts from stones, soil banks, or uneven ground contours. Granit triple fingers secure optimal structural fitment tolerances, suppressing loose mechanical play and parasitic dynamic drag. The hydrodynamic slim-profile nose and precision-ground shear edges on the internal ledger lines cleanly snap stalks into the auger trough, maximizing combine operational yield while minimizing mechanical maintenance intervals through extended field lifespan stability.
Technical Specifications
| Component Classification |
Triple prong grain guard / heavy reciprocating sickle bar guide finger |
| Nominal Dimensional Footprint |
8 inches (8") |
| Component Unit Weight |
830 g |
| Material Composition |
Induction-hardened forged structural high-tensile steel line |
| Original Equipment (OEM) References |
JOHN DEERE: H25603, H153855, H171032, H 25603, H 25603200 |
| Manufacturer Quality Tier |
GRANIT PARTS (Certified premium aftermarket equipment fitment standard) |
| Product Reference Code |
525H 25603 |
Application Matrix & John Deere Header Fleet Compatibility
| Platform Header Range |
Compatible John Deere Sickle Bar / Cutting Implement Models |
| 200 Series |
Header 200, Header 215, Header 216 |
| 600 Series |
Header 600, Header 614, Header 615, Header 616, Header 618, Header 620, Header 622, Header 625 |
| 800 Series |
Header 800, Header 810, Header 812, Header 814, Header 816, Header 818, Header 822, Header 825 |
| 900 Series |
Header 900, Header 913, Header 918, Header 922, Header 924, Header 925, Header 930, Header 932, Header 935, Header 942 |
| 1000 Series |
Header 1032, Header 1042, Header 1055 |
| 6000 Hillside Combine Units |
Model 6602, Model 6622 |
