Schumacher Disc Mower Knife | Replaces New Holland 84255700 | Radura PrimeLine | A00BM
Genuine Schumacher A00BM | 14° left-hand rotary disc mower knife designed as a premium replacement for New Holland OEM 84255700 used on selected New Holland disc mowers, Discbine, Durabine, headers, windrower heads, and mower conditioner systems.
This knife is part of the Schumacher German Radura PrimeLine premium cutting line, built for consistent cut quality, durability, and long service life in demanding mowing conditions.
Why 14° twist mower knives?
This balanced-lift design helps move crop smoothly over the cutterbar for clean cutting, steady feeding, and reliable crop flow in standard disc mower and mower conditioner applications.
Important – How disc mower knives work:
Each cutter disc uses two knives that are mirror images of each other. These knives are not interchangeable. One knife mounts on one side of the disc, and the matching opposite knife mounts on the other side to keep the disc balanced and cutting correctly.
Schumacher A00BM corresponds to the knife commonly referenced as New Holland 84255700. It is one half of the required knife pair on the cutter disc. The matching opposite knife is Schumacher A00BP, which replaces New Holland 84255699.
This is the counter-clockwise / left-turning knife in the matched pair. Some suppliers describe knives as “left-hand” or “right-hand,” but those terms can change depending on how the disc is viewed. The most reliable way to identify the correct knife is by the part number, knife shape, twist angle, and mounting dimensions.
Compatibility & Application Notes
- Premium replacement for New Holland 84255700.
- Fits selected New Holland Discbine / Durabine, disc mower, header, windrower head, and mower conditioner machines listed below.
- Verify rotation direction, twist angle, overall dimensions, and hole size before ordering.
- Always replace knives in pairs on the same disc to maintain balance and smooth operation.
Product Specifications
| Specification | Value |
|---|---|
| Part Number | A00BM |
| OEM Reference | 84255700 |
| Brand | Schumacher |
| Product Line | German Radura PrimeLine |
| Country of Manufacture | Germany |
| Knife Type | Disc Mower Knife |
| Rotation | Left-Hand / Counter-Clockwise |
| Twist Angle | 14° |
| Performance Profile | Higher Lift Design |
| Length | 116 mm / 4.57" |
| Width | 50 mm / 1.97" |
| Thickness | 4mm / 1/8" |
| Hole Diameter | 22.6 mm / 0.89" |
| Box Quantity | 25 Knives (Priced individually) |
Fits Machines
| Brand | Machine Type | Models |
|---|---|---|
| New Holland | Discbine / Mower Conditioner | Discbine 313, Discbine 316 1409, 1410, 1411, 1412 1431, 1432 1441, 1442 615, 616, 617 H6730, H6740, H6750 |
| New Holland | Durabine Disc Head | Durabine 416, Durabine 419 |
| New Holland | Disc Head / Windrower Head | DC133, DC163 RD163, RD193 |
Cross Reference
| Brand / System | Part Number | Notes |
|---|---|---|
| New Holland (OEM) | 84255700 | Primary OEM reference |
| Case IH (OEM) |
84255700, 86621873 86621873DS, 86561092 48054136 |
OEM cross reference |
| Schumacher | A00BM | Premium German-made replacement knife |
| Recognized Aftermarket |
AM84255700, 702471 798-RM1092, 798RM1092 DM8400F, A-84255700-AI RSP255700 |
Common aftermarket interchange numbers |