Schumacher Disc Mower Knife | Replaces New Holland 84271203 | Radura PrimeLine | A00BR
Genuine Schumacher A00BR | 18° right-hand rotary disc mower knife designed as a premium replacement for New Holland OEM 84271203 used on selected New Holland and Case IH disc mowers, Discbine, Durabine, headers, 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 18° twist mower knives?
The maximum-lift design helps move crop aggressively over the cutterbar for improved feeding, cleaner cutting, and strong crop flow in light, downed, or difficult crop conditions. It provides more lift than 14° or flatter low-angle knives while maintaining dependable cutting performance.
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 A00BR corresponds to the knife commonly referenced as New Holland 84271203. It is one half of the required knife pair on the cutter disc. The matching opposite knife is Schumacher A00BQ, which replaces New Holland 84271205.
This is the clockwise / right-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 84271203.
- Fits selected New Holland Discbine / Durabine and Case IH DC / RD series 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 | A00BR |
| OEM Reference | 84271203 |
| Brand | Schumacher |
| Product Line | German Radura PrimeLine |
| Country of Manufacture | Germany |
| Knife Type | Disc Mower Knife |
| Rotation | Right-Hand / Clockwise |
| Twist Angle | 18° |
| Performance Profile | Maximum Lift Design |
| Length | 116 mm / 4.57" |
| Width | 50 mm / 1.97" |
| Thickness | 4.1 mm / 0.16" |
| Hole Diameter | 22.6 mm / 0.89" |
| Box Quantity | 25 Knives (Priced individually) |
Fits Machines
| Brand | Machine Type | Models |
|---|---|---|
| New Holland | Mower Conditioner | Discbine 313, Discbine 316 Durabine 416, Durabine 419 |
| Case IH | Header / Mower Conditioner | DC133, DC163 RD163, RD193 |
Cross Reference
| Brand / System | Part Number | Notes |
|---|---|---|
| New Holland (OEM) | 84271203 | Primary OEM reference |
| Schumacher | A00BR | Premium German-made replacement knife |
| Recognized Aftermarket |
A-AM84271203, AM84271203 DM8403C, 798-RM84271203 798RM84271203, D21672 D21-672, SM-798-RM84271203-6 |
Common aftermarket interchange numbers |