AIC Tillage | Vortex 20 Wave Coulter Disc Blade | 20.5" x 6.5mm | Replaces Great Plains 820-011C | AICT-0014
AIC Tillage AICT-0014 | 20.5" x 6.5mm vortex wave coulter disk blade with a 1-3/4" round center hole, designed as a direct replacement for Great Plains OEM 820-011C used on Turbo-Max, Turbo-Till, and Turbo-Chopper vertical tillage systems.
This 20 wave vertical tillage disk blade is built from high-strength, heat-treated steel for long service life in demanding field conditions. The aggressive vortex wave design improves residue sizing, soil mixing, and surface leveling while maintaining consistent ground contact at higher operating speeds.
Why vortex wave blades?
The multi-wave profile cuts and lifts soil more effectively than flat or low-wave blades, improving residue breakdown and reducing compaction zones. This makes it ideal for high-speed vertical tillage applications where consistent soil flow and finish are critical.
This 6.5mm heavy-duty blade is commonly used as an upgrade from standard 5mm blades, providing longer wear life and improved durability. Commonly referred to as a turbo blade, wave coulter, vertical tillage disc, disk blade, or vortex blade, this style is widely used in high-speed residue management and seedbed preparation.
Compatibility & Application Notes
- Direct replacement for Great Plains 820-011C.
- Fits Great Plains Turbo-Max, Turbo-Till, and Turbo-Chopper models.
- Also fits other vertical tillage tools using 20.5" diameter, 6.5mm thickness, and 1-3/4" round bore.
- Always verify diameter, thickness, and center hole size before ordering.
Product Specifications
| Specification | Value |
|---|---|
| Part Number | AICT-0014 |
| OEM Reference | 820-011C |
| Brand | AIC Tillage |
| Blade Type | Vortex 20 Wave Coulter Disc |
| Diameter | 20.5" |
| Thickness | 6.5mm |
| Centre Hole | 1.75" Round |
| Bolt Pattern | N/A (center mount) |
| Weight (est.) | 23.5 lbs |
| Application | Vertical tillage equipment |
Fits Machine Models
| Brand | Model |
|---|---|
| Great Plains |
Turbo-Max (TM) 850TM, 1000TM, 1200TM, 1500TM, 1800TM, 2400TM 3000TM, 3500TM, 4000TM, 4800TM Turbo-Max Narrow (TMN) 1950TMN, 2600TMN Turbo-Till (TT) 1000TT, 1100TT, 1200TT, 1500TT, 1700TT, 1800TT 2200TT, 2400TT, 3000TT, 4000TT Turbo-Chopper (TC) 1200TC, 1500TC, 1800TC, 2400TC, 3000TC, 4000TC |
Cross Reference
| Brand / System | Part Number | Notes |
|---|---|---|
| Great Plains (OEM) | 820-011C | Primary OEM reference for 20" x 6.5mm 20-wave vertical tillage blade |
| Aftermarket Cross Reference |
WN-820-011C SH82011 845-VX201418 |
Common aftermarket vortex and wave-style replacement part numbers for vertical tillage blades |