Thinking Tires? Think Big

Challenger side view 1Challenger Fertilizer Opener, a new mission for seasoned components to increase your productivity

The design of our Challenger Fertilizer Opener started with its predecessor the 2959 Series Fertilizer Coulter. Over five years ago innovative growers found a solution for their fertilizer placement problem in sandy soil by running the 2959 Series Planter Unit Mounted Fertilizer injector at a slight angle to the direction of travel. While the 2959 Series is designed to run straight with the direction of travel, the slight angling of the coulter blade had many benefits. The wider trench made by the angled coulter blade made it easier to position the injector plus removed crucial adjustments required to operate in a narrower slot. As a result, fertilizer was placed in a consistent band next to the row with a significant reduction in fertilizer splash that happens when the injector and trench are misaligned.
Challenger side view 2With the injector operating in a protected zone created by the angled coulter blade both wear and the potential for damage were greatly reduced. This same concept was integrated into the design of the Challenger, a stainless steel tube with a strategically placed wear plate deposits the fertilizer into the slot made by the angled coulter blade. Operating in the shadow of the Challenger coulter blade the stainless steel tube deposits fertilizer in a well defined trench. An added benefit to utilizing a simple tube design is that you don’t have to contend with a knife, shoe, or frog. What this means to you: proven reliability that results in less down time and greater productivity.
Mounting BracketWith the injector operating in a protected zone created by the angled coulter blade both wear and the potential for damage were greatly reduced. This same concept was integrated into the design of the Challenger, a stainless steel tube with a strategically placed wear plate deposits the fertilizer into the slot made by the angled coulter blade. Operating in the shadow of the Challenger coulter blade the stainless steel tube deposits fertilizer in a well defined trench. An added benefit to utilizing a simple tube design is that you don’t have to contend with a knife, shoe, or frog. What this means to you: proven reliability that results in less down time and greater productivity. What this means to you: proven reliability that results in less down time and greater productivity.
Coulter BladeLike all models of Yetter coulters, the Challenger is equipped with a boron steel coulter blade. Coulter blades made from boron steel are proven to provide the best wear characteristics, which results in longer blade life and less chance of breakage. A slight bevel on the outer edge of the smooth blade creates a sharp cutting edge to sever residue. An added bonus is that the blade self-sharpens over time. The 2986 Series Avenger® and 3000 Series Viper® II with angled coulter blades both incorporate the same design. What this means to you: proven reliability that results in less down time and greater productivity.
Hub AssemblyThe Challenger hub assembly is the backbone of the opener. This extremely reliable hub has been in production for over 30 years with hundreds of thousands in use today. Each hub is greasable and is equipped with tapered roller bearings - the focal point to hold the coulter blade at a constant angle so a consistent trench in the soil is opened for depositing fertilizer. What this means to you: proven reliability that results in less down time and greater productivity.
  1. Coulter arm
  2. Coulter blade
  3. Grade five carriage bolts
  4. Grease zerk
  5. Hubcap
  6. Triple lip seal
  7. Cotter pin
  8. Tapered roller bearings
  9. Heavy-duty cast hub frame
  10. 1 ¼” heavy-duty spindle
Soil Disruption Guard The final feature of the Challenger is the soil disruption guard; the key component that holds in place the soil that is compressed by the angled coulter blade. The benefit is that there is no soil disruption near the seed trench. Because of soil compression, there is a tendency with other models for the soil to be lifted and displaced at the place the coulter blade exits the soil. But the wide footprint of our Challenger soil disruption guard not only holds the soil in place as the blade exits but also holds it in place along the entire coulter blade for added soil control. Our exclusive floating soil disruption guard follows the soil contour and is equipped with a poly skid shoe to prevent soil build-up. As an added bonus you will not need any wrenches to adjust the down-force of the soil disruption guard. The 2986 Series Avenger® and 2987 Series Magnum™ fertilizer coulter have used this proven design for years. What this means to you: proven reliability that results in less down time and greater productivity.


With improved reliability from field-proven components you’ll gain a quicker return on investment for your farming operation. Buy with confidence knowing each Challenger reflects the 25-plus years of experience Yetter has in building fertilizer application products, especially fertilizer coulters.

Optional equipment: For Residue Management choose between: a Floating Titan Residue Manager or a Screw Adjust model mounted to the Challenger.

Soil Disruption Guard Soil Disruption Guard
Profitable Solutions for Production Agriculture
Established in 1930 and based in Colchester, Illinois, Yetter Manufacturing Company is the industry leader in planter attachments that boost productivity and profitability. Yetter makes a variety of coulters, residue managers, precision fertilizer placement products, markers, and bulk seed handling devices. Contact us today for information on this product:
Yetter Manufacturing Company
P.O. Box 358 • Colchester, IL 62326-0358
Phone: (800) 447-5777 • Fax: (309) 776-3222
E-Mail: info@yetterco.com
Web: www.yetterco.com