Dual Roll Earlage Adapter With Floating Top Roll to fit John Deere® (8000 & 9000 series)

The K9900 is used for harvesting just the ears of corn using the row crop header to make earlage. Earlage is harvested later than silage, giving the producer a longer working window, and it provides a product that reduces the amount of roughage that needs to be fed compared to a corn-based ration. This dual roll adapter is highly recommended for operations exceeding 300 acres of earlage, providing consistent performance and durability.

These adapters are known for their robustness, with many customers experiencing over 10 years of use. Typically, replacement occurs when a customer trades brands or upgrades their harvester.

This adapter is specifically made for John Deere® 8000 and 9000 series self-propelled forage harvesters. It facilitates the connection between the harvester and a row-crop header, making the transition from silage harvesting to earlage harvesting simple. Installation is the same as hooking up any other implement, and the adapter can be left on the harvester or corn head when not in use. When left on the corn head, lift the adapter/corn head and hook up the PTOs.

Patent #10,743,467. Patent #8,376,126. Patent Pending.

Key Features

• Improved throat design for faster, smoother feeding
• Force feeds ear corn directly into feed rolls for consistent processing
• Floating top roll adapts to crop volume for improved throughput
• Patented design focused on performance and efficiency in earlage harvesting

Installation & Operational Notes:

• Use the K9000KIT or K8000KIT to block up the feed rolls, optimizing performance during operation.
• Highly recommend using bottom earlage pans to make the feed roll chamber like a tunnel, ensuring smooth and consistent crop flow.
• You will need to remove the quick coupler from the forage harvester and use the K8000DL to drive the earlage adapter, providing a more efficient feeding angle of the corn head. 

Installation of the K9900 Earlage Adapter is as simple as hooking up any other implement. You can leave the adapter on the harvester or corn head when not in use. When leaving the adapter on the corn head, simply pick up the adapter/corn head and hook up the PTOs.

Measuring Your PTO Connection:

To ensure proper compatibility, measure the Hex shaft on your corn head by removing the PTO where it connects to the frame. Common sizes include:

• 1-1/8”
• 1-1/4”
• 1-1/2”

If you want to use the header height control in your harvester, you will need our K31-EXT Header Height Control Extension Cord.

Why Choose Kooima Ag?

Kooima Ag is the leader in header adapter manufacturing. We continuously test and implement customer feedback to offer some of the best products on the market. Our customers have trusted our adapters for over a decade, and we are committed to maintaining the highest standards of quality and performance.

Product Overview
Kooima Ag's earlage adapters allow operators to run a variety of corn head brands with forage harvesters, giving you flexibility and compatibility without compromising performance. Whether you're outfitting your harvester for a new header or adapting an existing setup, our conversion kits make the switch easy and efficient.

Compatible Header Brands & Required Conversion Kits:

• John Deere headers – no conversion kit needed
• New Holland® & Case IH® 3000 Series Headers:
  (For throats with angle supports in the top corners)
  Use Conversion Kit: K98CJD
• New Holland® & Case IH® 2608, 2612, and 4000 Series Headers
  Use Conversion Kit: K4000CH
• Lexion® Headers:
  Use Conversion Kit: KLEXKIT
• Harvestec® & Cressoni® Headers:
  Please purchase S Series John Deere® mounting brackets separately to complete the installation
• Geringhoff® Headers:
  Use Conversion Kit: KGCKIT

WARNING:  Grinding earlage with the use of corn heads and choppers can cause a risk of fire.  The risk of fire does not emanate from the adapter products described here, but can be caused by the heat generated by the choppers.  To reduce the risk of fire, please keep the chopper clear of dust.