The Ag Express JDRC3 to Dual JDRC Harness Adapter allows operators to connect a John Deere Rate Controller 3 (JDRC3) to two GS2 Liquid Rate Controller harnesses, creating a reliable solution for dual-product application systems. Designed for use with NH3 and liquid fertilizer combinations or dual liquid fertilizer applications, this adapter supports 6 sections per product, delivering a total of 12 sections of precise application control.
Built for upgrade and retrofit applications, this adapter harness simplifies the transition from older GS2-based systems to the more advanced JDRC3 platform without requiring a complete harness replacement. By preserving existing implement wiring infrastructure, operators can modernize rate control functionality while minimizing downtime and installation complexity.
An optional lift switch input is included to support implement position sensing and application control, making this harness an excellent fit for multi-product applicators and precision agriculture systems that require accurate section management.
Manufactured to Ag Express quality standards, this harness is built to withstand demanding field conditions and provides dependable performance for liquid fertilizer, starter fertilizer, and NH3 application systems.
Key Features
- Adapts John Deere Rate Controller 3 (JDRC3) to two GS2 Liquid Rate Controller harnesses
- Supports NH3 + liquid fertilizer or dual liquid applications
- 6 sections per product for precise section control
- 12 total sections across both harnesses
- Includes optional lift switch input
- Preserves existing dual-harness wiring infrastructure
- Manufactured by Ag Express
Benefits
- Enables dual-product control from a single JDRC3 controller
- Simplifies GS2 to JDRC3 upgrade projects
- Reduces installation time and wiring modifications
- Supports multiple fertilizer application configurations
- Helps lower upgrade costs versus full harness replacement
- Maintains clean, secure, and reliable connections
- Improves section-level application accuracy
Compatibility
Designed for operations upgrading from dual GS2 Liquid Rate Controller systems to the John Deere Rate Controller 3 (JDRC3).
Controller Side
- John Deere Rate Controller 3 (JDRC3)
Implement Harness Side
- Two GS2 Liquid Rate Controller harnesses
- 6 sections per product
Supported Application Configurations
- NH3 and liquid fertilizer
- Dual liquid fertilizer
- Starter fertilizer and liquid combinations
Additional Features
- Optional lift switch input for implement position sensing
Always verify compatibility with your controller, implement harnesses, and section count before installation.
Applications
- Dual-product applicator upgrades
- NH3 and liquid fertilizer systems
- Dual liquid fertilizer application
- Starter fertilizer combination systems
- GS2 to JDRC3 conversion projects
- Precision application retrofits and service replacements
Warranty
This product is backed by Ag Express’s standard warranty covering defects in materials and workmanship under normal use. Warranty does not apply to damage caused by improper installation, misuse, or unauthorized modifications.
For installation support or compatibility questions, contact Ag Express Customer Support prior to installation.
