

TK TerraNav provides aftermarket GPS guidance systems and RTK receivers that work seamlessly with your equipment.
As an authorized dealer for AGRA-GPS, we offer plug-and-play compatibility on all John Deere and AgLeader systems as well as bridging different brands and making mixed fleets easy to manage.
Whether you're running autosteer, data collection, or precision planting, our receivers are designed to give you sub-inch accuracy at a fraction of the long-term cost of OEM systems.

Compatible
Our GPS receivers work across John Deere, AGCO, CNH, CLAAS, and more—giving you full cross-brand flexibility without switching out your existing displays or hardware.
Reliable
Backed by 50,000+ hours of field testing across North America, Europe, and Australia, our systems are proven to perform in real-world conditions with consistent RTK accuracy.
Subscription-Free
Say goodbye to unlock codes, recurring fees, and hidden costs. With TK TerraNav, you buy it once and own it—with full RTK capability included from day one.
A Better Way to Run GPS
Based in East Central South Dakota, TK TerraNav was founded by a multi-generational ag family that understands what it takes to keep a mixed fleet moving. Tired of subscription fees, locked-down systems, and compatibility issues, we went looking for a better option—and found it in AGRA-GPS.
Now, we help other farmers upgrade their guidance without the headaches. No subscriptions. No brand restrictions. Just GPS that works—green, red, yellow, or all of the above.


