Nothing stops field work faster than electrical gremlins, and old wiring is usually the culprit. When your David Brown 990 Selectamatic starts acting up—lights flickering, gauges going haywire, or worse yet, no start at all—chances are it’s time to replace that aging wiring loom. This replacement harness gets your electrical system back to factory fresh, so you can focus on getting work done instead of chasing down shorts and bad connections.
What You’re Getting
- Complete wiring loom designed specifically for the 990 Selectamatic electrical system
- All the proper gauge wire and connectors to match your tractor’s original setup
- Color-coded wires that match factory standards for easy installation
- Weather-resistant insulation that stands up to farm conditions
Built for Real Farm Work
The David Brown 990 is a respected vintage utility workhorse from the 1960s and early 1970s, excelling in light farm work and grounds maintenance. These reliable tractors remain popular for hobby farming, estate management, and restoration projects where maintaining original electrical integrity matters.
Made to Last
This wiring loom is built to handle the constant vibration, temperature swings, and moisture that come with farm life. The insulation won’t crack in cold weather or get brittle from engine heat, and the connections are designed to stay tight through years of use.
Good to Know
Installation goes smoother if you take photos of your original wiring setup before disconnecting anything. Disconnect your battery first to avoid electrical surprises, and take note of which wire goes where—a photo helps. While you’re in there, it’s smart to clean all the connection points since corrosion is often why electrical systems act flaky on these vintage tractors.








