Bulb & Socket

The AutoMeter Bulb & Socket (Part Number 3220) is an essential replacement component for gauge illumination and electrical connectivity in modern automotive instrumentation. As a mechanic, you know that instrument cluster reliability depends on quality bulbs and secure socket connections—any flickering or failed illumination compromises visibility and diagnostic capability. This OEM-spec bulb and socket assembly addresses both concerns in one compact unit, making it ideal for restoring gauge backlighting on dash clusters across multiple vehicle platforms.

AutoMeter's bulb and socket design ensures consistent light output and stable electrical contact under the thermal cycling your dashboard experiences during operation. The assembly features a properly engineered socket that prevents loose connections and corrosion—common failure points in older clusters—while the bulb delivers even illumination across gauge faces without hot spots. Measuring 3.8 x 0.95 x 3.8 inches and weighing just 0.04 lbs, the compact form factor fits tight gauge mounting spaces without interfering with surrounding components or wiring harnesses. The low weight and precision engineering minimize installation time, allowing you to complete gauge restoration quickly without unnecessary dashboard disassembly.

Technicians and enthusiasts tackling instrument cluster repairs, custom gauge installations, or dashboard LED conversion projects rely on this bulb and socket for direct plug-and-play replacement or retrofit applications. Whether you're diagnosing a non-illuminated speedometer on a classic restoration or upgrading a stock cluster with modern gauges, this AutoMeter assembly provides the electrical and optical performance expected from a premium gauge manufacturer. Keep this part in your shop for quick turnaround repairs, or stock it for gauge customization builds where proper illumination directly impacts driver experience and cluster visibility during night driving.