Truck-Lite 51343 – 50 Series 2-Plug Left Hand (LH) Driver Side 413 in. Turn Signal / Mid-Turn Harness (16 Gauge, Flat Cable, Fit 'N Forget S.S. to .180 Bullet Connectors)

Ensure reliable, heavy-duty electrical delivery along your commercial fleet with the Truck-Lite 51343 50 Series Turn Signal & Mid-Turn Wiring Harness. Specifically engineered for left-hand (LH / Driver Side) installation, this extra-long 413-inch (approx. 34.4 ft.) layout provides an extended reach designed to seamlessly route through the frames of long commercial trailers, tankers, and vocational trucks.

Built to withstand grueling over-the-road environments, the 51343 harness features a low-profile, flat cable design that minimizes bulk and resists pinching or snagging during installation. It contains three heavy-duty 16-gauge (16 AWG) color-coded conductors (Brown, Green, and White) that route optimal power to your mid-turn indicators and marker light configurations while reducing voltage drop over long spans.

This OEM-quality harness delivers superior protection at critical connection points. One end is integrated with Truck-Lite’s premium, molded Fit 'N Forget S.S. (Super Seal) connector to create an airtight, moisture-proof barrier directly at the lamp interface. The opposing end features standard .180 bullet terminals for secure compatibility with your vehicle's main lighting layout. This fully sealed construction actively keeps out corrosive moisture, heavy road salts, and dirt, protecting your circuitry from premature failure caused by continuous vehicle vibration.