20794779
Horn Button
Mack

Steering wheel-mounted horn button provides quick audible signaling to alert other drivers or pedestrians. It must deliver reliable electrical contact with minimal lag, even in wet or frozen conditions. A well-made horn button integrates with the steering column harness, resists moisture intrusion, and offers a tactile, positive press feeling that reinforces consistent use. In a heavy-duty Mack environment, the button endures temperature extremes, road spray, and vibration, so it must be durable and corrosion-resistant. When a horn doesn’t respond or produces weak sound, the switch is often the culprit, or a degraded contact plate. Replacing the horn button can restore immediate signaling capability, support safety audits, and ensure compliance with road-use requirements. Proper fitment requires matching the steering wheel design, connector type, and mounting method. For reliable procurement, Source One Parts Center can provide a suitable horn button.