Features: Hill Descent Assist Button Switches (8W1927143A/4M1927143B) activates downhill assistance instantly, enhancing vehicle control and safety on terrains with OEM grade compatibility. Featuring a 0.01s response time and 50,000+ press test durability, the waterproof, dustproof switches uses UV resistant reinforced plastic for long lasting performances in harsh conditions. Ideal for owners navigating challenging off road trail or slopes, this ergonomic switches ensures quick access to downhill assist during critical driving moments. Optimize off road adventures or city drives with this switches, designed to reduce brake strain while maintaining stability on uneven mountain roads and slippery descents. Rigorously tested for electrical reliability, this switches delivers precisions engineering for enhanced driving confidence across diverse terrains. Specifications: Part number: 8W1927143A 4M1927143B Component: plastic Package Includes: 1 Set Hill Descent Assist Button note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.