4 PCS Universal Firewall Boot, Rubber Firewall Grommet Kit for 3/8 to 1 Inch OD Wire Harness, Safe and Convenient Grommets for Vehicle Running Cables, Car Accessories

Specification:Material: RubberQuantity: 4 PCSColor: BlackWeight: 0.2 lbSize: 3.72×1.82 inchesFeature: Flexible, Wear-Resistant, PracticalFit Type: Universal FitWhy do you need these firewall boots?-The covers can be reused, ensuring reliability and economy for long-term use.-Our products are waterproof, protecting cables from extreme weather conditions.-These firewall boots offer excellent shock absorption and elasticity, effectively preventing cable breakage.

• Superior Quality: These firewall protective covers are crafted from flexible rubber material, effectively blocking water, dust, and debris. Additionally, they resist high temperatures and corrosion, ensuring long-term stable operation in diverse, demanding environments
• Cuttable Structure: This firewall boot features a seven-layer precision construction with a bottom diameter of 3.72 inches and a top diameter of 0.56 inches, forming a naturally transitioning stepped profile. You may cut it to fit different connection components as needed
• Secure Retention: These automotive grommets effectively protect cables from damage caused by friction and vibration. Simultaneously, they secure cables to prevent loosening or breakage due to road bumps during operation, thereby enhancing the safety of the vehicle's electrical system
• Usage Steps: First, select or trim a sleeve to the appropriate size. Then drill a 1 1/4-inch hole in the firewall. Next, thread the sleeve onto the cable end and press it firmly into the drilled hole. Finally, organize the wiring harness to ensure no excessive tension
• Wide Application: This four-piece firewall boot fits wire harnesses with diameters ranging from 0.4 inches (3/8 inch) to 1 inch. It is suitable for wires and conduits in vehicles, boats, yacht boxes, RVs, and motorboats. Please review product specifications before purchasing