Trailer Air Supply Knob Cover, Air Brake Cover for Red Trailer Air Supply Knob 298817N, Rubber Protective Cap for School Bus Trailer Tractor Air Brake Controls, Non-Slip Brake Valve Knob Protector

Upgrade your driving comfort and protect your brake controls with this premium Air Brake Knob Cover, specially designed to fit the widely used 298817N red trailer air supply knob found in trucks, buses, and trailers. The original knob is part of the air brake control system used to manage trailer air supply in heavy-duty vehicles —and this protective cover enhances both usability and durability in daily operation.

• FIT FOR 298817N RED TRAILER KNOB: The air brake knob cover fits for 298817N red MV-3 dash valve button, ensuring a snug and secure fit without slipping or loosening during operation.This protector cap is ideal for semi trucks, school buses, and heavy-duty vehicles
• IMPROVED SAFETY & COMFORT: The truck brake cap helps prevent accidental slips and reduces finger fatigue during frequent braking operations. A simple upgrade that enhances driving comfort and control.
• PREMIUM RUBBER PROTECTION: This brake knob cap is made from high-quality flexible rubber. This trailer air supply knob cover effectively absorbs shock and reduces wear on your air brake knob, helping extend the lifespan of your brake control system
• NON-SLIP & ENHANCED GRIP: The cover surface provides a firm, non-slip grip, making it easier and safer to operate the air brake control
• EASY INSTALLATION: Quick to install—just stretch and fit over the trailer air supply brake valve knob. The school bus air brake knob cover is compatible with most tractor trailer, truck, RV, and bus air brake control valves, making it a practical trailer air supply accessory for professional drivers