- Discover the ultimate selection of 3/4 Inch Round grommets designed for semi trucks, ensuring a perfect fit and superior performance. Our extensive range includes the Wide Channel 3/8 Inch Grommet for M09300 Series, Black Sealing Grommet for MCL11 Series 3/4 Inch Lights, and various other high-quality options such as the 1.08" by 1.08" by .45" Grommet for 3/4 Inch Lights, Standard Grommet for 3/4 Inch Lights, 1.09" by 1.09" by .44" Sealing Grommet for 3/4 Inch Lights, 1.1" by 1.1" by .44" Sealing Grommet for 3/4 Inch Lights, and the 1.09" by 1.09" by .46" Sealing Grommet for 3/4 Inch Lights. Additionally, we offer the Black Vinyl Grommet for M09300, Standard Grommet for 3/4 Inch Lights in a convenient 100 pack, and the durable 3/4 Inch Black Rubber Grommet. Each grommet is crafted to provide a secure seal and reliable protection for your lighting systems, making them an essential component for any semi truck, including popular models like the Peterbilt 379, Peterbilt 389, and Peterbilt 359. Whether you need a single grommet or a bulk pack, our products are designed to meet the highest standards of quality and durability. Shop now and ensure your semi truck's lights, such as the 57 inch tail lights and 3157 bulb, are securely and efficiently installed with our top-of-the-line 3/4 Inch Round grommets. Don't miss out on the best grommets for your 379 Peterbilt or 389 Peterbilt. Convert 33mm to inches easily and find the perfect fit for your needs. Enhance your truck's performance with our reliable grommets, and take action today to improve your vehicle's lighting system.