Description
Product Overview
The Bomunik valve cover grommet is engineered from premium rubber to provide a resilient, oil‑resistant seal for a variety of engine applications. Measuring 5.5 x 5.5 x 3 inches and weighing only 8 ounces, it offers a perfect balance of durability and ease of handling. Manufactured by Bomunik, a trusted name in automotive components, this grommet meets strict quality standards and carries the model numbers 31336776389, 31336776390, and 31336771892. Its design ensures a snug fit that prevents oil leaks and protects the valve cover from contamination.
Usage
Ideal for both professional workshops and home garages, this grommet fits seamlessly into standard valve cover assemblies across a wide range of vehicle makes and models. Whether you are performing routine maintenance, rebuilding an engine, or replacing a worn seal, the grommet’s straightforward installation process saves time and reduces the need for specialized tools. DIY mechanics will appreciate the clear fit and the confidence that comes from using a part that has undergone rigorous testing.

Why Choose Us
Bomunik stands out for its commitment to quality and customer support. Each grommet undergoes comprehensive process testing to guarantee reliability and longevity. Our products are backed by a warranty, and our responsive service team is ready to assist with any installation questions or part‑matching concerns. When you choose this grommet, you benefit from a trusted brand, rigorous quality control, and a hassle‑free return policy if the product does not meet your expectations.
Key Features
- Premium rubber construction for superior oil resistance
- Compact dimensions (5.5 x 5.5 x 3 in) and lightweight (8 oz) for easy handling
- Fits multiple OEM part numbers: 31336776389, 31336776390, 31336771892
- Simple DIY installation with no special tools required
- Backed by Bomunik’s quality testing and warranty service
FAQ
What engine models are compatible with this grommet?
The grommet is designed to match the OEM part numbers listed above, covering a broad range of popular automotive makes and models. Check your vehicle’s service manual or contact our support team with your VIN for precise compatibility.
Can I install the grommet myself?
Yes. The grommet’s size and flexible rubber material allow for straightforward installation using basic hand tools. Detailed instructions are included, and our customer service can guide you through any step.
Is there a warranty on this product?
Bomunik provides a limited warranty that covers manufacturing defects. If the grommet fails under normal use within the warranty period, we will replace it or issue a refund.
What should I do if the grommet does not fit my valve cover?
Verify the part numbers and engine specifications. If the issue persists, contact our support team with your purchase details, and we will help you find the correct part or arrange a return.
How does Bomunik ensure product quality?
All grommets undergo rigorous process testing, including material durability, temperature resistance, and leak prevention checks, to ensure they meet or exceed industry standards.




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