Engine Covers

What Are Engine Covers and Why Do They Matter?

Engine covers are the panels, shrouds, and decorative shields that sit over the top of your engine bay, hiding the mechanical hardware beneath. While they might seem like a purely cosmetic component, engine covers serve a surprisingly practical set of roles. They reduce engine noise transmitted into the cabin, protect wiring harnesses and sensitive components from dirt and debris, route airflow within tight engine bays, and give the underhood area a finished, factory-correct appearance. Whether you're restoring a classic, repairing a daily driver, or dressing up a performance build, the right engine cover makes a real difference in both function and presentation.

Types of Engine Covers

Engine covers vary widely depending on their design intent. OEM-style replacement covers restore the factory look after damage or cracking and are built to match original specifications exactly. Performance engine cover kits replace dull plastic panels with machined aluminum or composite pieces that enhance airflow management while adding visual flair. Timing covers and belt covers protect critical internal components while sealing oil and coolant passages. Regardless of the application, proper fitment is the single most important factor — a cover that doesn't seat correctly can rattle, allow debris ingress, or disrupt designed airflow paths.

What to Look for When Shopping Engine Covers

• Fitment accuracy: Always verify the cover is designed for your specific year, make, and model. Even minor generational differences can affect mounting points and seal geometry.
• Material: OEM covers are typically molded plastic, while performance-oriented options use aluminum or composite for improved durability and aesthetics.
• Functional design: For turbocharged vehicles, some covers also serve to direct intake airflow. Make sure an aftermarket cover preserves this functionality.
• Finish quality: Powder-coat, anodizing, and textured finishes extend service life and resist engine bay heat and chemicals.

Top Engine Cover Brands

Sherman is a well-established name in OEM-quality replacement parts, with a reputation built on precise fit and factory-correct finishes. Founded in 1981, Sherman has grown into one of the largest suppliers of replacement body and engine components, trusted by both professional restorers and do-it-yourself enthusiasts who demand parts that install cleanly without modification.

PERRIN Performance takes a performance-first approach to engine covers, offering aluminum cover kits engineered specifically for Subaru WRX and related platforms. Their covers are designed to replace the factory plastic panel while preserving — and in some cases improving — the airflow path to the top-mount intercooler, combining underhood style with genuine functional engineering.

Genuine OEM engine covers represent the factory-original option for drivers who want an exact match to the part that came on their vehicle. Genuine covers are built to the precise specifications of the original manufacturer, ensuring correct fit, proper sealing, and compatibility with all factory mounting hardware without any guesswork.