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BMW
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Valve Cover Assembly
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Over time, the factory valve cover hardware on M50, M50TU, M52, M52TU, M54, S50 (US), and S52 engines is subjected to continuous heat cycling, oil vapor, and moisture, causing original cap nuts to oxidize, corrode, or thread-strip during routine maintenance. Our Polished Valve Cover Cap Nut serves as a direct replacement designed to address these common failure points while improving upon overall engine bay aesthetics.
Because maintaining precise gasket compression is critical to preventing oil leaks, these cap nuts and washers are machined directly to OE-style dimensions. This exact fitment allows for direct compatibility with original and replacement valve cover studs (see T#55317643) and ensures the hardware can be torqued precisely to OEM specifications without guesswork. Manufactured to grade 8.8 structural strength standards, the hardware maintains the necessary clamp force required under normal and high-performance engine operating conditions.
To resist corrosion, both the cap nut and washer undergo an electroless nickel plating process during production. Unlike standard zinc coatings that dull or rust over time, electroless nickel provides a uniform layer of corrosion resistance that withstands long-term chemical exposure and extreme temperature swings while giving the hardware a polished, high-end appearance. Each cap nut assembly includes an OE rubber washer seal, ensuring a tight, leak-free barrier that prevents oil from escaping through the mounting studs.
BMW Valve Cover - N55 3.0L is a high-quality direct replacement designed to restore the reliability and performance of BMW’s turbocharged N55 engine. Manufactured by URO Parts, this valve cover meets strict ISO 9000 certification standards, ensuring durability and precise fitment. Engineered to prevent common issues such as oil leaks and vacuum loss, it is an essential component for maintaining engine efficiency.
Ensure peak engine performance and reliability by replacing a worn or cracked valve cover with this premium-quality URO Parts component.
The URO Valve Cover - BMW F2X F3X N20 2.0L Engine offers an affordable aftermarket solution for replacing your leaky or cracked valve cover. This high-quality replacement part ensures a secure seal, preventing oil leaks and engine damage. The kit includes all necessary components, including the Valve Cover Gasket Set, Valve Cover Bolts, Ball Pin, Damping Elements, and Shaft Seal, making installation quick and easy. Restore your engine's performance and maintain the integrity of your BMW’s valve cover system with this complete replacement kit.
Cracked valve covers can create troublesome vacuum leaks and allow leaking oil to damage engine components. If your valve cover is damaged or leaking, replace it to fix engine fault codes and restore peak operation.
URO Parts offers more than 8,000 high-quality spare parts, many of which are specifically designed to replace factory BMW components. Their business was founded on the premise of producing parts that adhere to the highest standards of precision, materials, and workmanship. Each part is closely evaluated by a team of industry professionals to determine how to offer the best blend of durability, function, and price. If you're looking for quality replacement components at a reasonable price, look no further than URO Parts.
This product was last offered at the strikethrough price on
05-07-2026