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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.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-02-2026
Replace your cracked or warped valve cover with an OE BMW valve cover for perfect fitment.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
Genuine BMW Cylinder Head Cover - Cyl. 1-4
This item fits the following BMW Chassis:
E53 48IS,E53 X5,E63,E65,E70 X5 X5
Fits BMW Engines including:
N62,N62N
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
Protect your Mini Cooper’s ignition coils and wiring from extreme engine heat with this direct-fit N14 ignition coil heat shield. Made from 18-gauge 304 stainless steel, it offers superior heat resistance, deflecting and dissipating damaging heat to extend the life of your ignition system.
This easy bolt-on upgrade installs using factory mounting points, no cutting or modifications required, and works with both plastic and metal valve covers. Its durable brushed finish provides long-lasting protection while keeping your engine bay looking sharp under high-heat conditions.
Upgrade your Mini’s ignition system today with this premium heat shield, engineered for performance, reliability, and effortless installation.
Design:
18-gauge 304 Stainless Steel
Specifically designed for the N14 engine for maximum coverage and heat shielding
Works with both plastic and metal valve covers
Utilizes the factory mounting stud found on the valve cover and the factory grommet found on the factory engine cover
Includes:
N14 Ignition Coil Heat Shield
Machined Mounting Standoffs
Heat Shield Grommet
Valve Cover Mounting Stud
Complete Installation Hardware
Product Development:
Engineered, tested, and quality inspected in-house by the ECS Tuning Research & Development team. Developed with FARO laser scanning, SolidWorks 3D CAD modeling, rapid prototyping, and rigorous long-term testing to ensure precise fitment, durability, and performance that meet ECS’s exacting standards.
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
Protect your Mini Cooper’s ignition coils and wiring from extreme engine heat with this direct-fit N18 ignition coil heat shield. Made from 18-gauge 304 stainless steel, it offers superior heat resistance, deflecting and dissipating damaging heat to extend the life of your ignition system.
This easy bolt-on upgrade installs using factory mounting points, no cutting or modifications required, and works with both plastic and metal valve covers. Its durable brushed finish provides long-lasting protection while keeping your engine bay looking sharp under high-heat conditions.
Upgrade your Mini’s ignition system today with this premium heat shield, engineered for performance, reliability, and effortless installation.
Design:
18-gauge 304 Stainless Steel
Specifically designed for the N18 engine for maximum coverage and heat shielding
Works with both plastic and metal valve covers
Utilizes the factory mounting stud found on the valve cover and the factory grommet found on the factory engine cover
Includes:
N18 Ignition Coil Heat Shield
Machined Mounting Standoffs
Heat Shield Grommet
Valve Cover Mounting Stud
Complete Installation Hardware
Product Development:
Engineered, tested, and quality inspected in-house by the ECS Tuning Research & Development team. Developed with FARO laser scanning, SolidWorks 3D CAD modeling, rapid prototyping, and rigorous long-term testing to ensure precise fitment, durability, and performance that meet ECS’s exacting standards.
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
05-15-2026
This product was last offered at the strikethrough price on
05-15-2026
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-15-2026
