BMW Engine Parts for BMW 3 Series E90 (2006-2011)

If you own an M57-equipped BMW, you already know this twin-turbo diesel powerplant is an absolute torque monster. What you might also know is that all that low-end grunt and high-compression diesel vibration wreaks absolute havoc on your accessory drive system.

From the factory, both the E90 335d and E70 X5 35d utilize a rigid alternator pulley. With each cylinder's fire, the crankshaft experiences a violent micro-acceleration. Because the alternator has a heavy internal rotor spinning at high speeds, it wants to keep spinning at a constant rate. When the engine suddenly slows down (even minutely between firing cycles), the alternator fights the belt. This constant tug-of-war results in extreme stress on your engine's belt-driven components. At best, it’s an annoying, unrefined chirp at idle; at worst, it’s a ticking time bomb for your expensive harmonic balancer.

To solve this issue, many enthusiasts choose to run a clutched alternator pulley (also called an overrunning alternator pulley). A clutched pulley allows the alternator to "freewheel" or coast when the engine slows down, completely isolating its rotational inertia from the belt drive to prevent component wear. While the N52's clutched pulley (12317560483) is a straight bolt-on, the offset is incorrect for the E90 335d's accessory drive. Thankfully, our engineers designed this zinc-coated spacer to provide the precise amount of spacing needed to perfectly align the new pulley with existing belt drive components.

Boost your engine's capabilities with the Dinan N-Series Performance Ignition Coils - a vivid set of six in striking red. Precision-engineered to amplify ignition power, these coils guarantee heightened throttle response, seamless idling, and a notable surge in overall power. Meticulously crafted for durability, they seamlessly integrate into your vehicle, enhancing both performance and aesthetic appeal under the hood.

BMW S65 BE Bearings Connecting Rod Bearing Upgrade Set is designed to address the known flaws in the factory BMW rod bearings, particularly for the S65B40 engine. Manufactured by Clevite to BE Bearing specifications, this set provides a crucial upgrade with its enhanced materials and design, ensuring improved performance and durability.

The original BMW bearings have minimal clearance, which leads to premature wear and potential engine failure. This upgrade replaces the tin-aluminum factory bearings with a superior silver-oxide-coated tri-metal "F" series design. The new bearings can handle 30% more load, offer better performance in low oil conditions, and are more forgiving of foreign particles in the oil. Designed specifically for BMW S65 engines, these bearings provide optimal performance for high-horsepower applications.

• Designed specifically for BMW S65B40 engines
• Silver-oxide coating withstands 30% more load capacity
• Improved performance under low-oil and boundary conditions
• Stronger backing material for enhanced durability
• Corrects factory BMW rod bearing clearance issue
• Ideal for high-horsepower applications and factory 10W60 weight oils
• Complete set for 8 cylinders, ready for installation

Fits the following BMWs:

• 2008-2013 E9X BMW M3 (S65)

BMW S65 4.0L Vanos Covers 7075 provide a robust replacement for the factory plastic covers, which are known to fail over time. These high-performance Vanos covers snap on securely, offering a precise fit to eliminate vibration and prevent chafing of the engagement dogs.

• High-Strength Construction: Machined from premium 7075 aluminum for superior durability and strength.
• Corrosion Resistance: Anodized finish ensures long-lasting protection against corrosion.
• Perfect Fitment: Designed for an exact fit to avoid issues such as vibration and chafing.
• No Timing Tools Required: Easy installation with no need for engine timing tools.

Introducing the BMW N52, N54, N55, and S55 Race Series High-Performance Con Rod Bearing Set by Automotive Components Limited. Elevate your BMW's performance with these precision-engineered con rod bearings, specifically designed for performance BMW engines.

Key Features:

Premium Quality: Crafted with the utmost precision and durability, this con rod bearing set ensures high performance and reliability for your BMW. Race Series Design: Engineered to meet the demands of race applications, these bearings are well-suited for high-performance driving scenarios. Enhanced Engine Protection: The bearings provide essential protection for your engine components, ensuring their longevity even under extreme conditions. Perfect Fit: Designed to seamlessly fit BMW N52, N54, N55, and S55 engines found in many newer BMWs, these bearings are a direct replacement for your stock components. Improved Performance: Experience enhanced engine performance and responsiveness, making it ideal for racing and high-performance driving. Upgrade your BMW with the Race Series High-Performance Con Rod Bearing Set from Automotive Components Limited. Enhance your vehicle's performance and enjoy peace of mind knowing your engine is protected by top-quality components.

BMW N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - 0.25mm Oversized provides an exceptional upgrade for enhancing engine performance and reliability. Crafted by King, these bearings are engineered to withstand the rigorous demands of high-performance driving.

• Premium Quality Construction: Made from lead-free, silver-based tri-metal material, offering superior durability and load-bearing capabilities.
• 0.25mm Oversized Design: Features an oversized specification to accommodate slight engine wear and ensure a precise fit for optimal performance.
• Enhanced Engine Stability: Provides exceptional support and stability to the connecting rods, reducing wear and extending engine life.
• Precision Engineering: Designed to meet exacting standards, ensuring perfect compatibility with BMW N20, N52, N54, and N55 engines.
• Improved Engine Operation: Delivers smoother and more efficient engine performance, enhancing the overall driving experience.

Turner Motorsport's BMW N20 N52 N54 N55 Connecting Rod Bearing Set of 2 Pairs - 0.25mm Oversized is ideal for those seeking high-quality components to boost engine reliability and performance.

BMW B46 B48 Motiv ReFlex Plug-n-Play Ethanol Sensor Harness simplifies the integration of an ethanol content sensor into your BMW's Re|Flex system. This harness is designed to enhance your vehicle's performance by scaling the sequential port injection based on real-time ethanol content, eliminating the need for manual adjustments. Key benefits include:

• Effortless Installation: Plug-n-play design makes it easy to connect an ethanol content sensor without extensive modifications.
• Real-Time Adjustments: Allows for automatic scaling of port injection based on real-time ethanol content, optimizing engine performance.
• Seamless Integration: For CANbus integrated vehicles, it facilitates integration with the factory DME/ECU (pending feature release by tuning platforms).
• No Manual Flashes Required: Removes the need for ground disconnection or map switching on your port injection controller.

Please note that the ethanol sensor is not included with this harness.

Elevate your custom installation with the ECS -10AN O-Ring Boss fitting, a crucial component that connects your ECS Tuning Catch Can to a 3/4" ID hose. This fitting simplifies your plumbing setup, ensuring a seamless solution.

Featuring a pre-installed Viton O-ring, this fitting is engineered for excellence, providing a leak-proof seal that resists the effects of oil and fuel exposure, guaranteeing long-term durability.

The 3/4" nipple is thoughtfully designed with barbs to secure hose position effectively, minimizing the risk of hose disconnection. Keep in mind that clamps and hoses are available for separate purchase. These fittings are sold individually, with most installations requiring a pair of them.

The N54 suffers from a weak point in its crankshaft. It has been reported that when increasing the power to the engine, the crank hub can move or spin slightly under an extreme load. This is most apparent under high-rev downshifts or in the case of increased boost pressure which creates more stress on the engines rotating assembly. In order to keep this from happening, the crank bolt must be secured to the hub to keep it from backing off, but this can be a tricky solution since a simple dab of Loctite will not suffice. 

Here is an easy, and cost-effective way to secure the situation; The VTT N54 crank bolt capture. This lightweight and durable ring slips over the head of the crank bolt fully encapsulating it, and locks it to the crank hub and eliminating its ability to spin. The VTT-CBC is 100% Billet Aircraft Grade Aluminum, Anodized black to protect it from the elements, and give it a stealth look. What's more is that it weighs only 1.3 Oz's meaning you aren't adding excess mass to the crankshaft which will avoid any imbalance or vibration issues.

While this is not a full fix for all crank hub spinning issues, the engineers at Vargas have found most issues have stemmed from the bolt itself backing out, and this is a great way to keep that from happening. Extremely lightweight at only 1.3 Oz's it adds virtually no weight to the crank which is important for balance and vibration.

Kit Includes:

• 1x Aluminum Crank Bolt Capture
• 8x Fasteners Gr. 12.9

This part fits the following BMWs:
2006-2013 N54