BMW Engine Parts for BMW 3 Series E46 (1999-2005)

Maintaining optimal engine oil levels is crucial for peak performance in your BMW. Leaks can occur between oil change intervals, leading to dangerously low oil levels. The valve cover is a frequent culprit for such leaks due to gasket degradation from years of exposure to temperature fluctuations. Replace your valve cover to ensure the retention of engine oil within your vehicle.

Key benefits of replacing the valve cover include:

• Preventing oil leaks that could lead to low oil levels.
• Preserving engine performance and longevity.
• Avoiding potential engine damage from insufficient oil.

Ensure your BMW's engine operates smoothly by replacing the valve cover to contain the engine oil effectively.

This is an OEM INA tensioner pulley, also known as the adjusting pulley and lower pulley. This pulley is mounted on the belt tensioner near the center of the belt assembly. The upper and lower pulleys are known to be the primary sources for 'belt squealing'. This pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).

This pulley is mounted along with the hydraulic belt tensioner but can be replaced on its own. It is used for the main drive belt on the M50-M54 family engines (M50, M50TU, M52, S52, M52TU, M54, M56, and S54 engines). This is the same belt that covers the water pump/alternator/power steering systems. Replacement is a very easy procedure (requires fan removal) and will have your engine purring in no time. Belt replacement is strongly recommended at the same time. If you have a mechanical belt tensioner, the pulley can only be replaced with a new tensioner.

OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

If you need the hydraulic belt tensioner, click here.

This item is 70mm Diameter. Please check the diameter before ordering.

This tensioner pulley fits the following BMWs:
1991-1995 E34 525i (M50 engine)
1992-1999 E36 325i, 325is, 328i, 328is, 323is
1995-1999 E36 M3 (M3 3.0 & M3 3.2 liter)
1997-2003 E39 525i, 528i, 530i - Only for Hydraulic Tensioner
1999-2000 E46 323i, 323Ci, 328i, 328Ci - Only for Hydraulic Tensioner
2001-2005 E46 325i, 325Ci, 325xi, 330i, 330Ci, 330xi - Only for Hydraulic Tensioner
2001-2006 E46 M3 coupe & convertible - Only for Hydraulic Tensioner
2000-2006 X5 3.0 liter (E53 chassis)
2004 E60 525i, 530i (M54 engine)
1997-2002 Z3 & MZ3 2.5, 2.8, 3.0, M Roadster, M Coupe
2003-2009 Z4 M Coupe and Roadster

Turner Motorsport BMW Timing Chain Tensioner Replacement

Introducing the BMW Timing Chain Tensioner Replacement by Turner Motorsport, a vital component to maintain optimal tension and prevent timing chain issues. Engineered for reliability, this replacement ensures the proper functioning of your cam gears and crank, preventing potential engine damage.

Benefits:

• Crucial for timing chain tension
• Prevents chain skipping
• Safeguards against catastrophic engine damage
• Quiets noisy chains for a smoother engine operation

Replace your BMW's timing chain tensioner with this Turner Motorsport solution to keep your engine running smoothly.

Elring Valve Cover Gasket Set – BMW P# 11129070990
Includes Outer Valve Cover Gasket, Spark Plug Tube Gaskets, and Cap Nut Grommets

Maintain proper engine sealing and eliminate common valve cover oil leaks with this complete Elring gasket set, trusted by professionals and enthusiasts alike. Designed for a precise fit on BMW engines, this kit includes everything needed for a comprehensive valve cover reseal:

Outer Valve Cover Gasket – Provides a tight seal between the cylinder head and valve cover

4 Spark Plug Tube Gaskets – Prevent oil from entering the spark plug wells and affecting ignition performance

15 Cap Nut Grommets – Replace worn grommets to restore proper bolt sealing and prevent oil seepage

Elring is a globally respected OE supplier, known for manufacturing gaskets that meet or exceed BMW’s factory specifications. Whether you're doing routine maintenance or addressing a visible oil leak, this kit ensures long-lasting results with no guesswork or missing pieces.

Fitment – Engineered for a direct replacement and worry-free installation on select BMW models.

Pro Tip: Always inspect the valve cover for cracks or warping before reinstalling. A clean sealing surface is critical for leak-free performance.

If there is a large amount of oil on the sides of the engine or if you can smell burning oil, chances are it's a bad valve cover gasket. The gasket fails and allows oil to seep down onto the side of the engine and other parts causing a mess and reducing the amount of oil in your engine. This replacement gasket from Elring is perfect to prevent any further oil leaks.

Includes the following Seals:

• Valve cover gasket
• Spark plug seals

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
M52 2.5L 2.8L (09/1998+)
M54 2.5L 3.0L  (up to 09/2002)

High-Quality Valve Cover Replacement for BMW Vehicles

Ensure peak engine performance with this specially designed valve cover replacement crafted for BMW vehicles. Engineered to prevent oil leaks and maintain optimal oil levels between intervals, this valve cover is an indispensable safeguard for your engine.

• Prevents oil leaks and maintains optimal oil levels
• Durable materials ensure reliable protection against gasket degradation
• Safeguards the engine from potential damage due to oil leaks

Don't compromise on engine health. Replace your valve cover today to keep your BMW running smoothly and efficiently.

The head gasket is exposed to high pressure and heat for extremely long periods of time. Over a long period of time, these may develop a slight oil leak and must be replaced ASAP to prevent damage to the engine. It should also be replaced any time that the engine head is removed to ensure the best seal possible.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
M52 2.5L 2.8L, M54 2.5L 3.0L

If there is a large amount of oil on the sides of the engine or if you can smell burning oil, chances are it's a bad valve cover gasket. The gasket fails and allows oil to seep down onto the side of the engine and other parts causing a mess and reducing the amount of oil in your engine. This replacement gasket from Elring is perfect to prevent any further oil leaks.

Includes everything needed to re-seal your engine's head.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following engines:
M54 2.5L 3.0L (09/2002+)

BMW M54 Main Bearing Performance Set is engineered to meet the rigorous demands of high-performance engine builds. Designed by Turner Motorsport, these high-performance coated main bearings offer enhanced durability and efficiency for engines subjected to extreme conditions.

• High-Performance Coating: Treated with a specialized coating by Calico, these bearings reduce friction and prevent "spinning" under high stress, making them ideal for high-power applications.
• Enhanced Power Generation: The coating allows the engine to generate more power while maintaining reliability, even under demanding conditions.
• Thermal Resistance: Built to withstand high temperatures and perform effectively in forced induction and race applications, these bearings help prevent engine failure due to oil pressure loss.
• Proven Durability: Tested extensively on and off the track, 5150 bearings are known for their longevity and superior performance compared to other bearings on the market.

Upgrade to the BMW M54 Main Bearing Performance Set from Turner Motorsport for a robust solution that enhances engine reliability and performance.