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BMW Engine Parts for BMW 5 Series E34 (1987-1995)

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Bav Auto High-Performance Ignition Coil - M42 M50 M60 S50

10X Entries Into Our F80 M3 Sweepstakes

T#:579674

Part#: 5003

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$ 28.89 USD

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A simple yet effective upgrade, these Bav Auto High-Performance Ignition Coils feature modified core windings that offer increased firepower and promote a faster, more efficient burn. The result is greater low-end torque and increased horsepower in the mid to top-end. When used in a properly functioning engine, a noticeable difference can be felt. In addition to better torque and horsepower, fuel economy is also improved! These coils come with new spark plug boots. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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New Alternator - 140amp | BMW E36 E34 M50 M52 S50 S52

10X Entries Into Our F80 M3 Sweepstakes

T#:25042544

Part#: 12311744567

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05-03-2026

$ 186.99 USD

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$ 186.99 USD

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Crankshaft Position Sensor - E36 (OBDI), E34 M50/S50

10X Entries Into Our F80 M3 Sweepstakes

T#:579816

Part#: 52380

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$ 39.19 USD

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Common cause of misfires, poor fuel economy, or a crank no start situation. If your M50 or S50 has any of these symptoms, this crankshaft position sensor from Bavarian Autosport is a likely fix.

Spark Plug Gapper Tool BMS Billet

T#:26404907

Part#: 12MMSPG

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$ 35.00 USD

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$ 35.00 USD

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Spark Plug Gapper Tool BMS Billet is essential for accurately adjusting the gap of spark plugs. This precision tool ensures that each plug is set to the exact specifications required for optimal engine performance. Made in the USA, it features a 12mm plug thread size, making it suitable for a wide range of applications.

Precision Adjustment: Allows for accurate gap adjustments to ensure optimal spark performance and engine efficiency.
Speed and Efficiency: Streamlines the process of gapping plugs while maintaining high precision, saving time and effort.
High-Quality Construction: Crafted from billet materials for durability and reliability, ensuring long-term use.
Lifetime Replacement Program: Comes with a lifetime replacement guarantee, reflecting confidence in the tool's quality and performance.

Upgrade your spark plug maintenance with the Spark Plug Gapper Tool BMS Billet for a reliable and precise solution.

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Bav Auto Lower Timing Chain Sprocket - M50 M52 M52TU M54 S50 S52 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:17871153

Part#: 11211719984

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$ 51.19 USD

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This lower timing chain sprocket is located behind the crank pulley, directly on the crankshaft.

Timing Chain - Upper

10X Entries Into Our F80 M3 Sweepstakes

T#:17871154

Part#: 11311432177

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$ 22.39 USD

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Upper Timing Chain Tensioner

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T#:599825

Part#: 11311738700

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$ 39.99 USD

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Billet Spark Plug Gapper Tool - 14mm - BMS

T#:583132

Part#: BMSBSPGT14MM

Ships in 7 Business Days

$ 35.00 USD

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$ 35.00 USD

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BMS Billet Spark Plug Gapper Tool - 14mm is an essential tool for achieving accurate and consistent spark plug gapping, ideal for automotive enthusiasts and professional mechanics alike. This precision tool helps maintain optimal plug performance by providing reliable, consistent gaps. Available in both 14mm and 12mm plug thread sizes, this tool is proudly made in the USA to deliver durability and precision.

Precisely gaps spark plugs for enhanced engine performance and efficiency
Speeds up the gapping process while ensuring accuracy and uniformity
Available in two sizes (14mm and 12mm) for a wider range of compatibility
Optional specialty feeler gauge included with 4 blades in thicknesses of .018, .020, .022, and .024
Made in the USA for premium quality and durability

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Bavarian Autosport M50/S50 Exact-Fit Rubber Vanos Line

10X Entries Into Our F80 M3 Sweepstakes

T#:1809127

Part#: 000461LA01-02

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This product was last offered at the strikethrough price on
05-03-2026

$ 51.19 USD

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We have seen so many M50/S50 Vanos line failures at the track that we have to offer you a solution. The factory line is prone to failure due to the OEM hard-line - this rubber line alleviates the issues imposed by the factory design and enables you to worry less about your Vanos system. We trust Bavarian Autosport's Exact-Fit Rubber Vanos lines, are the most economical replacement line for several different applications, and their M50/S50 Vanos line is no exception. Bavarian Autosport's M50/S50 Exact-Fit Rubber Vanos Line offers several benefits over OEM. Not is it they more durable and reliable OEM, but it is also easier to install, and significantly less expensive than the factory BMW Vanos line (11361705532) or other alternatives available on the market. If you're factory Vanos line hasn't failed yet, we still recommend replacing yours with Bavarian Autosport's Exact Fit Rubber Vanos Line M50/S50 to avoid eminent future failure.

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Bav Auto Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M6...

10X Entries Into Our F80 M3 Sweepstakes

T#:639843

Part#: 11617501562

Special Order: No Guaranteed ETA

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05-03-2026

$ 50.99 USD

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An integral part of the emissions system, the PVC valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. Often split from underhood heat and age, this vents excess oil into the engine compartment. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Crankshaft Seal - Front

10X Entries Into Our F80 M3 Sweepstakes

T#:17871152

Part#: 11141275466

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Sale - Save 15% $ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 7.64 USD

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