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BMW Engine Parts

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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Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70

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T#:1196078

Part#: 12318510090

Ships in 1 Business Day

$ 91.37 USD

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$ 91.37 USD

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OEM replacement for you BMW alternator fixing charging issues

Voltage Regulator

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T#:594108

Part#: 12317603775

Ships in 1 Business Day

$ 71.22

This product was last offered at the strikethrough price on
05-04-2026

$ 70.45 USD

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$ 70.45 USD

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Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

Ignition Coil Pack - R50 / R52 / R53

T#:23383348

Part#: 12137510738

Ships in 3 Business Days

$ 75.02 USD

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$ 75.02 USD

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Is your Mini experiencing sluggish acceleration or misfires? It might be time to check the coil pack. The coil pack plays a crucial role in the ignition system and can affect engine performance. Replace it as necessary or ideally every 100,000 miles to keep your Mini's ignition system operating smoothly.

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Alternator

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T#:594101

Part#: 12318570672

In Stock at Vendor

$ 1,094.99

This product was last offered at the strikethrough price on
05-07-2026

$ 1,062.99 USD

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$ 1,062.99 USD

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Replacement Alternator from Valeo

Spark Plugs - Set Of Six

T#:14982199

Part#: 121200405516KT

Back Ordered

$ 95.99 USD

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$ 95.99 USD

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Voltage Regulator

T#:596879

Part#: 12321350052

In Stock at Vendor

$ 41.99

This product was last offered at the strikethrough price on
05-07-2026

$ 40.99 USD

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$ 40.99 USD

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If you are having issues with voltage peaking, lights fading in and out as your driving, or your battery keeps dying despite the car running, It could be the result of a faulty voltage regulator. Voltage regulators control the amount of power coming from the alternator.

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Spark Plug High Power - Priced Each

T#:591248

Part#: 12122158165

In Stock

$ 26.56 USD

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$ 26.56 USD

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Power Pulley DPK Belt Kit

For vehicles with production date from 6/2008

T#:50934275

Part#: 13-001D

Ships in 3 Business Days

$ 75.00 USD

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$ 75.00 USD

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Free Up Real S65 Power — Engineered the Turner Way Your S65 is already making the power. This kit simply lets you keep more of it. The Active Autowerke Power Pulley Kit for the BMW E9X M3 reduces parasitic drag at the crankshaft, trimming rotational mass and freeing up horsepower that would otherwise be consumed by accessory drive load. The result is a measurable increase in rear-wheel output without sacrificing the balance, cooling capacity, or long-term durability expected from a properly engineered BMW upgrade. The crank pulley is CNC-machined from billet 6061 aluminum and finished with a hard-coat anodize for durability under sustained high-RPM operation. Unlike undersized pulleys that compromise system function, this design maintains proper operating characteristics while delivering real-world gains. Late-2007 production E9X M3 models transitioned to a double-sided (DPK) A/C belt configuration. Rather than forcing a workaround, Active Autowerke developed a proper DPK-compatible solution — including the correct matched belt. Applicable kits also include a spare DPK belt for added insurance. Dyno testing on a Mustang chassis dyno confirms gains of 10–12+ rear-wheel horsepower on an otherwise stock vehicle. Installation is fully reversible and requires no permanent modification. Product Highlights 10–12+ RWHP gain verified on stock S65 engines Complete bolt-on system CNC-machined 6061 billet aluminum crank pulley Hard-coat anodized finish for durability Includes correct replacement drive and A/C belts Spare DPK belt included where applicable Compatible with manual and DCT-equipped E9X M3 Reduces parasitic drag and rotational mass Designed to maintain proper operating temperatures Works in conjunction with Active Autowerke performance software Available for single-sided and double-sided (DPK) belt configurations Fitment Information Confirm whether your E9X M3 is equipped with a single-sided or double-sided (DPK) A/C belt prior to ordering to ensure correct application. A properly engineered solution for enthusiasts who want measurable gains while preserving OEM-level refinement and reliability.

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MINI Ignition Lead Retrofit Kit B - 82110404488

T#:168056

Part#: 82110404488

Ships in 1-2 days

$ 79.48 USD

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$ 79.48 USD

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Revitalize your Mini's performance with Beru MINI Cooper Spark Plug Wires, designed to restore power and ensure optimal engine function. Recommended for replacement at 60,000-mile intervals, these wires play a crucial role in maintaining ignition efficiency. If you're experiencing low spark or misfires and have ruled out issues with the coil or spark plugs, faulty spark plug wires could be the culprit. Keep your Mini running smoothly by replacing worn-out wires that may have developed rust on the connections. With this wire set, enjoy happy motoring and consistent spark across all cylinders. Beru MINI Cooper Spark Plug Wires provide the reliability and quality your Mini deserves.

Restores power and performance
Recommended replacement at 60,000-mile intervals
Addresses issues like low spark or misfires
Prevents rust buildup for consistent ignition
Includes plug wires for cylinders 1 - 4
Ensures happy motoring and great spark

MINI IGNITION LEAD RETROFIT KIT B

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M50/M52/M54 Beru Racing Spark Plug

T#:338884

Part#: FGR-6DDU

Back Ordered

Sale - Save 17% $ 23.99

This product was last offered at the strikethrough price on
05-14-2026

Starting at $ 20.00 USD

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Sale - Save 17%

$ 23.99

This product was last offered at the strikethrough price on
05-14-2026

Starting at $ 20.00 USD

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RACING SPARK PLUG FOR M50/M52/M54 ENGINES
These spark plugs are recommended by BMW Motorsport for use in their DTC racing engines. We find a slight horsepower increase and greatly increased durability over the OEM road car spark plugs in competition use. We attribute the improvements to the fact that these spark plugs are designed for the high temperatures and cylinder pressures encountered in a racing engine. These spark plugs are a direct replacement and come pre-gapped just like the factory road car plugs.
Please note: these plugs are not for the S54 engine in the E46 M3, MZ3, or Z4 M

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Remanufactured Alternator - 170A

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T#:594098

Part#: 12317802929

Ships on Aug 7, 2026

$ 323.99 USD

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$ 323.99 USD

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Replacement Alternator from Valeo

MINI N14 N18 Alternator - 120 Amp 439617

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T#:28803228

Part#: 12317619254

In Stock

$ 374.99 USD

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$ 374.99 USD

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MINI N14 N18 Alternator is an essential component for powering the electrical system of your Mini. Engineered to provide reliable performance, this alternator ensures your Mini stays running smoothly. Upgrade your Mini with this genuine alternator for dependable power generation.

Powers the electrical system
Reliable performance
Ensures smooth operation
Genuine Mini part

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HJS Oil Filter Housing Mount - E39

T#:556831

Part#: 11421407441

Ships on Aug 7, 2026

$ 17.99 USD

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$ 17.99 USD

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2 required per car

Spark Plug Boot - Priced Each

T#:596875

Part#: 12131730412

Back Ordered

$ 15.99 USD

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$ 15.99 USD

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Sometimes a bad coil may just be a broken or damaged connector boot. This is especially true on cars with a leaking valve cover gasket where the oil has contamintated the rubber boot and the electrical parts inside. This boot can be replaced on its own without having to buy a whole new coil. This part is also useful if you purchased a coil that did not come with a new boot.

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Spark Plug - Priced Each

T#:637736

Part#: 12120040551

Back Ordered

$ 15.99 USD

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$ 15.99 USD

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Alternator

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T#:594102

Part#: 12311247288

Back Ordered

$ 547.99

This product was last offered at the strikethrough price on
05-08-2026

$ 532.99 USD

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$ 532.99 USD

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Replacement Alternator from Valeo

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