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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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Bosch Fuel Tank Breather Valve - 13907643106
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:18468288
Part#: 13907643106
In Stock
Sale - Save 5% $ 76.99

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

$ 73.14 USD
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$ 76.99

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

$ 73.14 USD
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Common CEL cause on B48/B58/S58. Get your fuel system functioning properly again!
OEM Bosch Oxygen Sensor - Cyl. 1-3 -before catalytic converter - E46 ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:3303
Part#: 11787523434
In Stock
Sale - Save 22% $ 210.65

This product was last offered at the strikethrough price on
05-02-2026

$ 165.00 USD
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Sale - Save 22%
$ 210.65

This product was last offered at the strikethrough price on
05-02-2026

$ 165.00 USD
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This is the pre-cat oxygen sensor for bank 1 - cylinders 1-3 for BMW E46 E60 E83 X3 Bosch # 17 215.

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 325xi with M54 engine.
3/2003-2005 E46 BMW 330i 330ci 330xi
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 3.0i - Automatic Transmission Only
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Kingsborne - Corporate Logo
T#:4021
Part#: 12-7405
In Stock
Sale - Save 9% $ 84.99

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

$ 77.61 USD
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Sale - Save 9%
$ 84.99

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

$ 77.61 USD
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The Turner Motorsport High-Performance Ignition Wire Sets are manufactured to O.E. specifications and with O.E components. All wire sets have genuine BERU connectors, and the highest grade of silicone wire we could find. Short/Long Coil.

This item fits the following BMWs:
1968-1976 2002 BMW 1600 2002 2002tii
1977-1979 E21 BMW 320i
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Bosch Oxygen Sensor - Front
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:384615
Part#: 11787589121
In Stock
Sale - Save 34% $ 197.99

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

$ 131.43 USD
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Sale - Save 34%
$ 197.99

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

$ 131.43 USD
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Fuel control and emissions sensor

Kingsborne - Corporate Logo
T#:4025
Part#: 12-7923-8
In Stock
Sale - Save 36% $ 226.99

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

$ 145.99 USD
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Sale - Save 36%
$ 226.99

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

$ 145.99 USD
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High-Performance spark plug wires, to help deliver a perfect, uninterrupted spark impulse to each cylinder of your BMW's engine. Old wires will impair spark, reduce performance, and cause cylinder misfires. We recommend changing your ignition wires every 50k miles, or as soon as your wires show signs of deteriation.

This item fits the following BMWs:
1992-1995 E36 BMW 318i 318is 318ti 318ic with M42 engine
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Bosch Starter Motor - E32 750il E38 750il E31 850i 850ci
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:1175
Part#: SR444X
In Stock at Vendor
Sale - Save 5% $ 279.99

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

$ 265.75 USD
Sale - Save 5%
$ 279.99

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

$ 265.75 USD

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

This genuine Bosch Starter fits the following BMWs:
1988-1991 E32 7 Series 750il
1995-2001 E38 7 Series 750il
1991-1998 E31 8 Series 850i 850ci

 

Includes $75.00 core charge to be refunded on return of your rebuildable core.

 

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Vargas Turbo Technologies - Corporate Logo
T#:398009
Part#: N55-STG1
Ships in 10 Business Days
Sale - Save 1% $ 1,545.99

This product was last offered at the strikethrough price on
06-15-2026

Starting at $ 1,536.90 USD
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$ 1,545.99

This product was last offered at the strikethrough price on
06-15-2026

Starting at $ 1,536.90 USD
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Vargas Stage 1 N55 turbo upgrade is good up to 425whp with proper tuning and high grade fuel. Vargas N55 turbo is an all-new turbo specially made for Vargas. They build it with a billet compressor wheel of their own design and a stock turbine. It will accept all of the stock water and oil lines and the original diverter valve (upgraded DV is recommended). This kit is a direct bolt-on replacement for the original turbo and necessary if you want to start making big power from the N55.

The stock plastic diverter valve and chargepipe is the weakest point for boost leaks (the plastic cracks). Vargas Turbo recommends upgrading it to a stronger DV design. The aluminum DV designs will hold up to just about any boost level currently available.

Vargas Turbo Technologies has been in business since 1979, offering rebuilt and re-engineered turbo solutions. For the BMW market, they identified a need for both cost-effective turbo replacements and proven turbo upgrades. It's recommended that the rest of the system be upgraded to handle your tuning goals. The final Vargas rebuilt turbos are better than the factory rebuilds and at a lower cost!

Oil Recommendation - modern engine oil is formulated for emissions and to be environmentally friendly. The additives in current oil lowers the oil's ability to withstand high temperatures and stresses, lowering its shear strength and its lubricating properties. Vargas recommends oils with high ZDDP (zinc and phosphorus) content that will better protect and cool the turbo bearings. Examples of high-zinc oils are Red Line Race, Red Line Euro, Motul 300V Racing, Joe Gibbs Racing, Valvoline VR-1 oil, and most Diesel-spec oils that you can buy off-the-shelf. Some oils, especially the Race type, will need more frequent oil changes and may be harmful to catalytic converters.

WHP rating: 425. This rating is used to compare various stage of Vargas turbo kits. There is no advertised horsepower gain with this kit as it depends on your other mods and tuning. The rating is provided as a reference to use in your tuning planning. Custom tuning is recommended to match thIS turbo to your existing mods and upgrades.

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Kingsborne - Corporate Logo
T#:4036
Part#: 12-7757P
In Stock
Sale - Save 9% $ 164.99

This product was last offered at the strikethrough price on
07-15-2026

$ 150.68 USD
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Sale - Save 9%
$ 164.99

This product was last offered at the strikethrough price on
07-15-2026

$ 150.68 USD
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The Kingsborne High-Performance Ignition Wire Sets are manufactured to O.E. specifications and with O.E components. All wire sets have genuine BERU connectors, and the highest grade of silicone wire we could find.

This item fits the following BMWs:
1984-1991 E30 BMW 325i 325ic 325is 325ix
1988 E30 BMW 325e 325es
12/1986-1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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Vargas Turbo Technologies - Corporate Logo
T#:7292057
Part#: VTT-N54-B58-CNV
Ships in 10 Business Days
Sale - Save 5% $ 677.99

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

Starting at $ 641.87 USD
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Sale - Save 5%
$ 677.99

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

Starting at $ 641.87 USD
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VTT is proud to offer its very own N54 to B58 Coil conversion kit for the N54 platform. While factory coil upgrades such as S55, and our own N54 coil upgrades do provide more spark, the BMW B58 ignition coils are extremely robust and can support well over 1000whp with no issues. This means a plug, and play affordable solution that fits like stock, and looks AMAZING doing so! Vargas's 6061-T6 Billet bracket comes in a variety of colors including matching shades for every N54 Valve Cover we offer (even the cast wrinkle). This means you can mix and match the color of the bracket with coil color, with VC color to truly tailor your engine bay to look exactly how you want it to! The kit comes with the following: 1 – Billet Aluminum Coil Bracket in the color of choice or Genuine Carbon Fiber 6 – Plug and play VTT wiring harnesses 6 – Custom VTT stalks to convert the B58 coils to the N54 head (We ensure proper spring length inside the boot for optimal spring to plug contact) 6 – Coils in the color of choice (optional) **Note: This only fits the stock N54 Valve covers or Vargas Billet and Cast Valve Covers.
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Beru - Corporate Logo
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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Vargas Turbo Technologies - Corporate Logo
T#:390443
Part#: VTTS55-SIL-CP
Back Ordered
Starting at $ 399.00 USD
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Starting at $ 399.00 USD
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These extra-strength silicone pipes replace the plastic pipes coming from the turbos to the top-mount intercooler on the M3/M4. Since the stock pipes are plastic there is the potential for cracks and boost leaks which will surely spoil the fun.
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