BMW Engine Parts for BMW E90 M3 S65 4.0L

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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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OEM NGK Spark Plug Set - LKR8AP - E9X M3 S65
OEM NGK Spark Plug Set - LKR8AP - E9X M3 S65
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NGK - Corporate Logo
T#:348135
Part#: 12120032273KT
In Stock
$ 161.99

This product was last offered at the strikethrough price on
09-14-2026

$ 135.99 USD
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$ 135.99 USD
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BMW recommends a spark plug change interval of 37,000 miles for the S65 engine. Replace the spark plugs on your E9X M3 with these OEM NGK spark plugs that are a direct replacement for the factory part # 12120032273.
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OEM Valeo Alternator - 180amp - E9X M3 S65
OEM Valeo Alternator - 180amp - E9X M3 S65
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Valeo - Corporate Logo
T#:377508
Part#: 12317837981
In Stock
$ 630.99

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

$ 404.99 USD
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$ 404.99 USD
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This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!
OEM NGK Spark Plug - LKR8AP - E9x M3, E60 M5, E63 M6
OEM NGK Spark Plug - LKR8AP - E9x M3, E60 M5, E63 M6
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NGK - Corporate Logo
T#:20553
Part#: LKR8AP
In Stock
$ 20.99

This product was last offered at the strikethrough price on
09-14-2026

$ 16.99 USD
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$ 16.99 USD
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BMW recommends a spark plug change interval of 37,000 miles for the S65 and S85 engines. Replace the spark plugs on your E9X M3 and E60 M5 and E63 M6 with these OEM NGK spark plugs that are a direct replacement for the factory part # 12120032273.
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Hitachi Engine Crankshaft Position Sensor - BMW N52 N54 S85 S65 S63
Hitachi Engine Crankshaft Position Sensor - BMW N52 N54 S85 S65 S63 ...
Hitachi - Corporate Logo
T#:48815471
Part#: 13627525015
Ships in 6 Business Days
$ 66.99 USD
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$ 66.99 USD
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The crankshaft position sensor transmits the crankshaft's position to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the crank position sensor.
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