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

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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 Starter Motor - E46 M3 2001-2006
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Valeo - Corporate Logo
T#:2988
Part#: 12417835735
Ships in 1 Business Day
$ 389.99 USD
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$ 389.99 USD
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This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe
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E46 M3, MZ3 S54 OEM Valeo Alternator (New)
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Valeo - Corporate Logo
T#:377735
Part#: 12317831436
In Stock at Vendor
$ 522.00

This product was last offered at the strikethrough price on
07-16-2026

$ 473.99 USD
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$ 473.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

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Valeo - Corporate Logo
T#:371896
Part#: 12317501599
Ships on Dec 7, 2026
$ 323.99 USD
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$ 323.99 USD
Free Shipping

The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

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!

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Meistersatz - Corporate Logo
T#:360224
Part#: 11421719855
Ships in 2 Business Days
$ 5.99 USD
Free Shipping on orders $49 and up
This is the replacement for the troublesome oil filter profile gasket on the M50, S50US, M52, S52, M52TU, M54, and S54 engines. The housing is separate from the engine block and in between there is this small profile gasket. The gasket shrinks over time which allows oil to seep out. In our own service shop, it's one of the most common service jobs we perform. 

One of the other common leak points is the VAN0S oil line and its seals. Since the line comes out with the oil filter housing anyway you might as well replace the line itself or at least the seals. 

On S54 engines (E46 M3, MZ3, Z4 M) there is a flanged head bolt going into the cylinder head, behind the thermostat cover. This holds the left side timing chain guide rail in place and if it's loose or falls out you could have a very serious engine failure to deal with. Make sure to check this bolt while you're replacing the oil filter housing seal. You only need to make sure it's tight. But if it's come loose you may want to replace the seal ring and use a small touch of oil-resistant thread sealer. 
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Meistersatz Cylinder Head Bolt Kit - E34, E36, E39, Z3
For vehicles with production date up to 09/1998
Meistersatz - Corporate Logo
T#:1195780
Part#: 11121721938
Ships in 3 Business Days
$ 19.99 USD
Free Shipping on orders $49 and up
$ 19.99 USD
Free Shipping on orders $49 and up
Set of 14 stretch bolts for installing cylinder head
Meistersatz - Corporate Logo
T#:57580040
Part#: 11127832034
Ships in 3 Business Days
New Item
$ 162.99 USD
Free Shipping on orders $49 and up
Tackle cylinder head service head-on and safeguard your engine’s performance with complete confidence using this valve stem seal kit from Meistersatz.

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
11-07-2026

Starting at $ 20.00 USD
Free Shipping on orders $49 and up
Sale - Save 17%
$ 23.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 20.00 USD
Free Shipping on orders $49 and up
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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Beru - Corporate Logo
T#:596875
Part#: 12131730412
Back Ordered
$ 15.99 USD
Free Shipping on orders $49 and up
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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