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

Bav Auto High-Performance Ignition Coil - N20 N52 N54 N55 S55 ...

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T#:578618

Part#: 5005

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$ 20.99 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.

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Bav Auto High-Performance Ignition Coil - M62 M73 M52 M54 S52 S62 ...

For vehicles with production date up to 09/2002

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T#:579671

Part#: 5002

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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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High-Performance Ignition Coil - Set Of 6

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T#:36337177

Part#: B50056KT

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$ 125.96 USD

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Enhance your BMW's performance with the upgraded BAV Ignition Coil, designed to boost firepower and optimize engine efficiency. These coils boast modified core windings for a faster, more efficient burn, resulting in increased torque at lower RPMs and heightened horsepower in the upper range. While improvements depend on your engine's condition, these coils ensure noticeable enhancements in performance and potential fuel economy benefits.

Product Benefits:

Improved engine firepower and efficiency
Increased torque at lower RPMs
Enhanced horsepower in higher ranges
Potential improvement in fuel economy
Set of six for complete BMW Cooper replacement

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New Alternator - 120A

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T#:25042543

Part#: 12317501690

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$ 169.59 USD

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

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T#:17871153

Part#: 11211719984

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$ 44.79 USD

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

Upper Timing Chain Tensioner

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T#:599825

Part#: 11311738700

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$ 34.99 USD

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Bav Auto Ignition Coil - N20 N52 N55 N54 N62 S55

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T#:578619

Part#: 12137571643A

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$ 26.59 USD

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Restores your engines smooth operation with new ignition coils from Bav Auto! Boot included with coil. Same as 12131712219, 12130148594, 12130390064, 12137594938, 12137551049, 12137562744, 12137571643, 12138647689, 12137594937, 12137571643. 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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Bav Auto Variable Engine Timing Solenoid Switch - BMW E39 E46 E53 E83...

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Requires use of open-ended wrench for installation - does not fit BMW specific socket tool

T#:599824

Part#: 11361432532

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$ 65.79 USD

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This solenoid works with the VANOS engine timing system to improve horsepower and torque throughout the RPM range. 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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Alternator - 120amp

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T#:25042542

Part#: 12317831436

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$ 167.24 USD

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Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54

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T#:640207

Part#: 11617501566

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$ 23.09 USD

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BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace this and all the other components of the oil separator system to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable. 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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Bavarian Autosport M52/M54/S52 Exact-Fit Rubber Vanos Line

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T#:1105923

Part#: 000932LA01-02

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$ 62.69 USD

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We have seen so many M52/M54/S52 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 ECS Tuning's Exact-Fit Stainless Steel lines for several different applications, and their M52/M54/S52 Vanos line is no exception. Bavarian Autosport's M52/M54/S52 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 Autorsport's Exact Fit Rubber Vanos Line M52/M54/S52 to avoid eminent future failure.

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Bavarian Autosport Valve Cover Assembly - BMW M54 2.5L and 3.0L ...

For vehicles with production date from 09/2002

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T#:638092

Part#: 11127512839

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$ 187.19 USD

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Direct replacement for cracked, leaky, warped, or otherwise failing plastic valve covers. Fits a variety of vehicles, including E39, E46, E53, E60, E83, and Z4 chassis' equipped with the M54 engine.

Active Autowerke Rotrex Traction Fluid - 1 Liter

T#:57616348

Part#: RTF-1L

Ships in 3 Business Days

7% off MSRP $ 140.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD

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$ 140.00

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$ 130.00 USD

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Rotrex superchargers utilize a unique traction drive system that sets it apart from other centrifugal-style superchargers. For best performance, Rotrex recommends replacing this fluid every 50,000 miles. This bottle of traction fluid is plenty enough for one supercharger service (typically 750ml).

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Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 272 Degree, 12.5m...

T#:338215

Part#: TMS11749

Ships on Dec 18, 2026

Sale - Save 29% $ 3,042.99

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Starting at $ 2,165.97 USD

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E46 M3 Schrick 272 Degree Exhaust Camshaft with 12.5mm valve lift. New rocker arms are required (BMW part #11337833259 or a new Schrick part).

BMW Schrick Technical Specs

Schrick Technical Information / Specs

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe

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Oil Separator Hose - E46, Z4

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T#:579880

Part#: 55080

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$ 17.49 USD

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Cold climate version for extra insulation! Fits all E46 and Z4 chassis equipped with an M54 engine.

Timing Chain - Upper

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T#:17871154

Part#: 11311432177

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$ 19.59 USD

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Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3

For vehicles with production date from 01/2000

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T#:638072

Part#: 11617504536

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$ 18.89 USD

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This is the BMW crankcase return line that goes from the intake manifold to the top CCV connecting hose. 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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Oil Pump Chain

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T#:17871159

Part#: 11411401399

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$ 12.59 USD

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Bav Auto Upper Oil Separator Vent Tube - E36 E46 E60 E84 Z3 Z4 M54 M5...

For vehicles with production date from 01/2000

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T#:640502

Part#: 11617504535

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$ 17.49 USD

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Runs from the top of the oil separator up to rear of the intake manifold. 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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Schrick Intake Camshaft - E46 M3, MZ3, MZ4 (S54) - 288 Degree, 12.5mm...

T#:338222

Part#: TMS3572

Ships on Mar 4, 2027

Sale - Save 63% $ 5,600.99

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Starting at $ 2,068.04 USD

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E46 M3 Schrick 288 Degree Intake Camshaft with 12.5mm valve lift. Originally desinged for the M3 CSL but works great in a standard M3. A new rocker arm is required (Schrick or new BMW part #11337833259). This is a more agressive cam that the Schrick 280 degree cam that we also offer for the E46M3

BMW Schrick Technical Specs

Schrick Technical Information / Specs

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe

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M9 X 1.25 BMW 328 E46 Rod Bolt Kit

T#:54139644

Part#: 301-6022

Ships on Dec 1, 2026

20% off MSRP $ 19.99

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$ 15.99 USD

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$ 19.99

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$ 15.99 USD

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Engineered from proprietary ARP2000® alloy, these M9 x 1.25 fasteners provide the massive clamping force needed to keep the rod journals perfectly round and seated, even when bouncing off the rev limiter lap after lap.

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Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 296 Degree, 14.0m...

T#:338219

Part#: TMS201492

Ships on Mar 4, 2027

Sale - Save 45% $ 7,065.99

This product was last offered at the strikethrough price on
07-08-2026

Starting at $ 3,897.86 USD

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E46 M3 Schrick 296 Degree Exhaust Camshaft with 14.0mm valve lift. This is only for use in professionally-built E46 M3 race engines. Schrick has developed this ultra-aggressive S54 race cam with 296-deg duration and 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends it be used with no VAN0S or with special custom pistons with deep valve reliefs. We strongly recommend this be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with this cam:
Schrick valve springs
Schrick rocker arms
Schrick upper and lower retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe

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

Sub-Categories

Bav Auto High-Performance Ignition Coil - N20 N52 N54 N55 S55 ...

Bav Auto High-Performance Ignition Coil - M62 M73 M52 M54 S52 S62 ...

High-Performance Ignition Coil - Set Of 6

New Alternator - 120A

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

Upper Timing Chain Tensioner

Bav Auto Ignition Coil - N20 N52 N55 N54 N62 S55

Bav Auto Variable Engine Timing Solenoid Switch - BMW E39 E46 E53 E83...

Alternator - 120amp

Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54

Bavarian Autosport M52/M54/S52 Exact-Fit Rubber Vanos Line

Bavarian Autosport Valve Cover Assembly - BMW M54 2.5L and 3.0L ...

Active Autowerke Rotrex Traction Fluid - 1 Liter

Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 272 Degree, 12.5m...

Oil Separator Hose - E46, Z4

Timing Chain - Upper

Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3

Oil Pump Chain

Bav Auto Upper Oil Separator Vent Tube - E36 E46 E60 E84 Z3 Z4 M54 M5...

Schrick Intake Camshaft - E46 M3, MZ3, MZ4 (S54) - 288 Degree, 12.5mm...

M9 X 1.25 BMW 328 E46 Rod Bolt Kit

Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 296 Degree, 14.0m...

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