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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$ 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. 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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11-07-2026

$ 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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Alternator - 120amp

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T#:25042542

Part#: 12317831436

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11-07-2026

$ 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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Morimoto Standalone Can-Bus Wiring Harness - H4 / 9003 - Priced Each ...

T#:54388428

Part#: H240

Ships on Dec 1, 2026

$ 21.99 USD

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DeatschWerks High-Flow Billet Fuel Rail - -8AN ORB - 7-900 - E36, E46...

T#:53891648

Part#: 7-900

Ships in 7 Business Days

$ 219.00 USD

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$ 219.00 USD

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Upgrade your classic BMW's aging fuel system with the DeatschWerks 7-900 Performance Fuel Rail.

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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DeatschWerks 1500cc Injectors (Set of 6) - 16M-30-1500-6 - E46, E9x ...

T#:53820907

Part#: 16M-30-1500-6

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$ 1,259.00 USD

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$ 1,259.00 USD

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If you are pushing the limits of your naturally aspirated build, the DeatschWerks fuel injector kit provides the reliability you need.

DeatschWerks DW420 Fuel Pump - With Install Kit - 9-421-1031 - E36, E...

T#:53997724

Part#: 9-421-1031

Ships in 7 Business Days

$ 199.00 USD

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$ 199.00 USD

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A direct-fit upgrade over your restrictive factory unit, this all-in-one 420 LPH high-flow pump drops straight into the OE cradle without fuel hat modifications.

DeatschWerks S54 Fuel Injector Set - 550cc - Set of 6 - 16u-18-0550-6...

T#:53891617

Part#: 16U-18-0550-6

Ships in 7 Business Days

$ 469.00 USD

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$ 469.00 USD

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The DeatschWerks 16u-18-0550-6 is a vehicle-specific, high-flow fuel injector system designed for premium European sport applications.

DeatschWerks M52 N52 Fuel Injector Set - 850cc - Set of 6 - 17MX-00-0...

T#:53891625

Part#: 17MX-00-0850-6

Ships in 7 Business Days

$ 619.00 USD

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$ 619.00 USD

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The DeatschWerks 17MX-00-0850-6 fuel injector kit is a premium, vehicle-specific fueling solution built to eliminate the guesswork of universal fuel upgrades.

DeatschWerks S54 Fuel Rail Kit - 7-902 - E46 M3

T#:53891651

Part#: 7-902

Ships in 7 Business Days

$ 219.00 USD

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$ 219.00 USD

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Upgrade your vehicle's fueling infrastructure with the sleek, matte black DeatschWerks 7-902 fuel rail kit.

DeatschWerks S54 Fuel Injector Kit - 450cc - Set of 6 - 16u-18-0450-6...

T#:53891616

Part#: 16U-18-0450-6

Ships in 7 Business Days

$ 409.00 USD

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$ 409.00 USD

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Unlock the hidden potential of your classic BMW M-series vehicle with the DeatschWerks 16u-18-0450-6 Fuel Injector Set.

DeatschWerks M52 N52 Fuel Injectors Set - 1100cc - Set of 6 - 17MX-00...

T#:53891629

Part#: 17MX-00-1100-6

Ships in 7 Business Days

$ 619.00 USD

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$ 619.00 USD

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Upgrade your vehicle's fuel delivery with the DeatschWerks 17MX-00-1100-6 fuel injector set.

DeatschWerks M52 N52 Fuel Injector Set - 600cc - Set of 6 - 17MX-00-0...

T#:53891620

Part#: 17MX-00-0600-6

Ships in 7 Business Days

$ 619.00 USD

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$ 619.00 USD

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Unlock the true horsepower potential of your European performance machine with the DeatschWerks 600cc Fuel Injector Set (Part #17MX-00-0600-6).

DeatschWerks X2 Module with DW420 Pumps and PTFE Plumbing Kit - 9-421...

T#:53997725

Part#: 9-421-629-7070

Ships in 7 Business Days

$ 1,699.00 USD

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$ 1,699.00 USD

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Upgrade your vehicle's fueling system with the ultimate all-in-one upgrade package: the DeatschWerks X2 Fuel Pump Module Kit.

DeatschWerks X2 Fuel Pump Module - 9-000-7070 - E36, E46

T#:53891653

Part#: 9-000-7070

Ships in 7 Business Days

$ 679.00 USD

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$ 679.00 USD

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Take full control over your fuel system architecture with the DeatschWerks 9-000-7070 X2 Series Fuel Module.

DeatschWerks X2 Fuel Pump Drop in Module + DW420 Pumps- BMW E36/E46 ...

T#:52903276

Part#: 9-421-7070

Ships in 3 Business Days

$ 899.00 USD

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$ 899.00 USD

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This drop-in module and pump kit relocates the fuel plumbing directly into the OE tank without any chassis modifications.

DeatschWerks CPE Stainless Plumbing Kit - 6-628 - E36, E46

T#:53891646

Part#: 6-628

Ships in 7 Business Days

$ 899.00 USD

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$ 899.00 USD

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The DeatschWerks 6-628 plumbing kit is a comprehensive -8AN plumbing solution built to meet the rigorous demands of modified Euro applications.

DeatschWerks S54 Fuel Injectors Set - 1000cc - Set of 6 - 16u-18-1000...

T#:53891619

Part#: 16U-18-1000-6

Ships in 7 Business Days

$ 659.00 USD

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$ 659.00 USD

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For tuners and builders who demand absolute precision, the DeatschWerks injector kit provides the exact calibration data and manufacturing consistency needed for seamless ECU tuning.

DeatschWerks PTFE Stainless Plumbing Kit - 6-629 - E36, E46

T#:53891647

Part#: 6-629

Ships in 7 Business Days

$ 949.00 USD

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$ 949.00 USD

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The DeatschWerks 6-629 is a comprehensive 8AN PTFE Stainless Steel Fuel System Plumbing Kit tailored directly for 1992–2006 BMW 3-Series (E36/E46) applications.

DeatschWerks S54 DW Fuel Rail - 2200cc - 16S-18-2200-6 - E46 M3 ...

T#:53820937

Part#: 16S-18-2200-6

Ships in 7 Business Days

$ 989.00 USD

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$ 989.00 USD

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For the serious BMW tuner, the DeatschWerks 16S-18-2200-6 is more than just a piece of engine jewelry; it is a critical upgrade for the legendary S54 platform.

DeatschWerks S54 Fuel Injector Set - 2400cc - Set of 6 - 16S-18-2400-...

Fits BMW S54 engine equipped with DeatschWerks S54 Fuel Rail

T#:53891615

Part#: 16S-18-2400-6

Ships in 7 Business Days

$ 989.00 USD

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$ 989.00 USD

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Take the guesswork out of calibrating your high-power BMW S54 engine with the DeatschWerks 16S-18-2400-6 Fuel Injector Set.

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

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