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ECS BMW Maintenance & Tune-Up Parts for BMW 3 Series E46 (1999-2005)

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Part of owning a BMW is the relationships we develop with our cars through years of driving pleasure and maintenance services alike. It is critical to guarantee the job is right the first time. With recommended OEM supplied components and by following the maintenance schedule, your BMW is sure to continue giving you years of enjoyment on the street or track. All the filters, service kits, service manuals, fluids, and more are right here to help keep your BMW in perfect shape.

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ECS Tuning Magnetic Oil Drain Plug - M12x1.5

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T#:361057

Part#: 002201ECS01A

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Sale - Save 25% $ 38.99

This product was last offered at the strikethrough price on
06-13-2026

$ 29.24 USD

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Turn your oil drain plug into an effective metal particle filter! This drain plug fits virtually all BMWs, and has a SUPER strong magnet built into it's tip, trapping iron and steel contaminants and safely removing them from the circulation.

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E36/E46/Z3/Z4 ECS Tuning Aluminum Water Pump Pulley - Black

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T#:363707

Part#: 001977ECS03A

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Sale - Save 5% $ 104.99

This product was last offered at the strikethrough price on
06-13-2026

$ 99.74 USD

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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the M50/M52/M52TU/M54 engine in the E36, E46, Z3, Z4, and other models. It uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.

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ECS Exact-Fit High Flow Air Filter - Dry M52 2.5L & 2.8L / S54 3.2L ...

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T#:7797568

Part#: 012054LA08-DRY

In Stock

Sale - Save 25% $ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 53.99 USD

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Sale - Save 25%

$ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 53.99 USD

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Enhance your BMW's performance with the Turner Motorsport Exact-Fit High Flow Dry Air Filter, replacing the factory air filter for optimal airflow. This reusable filter offers a higher flow than stock paper filters, instantly improving engine power and fuel economy across the power band. As a direct replacement for the OEM filter, it's a hassle-free performance modification that shows immediate results. Choose between oiled and dry filters based on your preference and maintenance preferences, with both options outperforming OE paper filters. The dry filter, in particular, requires minimal maintenance, making it a cost-effective and efficient choice.

Enhances engine performance and fuel economy
Higher flow than OEM paper filters
Reusable and washable for long-term use
Direct replacement for the OEM filter
Choose between oiled and dry filters based on maintenance preference
Dry filter requires minimal maintenance and no oiling
Cleaning needed only every 50,000 miles under normal highway driving conditions
Cost-effective alternative to regularly replacing paper filters

Be sure to check out the full line of filter cleaning supplies Turner Motorsport has to offer!

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - Water Pump ...

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T#:20979672

Part#: 6PK1460

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$ 33.99 USD

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$ 33.99 USD

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Replaces BMW # 11287837898 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! Kevlar reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM style belts. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - A/C - E46 M...

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T#:23416515

Part#: 5PK830

Ships on Aug 3, 2026

$ 26.99 USD

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$ 26.99 USD

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Replaces BMW # 11287830946 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! Kevlar reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM style belts. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:367060

Part#: 002778ECS01

Ships on Nov 17, 2026

Sale - Save 10% $ 100.99

This product was last offered at the strikethrough price on
06-13-2026

$ 90.89 USD

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Sale - Save 10%

$ 100.99

This product was last offered at the strikethrough price on
06-13-2026

$ 90.89 USD

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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the S54 engine in the E46 M3, MZ3, and Z4M. It's the same size and uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.

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ECS Exact-Fit High Flow Air Filter - Dry E46/E83 M54 2.5 & 3.0L Engin...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:5082404

Part#: 012054LA10-DRY

In Stock

Sale - Save 25% $ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 53.99 USD

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Qty

Sale - Save 25%

$ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 53.99 USD

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Upgrade your BMW's air filtration system with the Turner Motorsport Exact-Fit High Flow Dry Air Filter. This direct replacement for your factory air filter offers superior airflow, allowing your engine to breathe better and enhancing both power and fuel economy. Enjoy immediate performance gains with this reusable filter, which outperforms stock paper filters and requires minimal maintenance.

Key Benefits:

Improves engine breathing for better performance
Enhances power throughout the power band
Increases fuel economy
Reusable filter for long-term savings
Easy installation as a direct OEM replacement

Oiled versus Dry Filters:

Although both options will keep the air to your engine clean and improve airflow, there are a few differences to consider when choosing the best filter for you. Oiled filters do allow slightly better airflow than dry filters, however they require more maintenance. Oiled filters will likely get dirty faster, needing to be cleaned more regularly. When cleaning an oiled filter, it is necessary to oil them with filter oil afterwards. This filter will save you money by no longer needing to replace a paper filter.

Dry filters offer slightly lower airflow but are easier to maintain while still outperforming the OE paper filter. Dry filters can be washed with warm soapy water. There is no oiling necessary afterwards.

Both dry and oiled filters flow better than stock and can be reused.

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ECS Performance Kevlar Reinforced Accessory Belt - E46 E39 E53 E63 E8...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639025

Part#: 6PK1538

Ships on Aug 24, 2026

$ 35.99 USD

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$ 35.99 USD

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ECS Tuning Performance Kevlar-reinforced belts give you that extra peace of mind! Kevlar reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM style belts. ECS Tuning Performance Kevlar-reinforced belts have been put through a series of multiple tests: Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - A/C - BMW ...

For vehicles with production date up to 09/2002

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:21693590

Part#: 5PK863

In Stock

$ 26.99 USD

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$ 26.99 USD

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Replaces BMW # 11281437450 and 11281437872 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! Kevlar reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM style belts. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - A/C - E46 E...

For vehicles with production date from 09/2002

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:20979670

Part#: 4PK863

In Stock

$ 26.99 USD

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$ 26.99 USD

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Replaces BMW # 11287512762, 11281437450, and 11281437872 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! Kevlar reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM style belts. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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ECS Exact-Fit High Flow Air Filter - Oiled

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:5082383

Part#: 012054LA08-OIL

In Stock

Sale - Save 25% $ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 53.99 USD

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Qty

Sale - Save 25%

$ 71.99

This product was last offered at the strikethrough price on
06-14-2026

$ 53.99 USD

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