Oiling System for BMW 3 Series E46 (1999-2005)

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Tasked with keeping everything properly lubricated, the oiling system is one of the most if not THE most fundamental parts of the engine. Make sure that everything is in good working order and flowing properly to ensure your engine has a long and trouble-free service life.

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ECS Tuning Magnetic Oil Drain Plug - M12x1.5
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ECS - Corporate Logo
T#:361057
Part#: 002201ECS01A
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This product was last offered at the strikethrough price on
11-07-2026

$ 23.39 USD
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$ 38.99

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

$ 23.39 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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-10AN ORB X 3/4" Hose Barb Fitting Assembly
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ECS - Corporate Logo
T#:584114
Part#: 003779ECS10
In Stock
Sale - Save 40% $ 39.99

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

$ 23.99 USD
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$ 39.99

This product was last offered at the strikethrough price on
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Elevate your custom installation with the ECS -10AN O-Ring Boss fitting, a crucial component that connects your ECS Tuning Catch Can to a 3/4" ID hose. This fitting simplifies your plumbing setup, ensuring a seamless solution.

Featuring a pre-installed Viton O-ring, this fitting is engineered for excellence, providing a leak-proof seal that resists the effects of oil and fuel exposure, guaranteeing long-term durability.

The 3/4" nipple is thoughtfully designed with barbs to secure hose position effectively, minimizing the risk of hose disconnection. Keep in mind that clamps and hoses are available for separate purchase. These fittings are sold individually, with most installations requiring a pair of them.

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Turner Universal Baffled Oil Catch Can Mounting Bracket Kit - BMW & M...
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ECS - Corporate Logo
T#:383333
Part#: 003779ECS06KT
In Stock
Sale - Save 30% $ 95.99

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

$ 67.19 USD
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$ 95.99

This product was last offered at the strikethrough price on
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$ 67.19 USD
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If you don't wish to fabricate intricate brackets to mount your ECS Baffled Oil Catch Can we have the solution. ECS's three-piece bracket kit includes two options for securing the catch can. Choose from either a flat parallel mounting plate or a bent 90° mounting plate to give you 360° rotation for an infinitely adjustable mounting location.
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BMW N52 N44 VANOS Oil Feed Line
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URO - Corporate Logo
T#:361997
Part#: 11361705532
Ships in 1-3 days
$ 35.01 USD
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BMW N52 N44 VANOS Oil Feed Line is essential for ensuring reliable oil supply to the VANOS cam unit in your BMW. Manufactured by URO Parts, a leading name in the aftermarket automotive industry, this oil feed line is designed to meet the highest standards of quality and performance. Turner Motorsport offers this direct replacement component, crafted to ISO 9000 certification standards, ensuring long-lasting durability and seamless integration with your BMW's engine. With this high-quality oil feed line, you can maintain optimal engine performance and avoid potential issues related to insufficient oil flow.

  • Ensures reliable oil supply to the VANOS cam unit
  • Manufactured by URO Parts, a trusted name in the industry
  • Direct replacement for seamless installation
  • Meets ISO 9000 certification standards for quality
  • Supports optimal engine performance and longevity
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URO Oil Filler Cap
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URO - Corporate Logo
T#:6795781
Part#: 11127832157
Ships in 1 Business Day
$ 35.99 USD
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Replace your damaged or missing oil cap. Great quality replacement that is manufactured to original equipment dimensions and guaranteed to fit. Stop leaking from damaged oil cap or seal.
Oil Filter Housing Cap
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URO - Corporate Logo
T#:12151731
Part#: 11421744000
In Stock
$ 28.99 USD
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Over time has the cap for your oil filter housing become harder to remove? Using the wrong tool can round the nut cast into the top of the cap, making removal harder each time. This oil filter housing fits cars with the M52, M54, or M56 engines. If you are looking for a more durable, easier-to-remove replacement, Turner Motorsport trusts ECS Tuning's Billet Aluminum Oil Filter Housing Caps
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ECS Tuning Baffled Oil Catch Can - 8oz
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ECS - Corporate Logo
T#:13496655
Part#: 003779ECS05-02
In Stock
Sale - Save 10% $ 238.99

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

$ 215.09 USD
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$ 238.99

This product was last offered at the strikethrough price on
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$ 215.09 USD
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Upgrade Your BMW with ECS Baffled Oil Catch Can

Modern emission regulations require a closed PCV/Breather system for cleaner operation. However, inefficient oil particle capture can lead to excessive oil vapor ingestion, causing carbon buildup, reduced performance, and fuel economy. ECS Tuning's updated ECS Baffled Oil Catch Can, now with an easy-to-empty 1/4" drain fitting, is engineered to collect toxic blow-by gases, minimize carbon deposits, and reduce oil contamination within engine oil. Recirculating oil vapor ensures emissions compliance without venting to the atmosphere.

  • Key Features:
  • Highly Efficient Oil Separator: Strategically positioned 4 chamber baffle system maximizes oil/air separation and minimizes oil droplets in the intake tract.
  • Integrated Dipstick: Knurled and black anodized oil dipstick simplifies oil volume inspection.
  • Reservoir: Available in 6oz or 8oz capacity with a 1/4" NPT drain plug fitting.
  • Serviceable: Easily removable baffle plates and drain plug for cleaning.
  • Easy/Customizable Installation: Combine with the ECS Universal Bracket Kit for simplified installation and adjustable mounting locations.
  • Leak-Free Fittings: Machined -10AN ORB (O-Ring Boss) fittings available for secure connections (fittings sold separately).
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BMW M54 Billet Aluminum Oil Dipstick - Black
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ECS - Corporate Logo
T#:384357
Part#: 009424ECS01-02
In Stock
Sale - Save 30% $ 100.99

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

$ 70.69 USD
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$ 100.99

This product was last offered at the strikethrough price on
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$ 70.69 USD
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Enhance Your Engine Bay with ECS Tuning Billet Aluminum Oil Dipstick

Sick of the glaring red plastic oil dipstick in your engine bay? Looking for a subtle yet striking upgrade to enhance your vehicle's aesthetics? ECS Tuning proudly introduces the Billet Aluminum Oil Dipstick. This dipstick adheres to OE specifications, features an easy-to-read fill line, and comes in three distinct finishes: black, polished, or clear anodized.

Here's why the ECS Tuning Billet Aluminum Oil Dipstick stands out as the perfect choice for automotive enthusiasts:

  • Engineered to OE specifications for an exact fit and optimal performance.
  • Available in three stylish finishes to match your personal taste: black, polished, or clear anodized.
  • Not only elevates the visual appeal of your engine bay but also enhances performance.
  • Exceptional durability and ease of insertion set it apart from the factory ribbon dipstick.
  • Say farewell to the frustration of reinstalling your dipstick – it's a breeze with this upgrade.

Elevate your engine bay aesthetics and enjoy improved functionality with the ECS Tuning Billet Aluminum Oil Dipstick, a fusion of style and substance.

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ECS Tuning Baffled Oil Catch Can - 6oz
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For use with custom plumbing and ECS universal mounting bracket kit
ECS - Corporate Logo
T#:17140141
Part#: 003779ECS05-01
In Stock
Sale - Save 25% $ 238.99

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

$ 179.24 USD
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Sale - Save 25%
$ 238.99

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

$ 179.24 USD
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Meet modern emission regulations while preserving engine performance with the ECS Baffled Oil Catch Can. Designed for BMW and MINI vehicles, this system efficiently captures blow-by gases, preventing excessive oil vapor ingestion into the intake tract. The innovative 4-chamber baffle system maximizes oil/air separation, reducing carbon build-up and pollutants. Featuring a 1/4" drain fitting for easy maintenance, this catch can minimizes oil deposits, ensuring cleaner emissions and enhanced engine performance.

Key Benefits:

  • Efficient 4-chamber baffle system for maximum oil/air separation
  • Recirculated design reduces oil ingestion, promoting cleaner emissions
  • Durable 6061-T6 billet machined body with anodized black finish for longevity
  • Integrated dipstick and sealed reservoir for easy oil inspection and maintenance
  • Serviceable design with removable baffle plates for cleaning
  • Easy installation with customizable mounting options and leak-free fittings
  • Engineered and manufactured in the USA for superior performance and durability

Note: Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.

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Oil Level Sensor
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URO - Corporate Logo
T#:590151
Part#: 12617508003
In Stock
$ 63.99 USD
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$ 63.99 USD
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URO Oil Pan
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URO - Corporate Logo
T#:640378
Part#: 11131432703
Ships in 1 Business Day
$ 357.99 USD
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Replace your cracked or damaged oil pan with this URO part that fits models with the M52tu, M54 and M56 engines. The BMW aluminum oil pans can be damaged by road debris or even by putting the drain pan bolt in incorrectly.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci
2003-2005 E85 BMW Z4 2.5i Z4 3.0i -M54
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Pierburg - Corporate Logo
T#:38655172
Part#: 11417838123
Ships in 1 day
$ 1,038.99 USD
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The Pierburg Oil Pump for S54 Engine is a high-performance upgrade designed to enhance oil flow and pressure, ensuring optimal lubrication and efficiency for your BMW’s S54 engine. Crafted for reliability and durability, this oil pump improves engine performance and longevity, making it an essential part for those seeking to maximize the potential of their BMW M3 or other S54-equipped vehicles.
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Upgraded Oil Pump Shaft & Installation Kit
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Packaged by Turner - Corporate Logo
T#:27372104
Part#: 11AMUOPSK-M54KT2
In Stock
$ 427.99

This product was last offered at the strikethrough price on
05-15-2026

$ 422.99 USD
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$ 422.99 USD
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Experience peace of mind with Achilles Motorsports' upgraded oil pump shaft kit, designed specifically to address the well-known harmonics-related issues plaguing the M54 engine. Say goodbye to worries about oil pump shaft failures causing sudden oil pressure drops.

Achilles Motorsports goes above and beyond, crafting their oil pump shafts from the toughest materials and subjecting them to rigorous heat treatment processes for maximum strength. The core of this kit features a hardened Chromoly shaft, precision centerless ground to ensure absolute accuracy. What sets this kit apart is its exclusive square key lock system, preventing gear slippage and reinforcing the gear mounting area for added durability.

No more concerns about the oil pump nut coming loose—Achilles Motorsports has replaced it with an extended-length bolt, EDM drilled for safety wire, ensuring a secure fit in all conditions. Avoid costly engine repairs due to oil pump failures by taking proactive measures with this comprehensive upgrade kit.

This kit, curated by the team at Turner Motorsport, includes everything you need for a complete upgrade:

Achilles Motorsports Upgraded Oil Pump Shaft Liqui Moly Molygen 5w-40 Oil (6 liters) Hengst Oil Filter Oil Drain Plug and Reminder Sticker Elring Oil Pan Gasket IWIS Oil Pump Chain Upgrade your M52TU/M54 engine and shield it from potential catastrophic failure with this meticulously crafted upgrade kit from ECS Tuning.

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Oil Drain Plug
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Packaged by Turner - Corporate Logo
T#:41188174
Part#: 11137535106TKT
In Stock
Sale - Save 47% $ 8.99

This product was last offered at the strikethrough price on
09-22-2026

$ 4.80 USD
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$ 8.99

This product was last offered at the strikethrough price on
09-22-2026

$ 4.80 USD
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Includes a one time use crush washer.
Liqui Moly MolyGen Oil Change Kit / Inspection I
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Packaged by Turner - Corporate Logo
T#:15710747
Part#: 111375351060-KT
In Stock
Sale - Save 6% $ 111.99

This product was last offered at the strikethrough price on
08-31-2026

$ 105.00 USD
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This product was last offered at the strikethrough price on
08-31-2026

$ 105.00 USD
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This new generation oil is made with a quality synthetic base and includes a molecular friction modifier for reduced friction and wear. It also glows under UV light so leaks can be easily traced! This unique oil contains a fluorescent green chemical friction modifier to smooth out hard metal surfaces, reducing overall engine wear and heat due to friction. Tests have shown a reduction in friction coefficient of as much as 15%! MolyGen oil is also a great choice for modern turbocharged engines which produce much more heat. The kit contains: Seven Quarts of Liqui Moly MolyGen Engine Oil Oil Filter Kit Drain Plug with Crush Washer
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Heavy duty Constant Pressure Valve O-Ring - Priced Each
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ECS - Corporate Logo
T#:380979
Part#: 11111318185ECS
In Stock
Sale - Save 40% $ 25.99

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

$ 15.59 USD
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$ 25.99

This product was last offered at the strikethrough price on
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Fix oil leaks on your BMW's passenger side engine with Turner Motorsport's CPV O-ring replacement. The O-ring failure in the CPV typically leads to slow oil leaks, and now you can address this issue at a fraction of the cost by replacing the O-ring instead of the entire CPV. Unlike the OEM Buna rubber, the new Viton Fluoroelastomer used in this O-ring is resistant to higher temperatures, ensuring prolonged life without leaks.

  • Cost-effective solution for oil leaks on the passenger side of the engine
  • Replaces the CPV O-ring without replacing the entire CPV
  • Viton Fluoroelastomer resistant to higher temperatures
  • Prolonged life without leaks
  • Addresses O-ring failure due to heat cycling and oil exposure
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3 Pin Connector
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ECS - Corporate Logo
T#:33412925
Part#: 12521433915
In Stock
Sale - Save 40% $ 10.99

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

$ 6.59 USD
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$ 10.99

This product was last offered at the strikethrough price on
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$ 6.59 USD
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Includes connector housing with terminals and seals. Commonly used for the engine oil level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 12521433915 - Commonly used for the engine oil level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Oil Cap
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URO - Corporate Logo
T#:375426
Part#: 11121743294
Ships in 1 Business Day
$ 5.99 USD
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Just the cap only!

2 Pin Connector
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ECS - Corporate Logo
T#:33412928
Part#: 12521427615
In Stock
Sale - Save 35% $ 7.99

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

$ 5.19 USD
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Sale - Save 35%
$ 7.99

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

$ 5.19 USD
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Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch. ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need. Each connector includes an additional terminal in case one becomes lost or damaged during installation. *OEM cross reference PN# 12521427615 - Commonly used for the engine oil pressure switch. Please reference the original part number from the existing connector to confirm fitment, before ordering. Suggested tools: Suggested crimping pliers: T#387193 Wire De-pin tools: 12pc De-Pin Tool Set - T#386379 23pc De-Pin Tool Set - T#641943
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