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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Turner Motorsport - Corporate Logo
T#:18003818
Part#: 008363LA02
In Stock
$ 499.99

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

$ 331.02 USD
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$ 331.02 USD
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Our Turner Motorsport's full aluminum expansion tank was designed and engineered in house to help with the weak point in your E46 cooling system. The coolant expansion tank goes through heat cycles over and over again from regular driving, it is important that your expansion tank is doing its job to retain coolant to keep your engine operating temperatures down and keep your engine bay clean. Not only is this a major upgrade but also a great maintenance item to replace. Our expansion tank was designed to fit the OEM hoses for an easy install and comes with all the upgraded items you will need for a clean install.

If your BMW needs a new expansion tank, make sure this is the last expansion tank you ever need to buy. Our coolant expansion tank has a full aluminum construction and wrinkle black powder coat for durability. Expansion tank kit comes with all the accessories you need to replace your expansion tank once, and never have to worry about it again.

Product Features:

Maintains stock coolant capacity and expansion volume
Designed to maintain OE coolant elevation, preventing air pockets
Baffled tank ensures that air pockets cannot be introduced during aggressive driving and provides accurate coolant level reading
Carefully designed bleed passage prevents the introduction of air as the engine cools
Turner engraved internal fill level
TIG welded 5052 aluminum construction
All bungs are machined to fit factory hose ends
Kit contents:

Turner Aluminum Expansion Tank
Coolant level sensor
Expansion tank cap
Flared coolant pressure release line
Hardware for installation
Product Development:

Turner expansion tanks are designed, engineered, tested and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer and rigorous long term product testing.

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Turner Motorsport - Corporate Logo
T#:21966009
Part#: TMSS54IGNKT
In Stock
Sale - Save 8% $ 320.99

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

$ 293.72 USD
Free Shipping
Sale - Save 8%
$ 320.99

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

$ 293.72 USD
Free Shipping
High-performance ignition kit for your S54 featuring spark plugs, Turner high-performance ignition coils, and dielectric grease to make sure you have no issues at your next maintenance interval! Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, and Spark). Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient, and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that gives your engine the performance and aesthetic you're looking for. All Turner Ignition coils are backed by a confidence-inspiring 2-year warranty. Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engine's health, performance, and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy. Features and Benefits: Increased performance New spark plugs and grease Direct fitment Signature Turner Blue ignition coils Ignition coils backed by a 2-year warranty
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Turner Motorsport - Corporate Logo
T#:590358
Part#: PPK-S54
In Stock
Sale - Save 25% $ 418.99

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

$ 314.24 USD
Free Shipping
Sale - Save 25%
$ 418.99

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

$ 314.24 USD
Free Shipping

Upgrade your BMW's performance with Turner Power Pulleys, designed to enhance engine efficiency and increase available horsepower. These pulleys reduce the rotation of essential accessories by up to 10-20%, redirecting engine power to the wheels. Turner ensures these pulleys maintain proper functionality through rigorous on and off-track testing.

Crafted from durable T-6061 aluminum and finished in black hard anodizing, Turner Power Pulleys offer longevity, heat resistance, and chemical durability. They retain the stock-like appearance while providing increased strength and reduced weight, eliminating concerns about plastic failure.

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High-Performance Ignition Service Kit - M54 Late Model
For vehicles with production date from 10/2002
Turner Motorsport - Corporate Logo
T#:18070225
Part#: 12131712219TKT1
In Stock
Sale - Save 13% $ 267.77

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

$ 232.70 USD
Free Shipping
Sale - Save 13%
$ 267.77

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

$ 232.70 USD
Free Shipping

High performance ignition kit for your M54 featuring spark plugs, Turner high performance ignition coils and grease to make sure you have no issues at your next maintenance interval!

Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that give your engine the performance and aesthetic your looking for.

Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engines health, performance and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy.

Features and Benefits:

Increased performance
New spark plugs and grease
Direct fitment
Signature Turner Blue ignition coils

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BMC - Corporate Logo
T#:397411
Part#: FB132/01
In Stock at Vendor
$ 84.99 USD
Free Shipping
$ 84.99 USD
Free Shipping
Looking to upgrade your air filter for increased flow and performance? BMC filter allow significantly higher air flow and are perfectly molded in one piece to fit exactly the same as your stock air filter. These filters are constructed from multi-layerd cotton gauze that is pre-oiled and can be cleaned and regenerated using the BMC regeneration kit.
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Turner Motorsport - Corporate Logo
T#:402449
Part#: S54-INT-S1KT
Ships on Nov 19, 2026
Sale - Save 10% $ 246.99

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

$ 222.29 USD
Free Shipping
Sale - Save 10%
$ 246.99

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

$ 222.29 USD
Free Shipping

Sunex - Corporate Logo
T#:641915
Part#: 8845D
Ships in 7 Business Days
$ 141.99 USD
Free Shipping
$ 141.99 USD
Free Shipping
Complete set of spark plug sockets.