BMW Radiators for BMW 3 Series E46 (1999-2005)

Clear BMW chassis

We sell only OE supplier or approved aftermarket upgrade radiators for your BMW. It seems BMW took some shortcuts when it came to radiator design and used weak materials like plastic for critical connection points. If you are tracking older models like E30, E36, or E46, you probably are well aware of these issues. As these cars age, the plastic pieces become more brittle and failure prone. The solution is to replace with upgraded radiators that perform as upgrades for the original, failure prone radiator to avoid being left on the side of the road or, worse yet, the track.

Sort By:

Cooling System Overhaul Kit - E46 323i/ci 325i/ci/xi 328i/ci 330i/ci/...

10X Entries Into Our F80 M3 Sweepstakes

T#:554552

Part#: 17119071519KT5

Ships in 1 Business Day

Sale - Save 4% $ 979.99

This product was last offered at the strikethrough price on
08-17-2026

$ 944.54 USD

Add to Wish List

Qty

Sale - Save 4%

$ 979.99

This product was last offered at the strikethrough price on
08-17-2026

$ 944.54 USD

Add to Wish List

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E46 with the M52/54 engine.

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts.

This cooling system overhaul kit fits the following BMWs:
1999-2000 E46 3 Series Sedan/Wagon - 323i & 328i
1999-2000 E46 3 Series Coupe/Convertible - 323Ci & 328Ci
2001-2002 E46 3 Series Sedan/Wagon - 325i, 325xi, 330i, 330xi
2001-2002 E46 3 Series Coupe/Convertible - 325Ci, 330Ci

Show More Show Less

ECS Cooling System Refresh Kit - Level 3 plus

10X Entries Into Our F80 M3 Sweepstakes

T#:15710794

Part#: 17119071519G-KT

Ships in 3 Business Days

Sale - Save 1% $ 1,353.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,338.26 USD

Add to Wish List

Qty

Sale - Save 1%

$ 1,353.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,338.26 USD

Add to Wish List

Stop the problems before they arise. If your vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000-mile intervals. Water pump failure cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. Stewart High-Performance Water Pump ECS Aluminum Water pump pulley Fan Switch Thermostat with Housing Sealing Gaskets Expansion Tank with level sensor and clamp Pressure Cap 1 Gallon Coolant Upper & Lower Radiator Hoses Accessory Drive Belts Radiator Drain Plug Mishimoto Performance Aluminum Radiator Idler Pulley Hydraulic Tensioner and Pulley A/C Belt Tensioner Assembly

Show More Show Less

ECS Cooling System Refresh Kit - Level 3

10X Entries Into Our F80 M3 Sweepstakes

T#:15710765

Part#: 07119904677-KT

Ships in 3 Business Days

Sale - Save 4% $ 1,019.99

This product was last offered at the strikethrough price on
08-17-2026

$ 983.89 USD

Add to Wish List

Qty

Sale - Save 4%

$ 1,019.99

This product was last offered at the strikethrough price on
08-17-2026

$ 983.89 USD

Add to Wish List

Prevent cooling issues and take service of your cooling system one step further with an ECS Tuning Level 3 Cooling System Maintenance Kit. The experts at ECS have identified all of the common parts of the cooling system generally considered weak links on your BMW. Stop the problems before they arise. If you vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. This kit was put together by ECS for a complete cooling system service. HEPU water Pump with metal impeller ECS Aluminum Water pump pulley Fan Switch Thermostat with Housing Sealing Gaskets Expansion Tank with level sensor and clamp Pressure Cap 1 Gallon Coolant Upper & Lower Radiator Hoses Accessory Drive Belts Radiator Drain Plug Nissens Radiator Idler Pulley Hydraulic Tensioner and Pulley A/C Belt Tensioner Assembly

Show More Show Less

BMW E46 AAF Aluminum Radiator Mounting Kit

T#:7608839

Part#: 11641

In Stock at Vendor

$ 189.00 USD

Add to Wish List

Qty

$ 189.00 USD

Add to Wish List

BMW E46 AAF Aluminum Radiator Mounting Kit provides a robust solution for mounting an aluminum radiator into the BMW E46 chassis without relying on the stock plastic mounts. Developed by Advanced Auto Fabrication, a company renowned for their expertise in producing high-performance race car components, this kit reflects their extensive knowledge and dedication to BMW race car design.

The mounting kit is designed to replace the stock mounting system and is compatible with lightweight aftermarket fans, as the stock electric fan cannot be used. Please note that this kit does not fit M3 models.

Durable Construction: Made from high-quality aluminum for strength and longevity.
Enhanced Cooling Efficiency: Allows for the use of aftermarket fans for improved cooling performance.
Race-Ready Design: Reflects Advanced Auto Fabrication's expertise in BMW race car components.
No Stock Plastic Mounts: Provides a more reliable and robust mounting solution than the factory system.

Show More Show Less