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

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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.

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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

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Sale - Save 4%

$ 979.99

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

$ 944.54 USD

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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

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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

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Sale - Save 1%

$ 1,353.99

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

$ 1,338.26 USD

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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

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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

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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

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E46 323/325/328/330 Manual, Z4 OEM Behr Radiator

T#:338021

Part#: 17119071518

In Stock at Vendor

Starting at $ 249.99 USD

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Starting at $ 249.99 USD

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This is a BEHR brand (OEM supplier to BMW) replacement radiator for all 1999-2006 E46 3 series (non-M), including 323i, 323Ci, 328i, 328Ci, 325i, 325Ci, 330i, 330Ci, and Z4 2.5 and 3.0. Compare to BMW list price of $318! Save big, while still getting the highest quality radiator available for your BMW.

This radiator fits the follow BMWs: :
Only for Manual Transmission
1999-5/2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi - Not for cars with M56 engine

2003-2006 E85 BMW Z4 2.5i Z4 3.0i - M54 engine
2006-2008 E85 BMW Z4 M Roadster M Coupe

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