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BMW Radiators

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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Stock Replacement Radiator - E30 M3
Stock Replacement Radiator - E30 M3
Packaged by Turner - Corporate Logo
T#:338019
Part#: 17112225592
Back Ordered
Starting at $ 347.99 USD
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Starting at $ 347.99 USD
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This is a new stock E30 M3 Radiator. We offer both Genuine BMW or Nissens brand radaitors. The Genuine BMW radiator is the highest quality radiator available. The Nissens is a high quality aftermarket radatior.

This item fits the following BMWs:
1988-1991 E30 BMW M3
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Cooling System Overhaul Kit - E46 323i/ci 325i/ci/xi 328i/ci 330i/ci/xi
Cooling System Overhaul Kit - E46 323i/ci 325i/ci/xi 328i/ci 330i/ci/...
Packaged by Turner - Corporate Logo
T#:554552
Part#: 17119071519KT5
In Stock at Vendor
$ 979.95 USD
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$ 979.95 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
ECS Cooling System Refresh Kit - Level 3 plus
Packaged by Turner - Corporate Logo
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

$ 1,335.76 USD
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Sale - Save 1%
$ 1,353.99

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

$ 1,335.76 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
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ECS Cooling System Refresh Kit - Level 3
ECS Cooling System Refresh Kit - Level 3
Packaged by Turner - Corporate Logo
T#:15710765
Part#: 07119904677-KT
Ships in 1 day
$ 1,019.31 USD
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$ 1,019.31 USD
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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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E30 Cooling System Refresh Kit - Level 3
E30 Cooling System Refresh Kit - Level 3
Packaged by Turner - Corporate Logo
T#:11726278
Part#: 11531722218KT1
Back Ordered
Sale - Save 2% $ 693.99

This product was last offered at the strikethrough price on
04-21-2026

$ 676.73 USD
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Sale - Save 2%
$ 693.99

This product was last offered at the strikethrough price on
04-21-2026

$ 676.73 USD
Add to Wish List
Ultimate cooling system overhaul kit - includes new radiator and all new hoses BMW engines do not respond well to overheating. Keep your E30 out of the "red zone" with a complete cooling system overhaul. While you're in there, it's an ideal time to replace the timing belt as well. Includes: Nissens radiator Water pump with gasket Thermostat with gasket Expansion tank Expansion tank cap Coolant level sensor 1 gallon of coolant Coolant hoses Hose clamps Timing belt Timing belt tensioner Radiator drain plug
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Dinan High-Performance Heat Exchanger - F22/23 F3X B46/48 B58
Dinan High-Performance Heat Exchanger - F22/23 F3X B46/48 B58 ...
Call In Or Chat For Best Price!
Dinan - Corporate Logo
T#:21045539
Part#: D780-0002
Ships in 5 Business Days
Sale - Save 10% $ 584.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 526.46 USD
Free Shipping
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Sale - Save 10%
$ 584.99

This product was last offered at the strikethrough price on
07-31-2026

$ 526.46 USD
Free Shipping
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The factory B4x/B58 heat exchanger is not built to cater to the rigorous demands often associated with a modified build. The thin core is easily overwhelmed with IAT's rising dramatically once pushed beyond a few successive WOT pulls or even a few minutes at the track. This elevation in temperature gives way to the factory ECU fail safes pulling timing and reducing overall power in order to keep the system from overheating to the point of permanent damage. On an application where enjoyment is directly attributed to pushing the platform to its limits this constraint to cooling presents a challenge for the automotive enthusiast. The Dinan B4x/B58 heat exchanger for the F2x/F3x chassis assists in mitigating these issues with a more robust core (48mm thick Dinan core vs. 27mm thick OEM core) that wields 78% more heat transfer surface area for improved cooling capacity. The significant increase in core thickness requires unique "L" shaped end tanks to be incorporated as well, which also contributes to the overall thermal mass (ability to absorb, store, and release heat) improvement beyond the OEM setup. With up to a 15° IAT delta recorded over stock the Dinan heat exchanger is ready, and able, to assist in extending your vehicles ability to deliver maximum performance time and time again for your driving enjoyment! Features: Average of 8° reduction in IAT's with a maximum reduction of 15° over 15 successive WOT pulls Reduces the tendency to heat soak / go in to limp mode 48mm thick Dinan cooler vs. 27mm thick stock cooler 78% more cooling surface area and volume than stock 100% TIG welded and pressure tested Installation hardware included (inclusive of xDrive specific transmission oil cooler brackets) NOTE: Due to the enlarged core and unique "L" shaped endtanks minor modification to the plastic core stack shroud may be required with some factory configurations ( particularly those with the optional OEM hot climate heat exchanger). Consult the installation PDF for full documentation on what exactly that entails. (https://documents.dinancars.com/d780-0002.pdf)
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BMS Heat Exchanger Upgrade - G-Chassis B58
BMS Heat Exchanger Upgrade - G-Chassis B58
Burger Motorsports - Corporate Logo
T#:5095728
Part#: GCHASB58HEATEXCH
Ships on Aug 28, 2026
$ 480.00 USD
Free Shipping on orders $49 and up
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$ 480.00 USD
Free Shipping on orders $49 and up
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This heat exchanger upgrade is a high-quality replacement that dramatically lowers engine oil and water temperatures by providing a 50% larger cooling surface than OEM. The benefits are most noticed during back to back runs at higher boost levels where the factory cooling capacity can be overwhelmed resulting in ignition timing pull and reduced turbo efficiency. Direct bolt-in installation.
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