BMW Radiators for BMW 5 Series E39 (1996-2003)

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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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CSF High Performance Aluminum Radiator - E39 540i M5 - Manual Transmi...
For vehicles with manual transmission and production date from 09/1998
2X Entries Into Our F80 M3 Sweepstakes
CSF - Corporate Logo
T#:401086
Part#: 7064
In Stock
$ 689.00 USD
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$ 689.00 USD
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CSF is one of the premier cooling product specialists available on the market thanks to designs such as their High Performance Aluminum Radiators. Using a single pass designed core, this radiator gives you all the cooling you could ever need. Paired with these radiators are CNC machined brackets and corrosion resistant hardware that allow final installation to have a same as stock fitment! This enables you to have much higher cooling without having to cut away any metal or delete any important components just for the sake of lower coolant temperatures. 

Features:

  • Two-row, triple-pass design radiator core
  • CNC machined mounting brackets
  • All needed hardware included
  • Hand polished aluminum with a mirror-like finish
  • Stock fitment prevents modification to engine bay

Fits the following BMWs:
09/1998+ E39 BMW 540i, M5 with a manual transmission

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CSF OE Style Radiator - E39 525/528/530/540
For vehicles with production date from 09/1998 - Fits Auto or Manual Models For vehicles with production date from 09/1998 and a manual transmission Fits Auto or Manual Models
2X Entries Into Our F80 M3 Sweepstakes
CSF - Corporate Logo
T#:638785
Part#: 2919
Ships in 3 Business Days
$ 94.99 USD
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$ 94.99 USD
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CSF radiators are designed and built to High-Performance Standards & sold worldwide for over 50 years - over 30 Million Units Sold! CSF's radiators are carefully engineered and Wind Tunnel tested for Cooling Performance Validation. CSF has over 10,000 different models of radiators that they manufacture and supply for all the leading brands of vehicles on the road.
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CSF OE Style Radiator - E39 528i (up to 09/1998)
For vehicles with production date up to 09/1998
2X Entries Into Our F80 M3 Sweepstakes
CSF - Corporate Logo
T#:638786
Part#: 2918
In Stock
$ 113.99 USD
Free Shipping
$ 113.99 USD
Free Shipping
CSF radiators are designed and built to High-Performance Standards & sold worldwide for over 50 years - over 30 Million Units Sold! CSF's radiators are carefully engineered and Wind Tunnel tested for Cooling Performance Validation. CSF has over 10,000 different models of radiators that they manufacture and supply for all the leading brands of vehicles on the road.
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Mahle-Behr - Corporate Logo
T#:1341
Part#: 17111436062
Ships in 2 Business Days
$ 327.54

This product was last offered at the strikethrough price on
08-14-2026

$ 277.71 USD
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$ 277.71 USD
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OEM BEHR brand replacement radiator for all E39 M5, as produced in 2000, 2001, 2002 and 2003. This radiator is made by BEHR, an original equipment supplier to BMW. BEHR radiators are what we use our own BMWs and customer installs. We've found the BEHR radiator has the highest lifespan, least amount of manufacturing defects, and best continued cooling performance on the E39 M5. Simply put, you do not want anything else in your M5 but a BEHR brand radiator.

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.​

This BEHR radiator fits the following BMWs:
2000-2003 E39 M5 sedan
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Genuine BMW - Corporate Logo
T#:15154
Part#: 17217505823
Ships in 7 Business Days
3% off MSRP $ 381.99

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

$ 371.99 USD
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3% off MSRP
$ 381.99

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

$ 371.99 USD
Free Shipping
Part of any cooling system overhaul on the 540i or 740i/iL should include a service for the automatic transmission heat exchanger (cooler). This block takes coolant from the radiator and uses it to cool the oil for the transmission. A blocked or faulty transmission cooler can lead to major transmission faults, harder or hesitating shifts, or even complete transmission failure. We recommend getting 2 new o-rings while replacing the the heat exchanger. il As part of every cooling system service we recommend cleaning or replacing the heat exchanger itself and the replacement of the hoses leading to it (see separate product).

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.​

This item fits the following BMWs:
1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
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Transmission Oil Cooler - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:568703
Part#: 17217505823
Ships in 2 Business Days
$ 70.99 USD
Free Shipping
$ 70.99 USD
Free Shipping
The heat exchanger keeps your engine oil temperature at a safe level. Without it, oil temperatures could sky rocket causing shearing and potentially internal engine component failure.