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Packaged by Turner Cooling System Service

The cooling system is considered a weak point on several BMW generations. We put together cooling system service kits to help you get everything you need to refresh your system without any additional research. If you've done your research and know you only need one certain component, check out our Cooling category.
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Basic Cooling System Service Kit - E30 M20 2.5L 2.7L (09/1987+)
Basic Cooling System Service Kit - E30 M20 2.5L 2.7L (09/1987+) ...
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T#:557228
Part#: E30M20BCKT2
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Sale - Save 9% $ 324.99

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08-14-2026

$ 295.57 USD
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Sale - Save 9%
$ 324.99

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

$ 295.57 USD
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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Complete Cooling System Overhaul Package - 1999-2003 E39 525i 528i 530i
Complete Cooling System Overhaul Package - 1999-2003 E39 525i 528i 53...
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Packaged by Turner - Corporate Logo
T#:338701
Part#: TMS14415
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$ 708.99

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07-15-2026

Starting at $ 688.50 USD
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Starting at $ 688.50 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 1999-2000 528i with the M52TU engine and the 2001-2003 525i and 530i with the M54 engine. This package applies to cars equipped with either the manual or automatic transmission.

Much of the later E39 cooling system is strong and reliable and doesn't suffer the same types of problems associated with earlier E39 and E36 systems. But there is still the potential for serious cooling system and engine-related failures. Several of the primary cooling components are prone to failure within 80k miles (or less in many cases). 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. Our kit includes an OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat with housing, radiator cap, and new radiator hoses.

Optional items (which can be added below):
- Original BMW antifreeze
- Upgrade the water pump to a Stewart EMP High Performance pump
- Add a new coolant expansion tank (known for cracking)
- Add a new coolant level sensor (known for failing / throwing "check coolant" messages)
- Add a new coolant temp sensor (located in lower radiator hose and the seal ring may cause leaks if re-used)

This cooling system overhaul kit fits the following BMWs:
1999-2003 E39 BMW 525i 528i 530i
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Complete Cooling System Overhaul Package - 1997-1998 E39 540i
Complete Cooling System Overhaul Package - 1997-1998 E39 540i ...
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:338706
Part#: TMS14416
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Sale - Save 4% $ 660.99

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

Starting at $ 634.13 USD
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Sale - Save 4%
$ 660.99

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

Starting at $ 634.13 USD
Free Shipping
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 1997-1998 540i with the M62 4.4-liter engine (non-VAN0S). This package applies to cars equipped with either the manual or automatic transmission (select the appropriate parts in the menu below).

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.

Basic Kit Contents:
1711702969, radiator (OEM Behr)
11510393340, water pump (OEM)
13621703993, coolant temp sensor (located in the water pump housing)
11531437526, thermostat with housing and sensor (OEM Behr/Hella)
11531745595, upper radiator hose (OEM)
11531741409, lower radiator hose (OEM)
11531741404, expansion tank hose (OEM)
17111741167, expansion tank (OEM Behr)
17111742231, expansion tank cap (OEM Behr)

Cooling Kit Options:
540 Water Pump Options
(click to expand)
There are three versions of the water pump for the early 1997-1998 540i: OEM plastic impeller, updated metal impeller, and the more recently updated composite impeller. We recommend either the metal or composite impeller. These are what we use the most in our shop and what our technicians are comfortable with. On more recent models, BMW has used the composite impeller as original. There doesn't seem to be evidence of the plastic failing on this design (it did on the E36 3-series) but we feel most comfortable with the other options. Both the metal and composite manufacturers are OEM for BMW.

Use the options below to build your cooling package.

Buy as a package and save $$$!

This cooling system overhaul kit fits the following BMWs:
1997-1998 E39 BMW 540i
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