Packaged by Turner BMW Cooling System Parts & Accessories for BMW 3 Series E30 (1984-1991)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Comprehensive Coolant Hose Kit - E30 M20
For vehicles with production date from 09/1987
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T#:41897490
Part#: E30M20HSTKT
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05-03-2026

$ 327.81 USD
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Sale - Save 3%
$ 338.99

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$ 327.81 USD
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This Comprehensive Coolant Hose Kit – E30 is a must-have for any BMW M20 enthusiast looking to maintain cooling efficiency and avoid future breakdowns. Restore your classic E30’s performance and reliability with a hose kit built to last.
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Thermostat & Water Pump Kit - E30 325, 325e, 325i
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T#:30397424
Part#: 11531730470KT2
In Stock
Sale - Save 2% $ 174.99

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

$ 172.22 USD
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Sale - Save 2%
$ 174.99

This product was last offered at the strikethrough price on
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$ 172.22 USD
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Over time, the water pump in BMW vehicles becomes a common point of failure, typically requiring replacement around the 60,000-mile mark. To ensure optimal performance of your vehicle's cooling system, it's also advisable to replace the thermostat during this service. Turner aims to make this maintenance task easier with its all-in-one Water Pump & Thermostat Replacement Kit.

This comprehensive kit includes:

Water Pump - OEM Geba (11519071562) 80°C Thermostat - OEM MAHLE (11531713040) Thermostat Housing - URO Parts (11531730470) Thermostat Housing Gasket - Genuine BMW (11531722692) Antifreeze/Coolant, 1 Gallon - Genuine BMW (82141467704) Opt for this premium kit to ensure a thorough and reliable repair, extending the lifespan of your BMW's cooling system.

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Water Hose Set - E30 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:3449
Part#: 11531309667KIT
Ships in 1-2 days
$ 167.05 USD
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$ 167.05 USD
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This pacakge of six rubber cooling hoses for the E30 M3 includes most of the commonly replaced coolant lines on the S14. Set includes -
  • upper radiator hose from the large metal coolant pipe, #23 in the diagram
  • top thermostat hose to the large metal coolant pipe, #15 in the diagram
  • middle thermostat hose (T-shaped) to the small metal coolant pipe and to the water pump, #13 in the diagram
  • lower thermostat hose to the bottom of radiator, #22 in the diagram
  • lower radiator hose to coolant pipe, #24 in the diagram
  • expansion tank hose to the small metal coolant pipe, #17 in the diagram
    We use a mix if OE BMW and aftermarket hoses that we trust. This is the original E30 M3 Cooling Hose kit that we have been selling for 20 years. Looking for hose clamps too? We have OEM-style clamps for these too, select this in the options list below.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
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    Thermostat Replacement Kit - E28, E30, E34 M20B25/27
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:41289770
    Part#: 11531730470TKT
    In Stock
    $ 93.48 USD
    Free Shipping on orders $49 and up
    This BMW Thermostat Replacement Kit is the go-to choice for preserving the performance and reliability of your classic M20-powered BMW—keeping your engine running cool and smooth mile after mile.
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    Basic Cooling System Service Kit - E30 M20 2.5L 2.7L (up to 09/1987) ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:557223
    Part#: E30M20BCKT
    Back Ordered
    $ 433.99

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

    $ 422.99 USD
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    $ 422.99 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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    Turner OEM Water Hose Set - E30 M3
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:338252
    Part#: 11531309667KIT
    Ships in 1-2 days
    Sale - Save 3% $ 212.99

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

    Starting at $ 206.20 USD
    Free Shipping
    Sale - Save 3%
    $ 212.99

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

    Starting at $ 206.20 USD
    Free Shipping
    This pacakge of six rubber cooling hoses for the E30 M3 includes most of the commonly replaced coolant lines on the S14. Set includes -
  • upper radiator hose from the large metal coolant pipe, #23 in the diagram
  • top thermostat hose to the large metal coolant pipe, #15 in the diagram
  • middle thermostat hose (T-shaped) to the small metal coolant pipe and to the water pump, #13 in the diagram
  • lower thermostat hose to the bottom of radiator, #22 in the diagram
  • lower radiator hose to coolant pipe, #24 in the diagram
  • expansion tank hose to the small metal coolant pipe, #17 in the diagram
    We use a mix if OE BMW and aftermarket hoses that we trust. This is the original E30 M3 Cooling Hose kit that we have been selling for 20 years. Looking for hose clamps too? We have OEM-style clamps for these too, select this in the options list below.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
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    Complete Cooling System Overhaul Package - 1988-1991 E30 M3
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:338650
    Part#: TMS16418
    Ships in 1-2 days
    Starting at $ 708.99 USD
    Starting at $ 708.99 USD
    This cooling package for the E30 M3 consists of all of the major components on the S14's cooling system. There are no major weak points to the E30's cooling system, unless you count skipped maintenance. The entire system is serviceable in individual components so you don't need to buy a complete package of parts. Many of the indivdual parts are on our site but we have setup this package to cover all or most of what you would need to perform a major overhaul. This overhaul package consists of an Genuine BMW radiator and then you build the package from there. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the Original BMW antifreeze to finish off the job.

    Any problems with the cooling system are likely electrical. Sensors become corroded and fail over time which will send the incorrect signal to the corresponding unit, including the engine computer. Diagnosis of electrical type problems is easy and repair with the OEM Bosch or OE BMW sensors is not too expensive for a car like this. Electrical connections, particularly solder joints, can also become brittle and fail. These are not helped by the intense vibrations of the S14.

    Top Turner Tip for a healthy S14!
    E30 M3s always seem to have cooling problems at the most inconvenient time. If the temp gauge starts rising in the summer months first check and make sure your auxiliary cooling fan is working if it's not it's most likely the switch or the wiring going to the switch. Also remember that the E30 instrument conductor plate can make the gauge read whacky try tapping the gauge if it seems like it's acting up. When it's time to do a water pump (which weeps through a hole on the bottom before it goes completely) take a good look at the radiator too its not expensive and you have to remove it to install the pump anyway.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1988-1991 E30 BMW M3
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    Water Pump & Thermostat Kit - BMW M42
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:30198008
    Part#: 11537511580KT5
    Ships on Jun 8, 2026
    Sale - Save 3% $ 118.99

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

    $ 115.17 USD
    Free Shipping on orders $49 and up
    Sale - Save 3%
    $ 118.99

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

    $ 115.17 USD
    Free Shipping on orders $49 and up

    Regular maintenance is key to keeping your BMW running smoothly, and the water pump is a critical component that should be serviced every 60,000 miles. To ensure the overall efficiency of your cooling system, it's also recommended to replace the thermostat at the same time. Turner Motorsport has created a streamlined solution with their Water Pump & Thermostat Replacement Kit, making your cooling system upgrade simple and effective.

    Kit Includes:

    Meyle Water Pump with Metal Impeller (11510393338) VEMO Thermostat - 88°C (11537511580) Elring Thermostat Housing Flange Gasket (11531721172) Genuine BMW Coolant/Antifreeze (82141467704) Benefits:

    Enhanced Cooling Efficiency: Earlier opening thermostat improves temperature control under performance conditions. Reliable Components: Includes high-quality parts from Meyle and VEMO, known for their durability and reliability. Complete Solution: All necessary components for a comprehensive cooling system refresh in one convenient kit. Performance-Driven Design: Ideal for those looking to maintain and enhance the cooling capabilities of their S55 engine.

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    Cooling System overhaul Kit - E30 325i/is/ix/e From 1988
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:554135
    Part#: 11531722218KT3
    Back Ordered
    Sale - Save 2% $ 653.99

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

    $ 642.30 USD
    Sale - Save 2%
    $ 653.99

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

    $ 642.30 USD

    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 E30 325 with the M20 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 water pump fits the following BMWs: 
    1998-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix 

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    Stock Replacement Radiator - E30 M3
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:338019
    Part#: 17112225592
    Back Ordered
    Starting at $ 347.99 USD
    Starting at $ 347.99 USD
    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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    Water Pump - E30 M3
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:337980
    Part#: 11511315211
    Back Ordered
    Starting at $ 299.99 USD
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    Starting at $ 299.99 USD
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    This is the stock replacement water pump for the E30 M3. This is the Genuine BMW pump and includes a new OE BMW gasket. It's always a good idea to have one as a spare. Even if it sits on your shelf for awhile it's going to be used at some point (and prices for Genuine E30 M3 parts aren't getting any lower). Aftermarket pumps have been in short supply and the quality hasn't been as good as the Original BMW pump so we have decided to stop offering aftermarket brands like Laso or Saleri. This is the Genuine BMW part, straight from BMW.

    This item fits the following BMWs:
    1987-1991 E30 BMW M3
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    Complete Cooling System Overhaul Package - 1988-1992 E30 325i/is/ic ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:339938
    Part#: TMS16415
    In Stock
    $ 336.99

    This product was last offered at the strikethrough price on
    12-15-2025

    Starting at $ 308.98 USD
    Starting at $ 308.98 USD
    This Cooling Kit for the 1988-1992 E30 325i covers all of the major replacement parts for the original cooling system. We start with an OEM Behr radiator and then you choose the additional parts you need to replace next. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the correct Original BMW antifreeze to finish off the job.

    Of the systems in your E30, the cooling system is not where you want to let slide or skip maintenance. Almost nothing will ruin your day more than an overheating engine and it's usually at the absolute worse time. Maintaining the cooling system is easy and you can do most or all of the work yourself with ordinary tools. There's no reason not to address a leaky or out of date cooling system right away.

    To save you time and money, we recommend replacing major components with related parts.
    Radiator (manual: 17112241912; automatic: 17112241913)
    Upper (#11531722218) and lower (#11531718980) hoses to thermostat.
    Thermostat with o-ring and housing gasket (#11531713040).
    Water pump with timing belt and tensioner (#09-9320-000).
    Associated hoses with each of the above.
    V-belts with any of the above.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1988-1992 E30 BMW 325i 325ic 325is
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    Cooling System overhaul Kit - E30 318i 318is
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:554545
    Part#: 17111712835KT5
    Ships in 6 Business Days
    Sale - Save 4% $ 356.99

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

    $ 344.16 USD
    Free Shipping
    Sale - Save 4%
    $ 356.99

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

    $ 344.16 USD
    Free Shipping

    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 E30 with the M42 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 kit fits the following BMWs:

    318i 318is M42

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    Basic Cooling System Service Kit - E30 M42 1.8L
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:557225
    Part#: E30M42BCKT
    Ships in 10 Business Days
    Sale - Save 3% $ 194.99

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

    $ 188.97 USD
    Free Shipping
    Sale - Save 3%
    $ 194.99

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

    $ 188.97 USD
    Free Shipping

    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.

    Show More Show Less
    Complete Cooling System Overhaul Package - 1987 E30 325i/is/ic ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:340132
    Part#: TMS16413
    Ships on Jul 21, 2026
    $ 283.99

    This product was last offered at the strikethrough price on
    05-17-2026

    Starting at $ 272.98 USD
    Starting at $ 272.98 USD
    This Cooling Kit for the 1987 E30 325i covers all of the major replacement parts for the original cooling system. We start with an OEM Behr radiator and then you choose the additional parts you need to replace next. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the correct Original BMW antifreeze to finish off the job.

    Of the systems in your E30, the cooling system is not where you want to let slide or skip maintenance. Almost nothing will ruin your day more than an overheating engine and it's usually at the absolute worse time. Maintaining the cooling system is easy and you can do most or all of the work yourself with ordinary tools. There's no reason not to address a leaky or out of date cooling system right away.

    Top Turner Tip!
    On the 1987 325i, pay particular attention to the alternator fan blades and the clearance to the lower radiator hose. As the engine shifts on worn motor mounts, and the alternator twists on worn bushings, the cooling blades can slice right through the hose. Replace the alternator bushings and use our motor mount reinforcements. Or convert the whole system to the 1988+ cooling system which moves the lower hose to the other side of the radiator.

    To save you time and money, we recommend replacing major components with related parts.
    Radiator (manual: #17111468074; automatic: #17111468075)
    Upper (#11531286914) and lower (#11531279895) hoses to thermostat.
    Thermostat with o-ring and housing gasket (#11531713040).
    Water pump (#11519071562)
    Timing belt and tensioner (#09-9320-000).
    Associated hoses with each of the above.
     - hose from water pump to thermostat (#11531287651)
     - hose from expansion tank to water pump (#11531289257)
     - hose from throttle body to thermostat (#13541705568)
    V-belts with any of the above.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1987 E30 BMW 325i 325ic 325is
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    Cooling System overhaul Kit - E30 325i/is/ix/e upto 1988
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:554131
    Part#: 11531286914KT2
    Back Ordered
    $ 957.99

    This product was last offered at the strikethrough price on
    05-17-2026

    $ 945.99 USD
    $ 945.99 USD

    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 E30 325 with the M20 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 water pump fits the following BMWs: 
    1986-1988 E30 BMW 325e 325es 325i 325ic 325is 325ix 

    Show More Show Less

    Basic Cooling System Service Kit - E30 M20 2.5L 2.7L (09/1987+) ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:557228
    Part#: E30M20BCKT2
    Back Ordered
    Sale - Save 3% $ 309.99

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

    $ 299.26 USD
    Free Shipping
    Sale - Save 3%
    $ 309.99

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

    $ 299.26 USD
    Free Shipping

    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.

    Show More Show Less