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BMW Cooling System Parts & Accessories

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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DO88 - Corporate Logo
T#:13891856
Part#: OC100
In Stock at Vendor
$ 782.99 USD
Free Shipping
$ 782.99 USD
Free Shipping
The Beloved S65 V8 from BMW is well known and claimed to be one of the best engines ever introduced by the brand, but just like any other powertrain, it comes with its own set of issues. One of these issues is cooling issues. The team at DO88 took this opportunity to create and engineer a newly upgraded oil cooler to eliminate all of the previous issues. Boasting a 65% increase in core volume, a 59% larger active cooling area, and a 13.9% higher oil volume, this cooler definitely outperforms its OE counterpart. Nonetheless, this oil cooler is the perfect upgrade to your E9X M3!
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DO88 - Corporate Logo
T#:13891817
Part#: WC190
In Stock at Vendor
$ 712.00 USD
Free Shipping
$ 712.00 USD
Free Shipping
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your N55 engine. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 14% increase in core volume and 8% lower coolant temps, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:34885395
Part#: BIG-M3-DCT
In Stock
$ 3,041.99

This product was last offered at the strikethrough price on
10-03-2026

$ 2,799.99 USD
Free Shipping
$ 2,799.99 USD
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Do88 - BigPack BMW M3 E90/E92 DKG DCT offers a premium solution for BMW enthusiasts seeking optimal cooling performance for their high-performance M3 models. Designed specifically for the BMW M3 E90 and E92 equipped with the DKG/DCT transmission, this complete cooling package by Do88 provides significant improvements in engine and transmission temperatures, ensuring peak performance and reliability under extreme conditions. Ideal for both street and track applications, this package offers unparalleled benefits for any driver looking to enhance their BMW’s performance.

Key Features:

Comprehensive cooling solution designed for BMW M3 E90 and E92 models with DKG/DCT transmission Includes - M3 engine oil cooler, M3 DCT / DKG oil cooler, M3 power steering cooler, M3 radiator Significantly reduces heat levels, allowing for sustained performance in intense driving scenarios Direct-fit design for straightforward installation without extensive modifications Engineered to withstand high-performance demands for both street and track use The Do88 BigPack BMW M3 E90/E92 DKG DCT cooling kit is a top choice for enthusiasts and professional drivers who need reliable and robust performance. Designed with precision and superior materials, this package ensures your BMW M3 remains cool under pressure, making it an essential upgrade for any Turner Motorsport enthusiast aiming to achieve the ultimate driving experience.

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Active Autowerke - Corporate Logo
T#:397222
Part#: 14-009
Ships in 10 Business Days
$ 56.99 USD
Free Shipping on orders $49 and up
Plastic thermostat housing cracked on your M50?

Here are your choices: you can wait for the plastic factory thermostat housing cover to break and cause major overheating. (Even with a new stock cover, it won’t take long.) Or you can install a thoughtfully engineered all-aluminum thermostat housing cover from Active Autowerke and never experience this type of failure again. Currently there is no factory upgraded part to this problem. This is an aluminum extruded part that has all of the openings machine properly to fit like factory; from the mounting bolt holes, the seating of the thermostat to the sealing opening for the ORANGE gasket. Forged to exact factory tolerances, everything fits and this unit is a true easy bolt-on – especially suited for racing or load conditions like heavy traffic, where engine temp can rise rapidly. The housing is guaranteed never to break from overheating or over-tightening, and its CNC machined surface ensures a precise seat.

Unit comes complete with a new ORANGE sealing gasket; a new thermostat is recommended but not included.
For hotter climates, a 71 degree thermostat is recommended over the 82 degree unit.

Anything and everything BMW is the mantra at Active Autowerke. Since 1981 they have been serving the BMW community with custom turbocharger kits to a myriad of other innovative and inspiring performance parts.
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DO88 - Corporate Logo
T#:23913952
Part#: OC-110
In Stock at Vendor
$ 1,299.99 USD
Free Shipping on orders $49 and up
The do88 oil cooler boasts substantial advantages over the original: 217% larger core volume: 2208 cm3 vs. 696 cm3 178% greater active cooling area: 3456 cm2 vs. 1242 cm2 18% lower oil temperature past the oil cooler: 74°C vs. 90°C 110% larger oil volume: 6.5dl vs. 3.1dl Convenient drop-in fitment for the specified cars.
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DO88 - Corporate Logo
T#:13891812
Part#: WC290
Ships on Oct 28, 2026
$ 540.99 USD
$ 540.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your N55 engine. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 23% increase in core volume and a 43% bigger coolant volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:35761627
Part#: BIG-M3-MAN
In Stock
$ 1,972.99

This product was last offered at the strikethrough price on
10-01-2026

$ 1,799.99 USD
Free Shipping on orders $49 and up
$ 1,799.99 USD
Free Shipping on orders $49 and up
The BigPack Kit for the E90/E92 M3 Includes - M3 engine oil cooler - M3 power steering cooler - M3 radiator
Active Autowerke - Corporate Logo
T#:397219
Part#: 14-010
Ships in 1 Business Day
5% off MSRP $ 259.00

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

$ 246.99 USD
Free Shipping
5% off MSRP
$ 259.00

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

$ 246.99 USD
Free Shipping

When you push your powerplant, thermodynamics push right back. The toll of high performance is higher heat load – and many stock components begin to complain. But Active Autowerke has you covered - this upgraded fan clutch increases viscous coupling of cooling fan blade speed to water pump speed, yielding increased airflow through the radiator for more efficient cooling. A simple, yet wonderful, thing.

This product fits the following BMWs:
1992-1999 E36 323i 325i 328i 330i M3
1998-2006 E46 323i 325i 328i 330i M3

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DO88 - Corporate Logo
T#:13924825
Part#: DO88KIT94S
In Stock
$ 291.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13891842
Part#: OC150
Ships on Oct 28, 2026
$ 749.99 USD
Free Shipping on orders $49 and up
With a 185% bigger core volume, 50% bigger cooling area, and a 79% higher oil volume, this oil cooler compensates on no fronts. Built for the track but just as capable on the road, DO88's upgraded oil cooler for the E46 M3 gives you maximum performance and compromises nowhere.
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DO88 - Corporate Logo
T#:13793026
Part#: WC370
In Stock at Vendor
$ 642.99 USD
Free Shipping on orders $49 and up
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your N54/N55 engine. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 29% increase in core volume and a 3% larger frontal surface area, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:13793035
Part#: WC360
In Stock at Vendor
$ 976.99 USD
$ 976.99 USD
This D088 intercooler boasts an 18% frontal surface increase allowing better airflow and increased cooling helping to maximize performance. - Greater core volume: 3393cm3 (1693cm3), 100% larger! - Greater frontal surface area: 499cm2 (423cm2), 18% larger! - Lower post intercooler air temperature at same conditions: 34°C (39°C), 5°C lower!* - High efficient core with 8mm fin height of multi-louvered design. - Multi-channel core tubes
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DO88 - Corporate Logo
T#:14155764
Part#: KIT222S
In Stock
$ 687.99 USD
Free Shipping on orders $49 and up
These hoses are entirely manufactured in high quality silicone for best finish and durability. With three to five layers of armory, depending of the inner diameter, the hoses withstand high pressure rates and high temperatures for a long time. The original hoses are manufactured in rubber that not seldom cracks from age. This is the durable solution for you that in addition improves the looks!
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DO88 - Corporate Logo
T#:13891851
Part#: OC120E46
In Stock
$ 646.99 USD
Free Shipping on orders $49 and up
This racing oil cooler shines in low-pressure situations, for example, power steering oil cooling or gearbox oil cooling. This oil cooler comes ready to install with hardware.
DO88 - Corporate Logo
T#:13924827
Part#: DO88KIT94B
In Stock
$ 291.99

This product was last offered at the strikethrough price on
08-07-2026

$ 250.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 291.99

This product was last offered at the strikethrough price on
08-07-2026

$ 250.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13891809
Part#: WC310S
Ships on Oct 28, 2026
$ 735.99 USD
$ 735.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your E46 M3. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 17% increase in core volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:13891852
Part#: OC120
In Stock at Vendor
$ 646.99 USD
Free Shipping
$ 646.99 USD
Free Shipping
Boasting a 261% increase in core volume, a 100% increase in active cooling area, and a 100% larger oil volume, this power steering oil cooler is an absolute no-brainer. The second one installs wider wheels or stickier tires, the steering servo motor will start getting a run for its money, leaving the opportunity for heat soak. With our of development and rigorous testing, this oil cooler suits track use just as much as street use and is the perfect upgrade for your vehicle!
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DO88 - Corporate Logo
T#:43615041
Part#: OC-210
Ships on Oct 28, 2026
$ 684.99 USD
$ 684.99 USD

Active Autowerke - Corporate Logo
T#:2302749
Part#: 14-016
Ships in 10 Business Days
$ 141.99 USD
Free Shipping
$ 141.99 USD
Free Shipping
CNC machined coolant/water thermostat bypass tube to improve flow on and off the track. Easy plug and play installation and a durable anodized coating make this a simple and reliable temperature control solution.
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DO88 - Corporate Logo
T#:14155765
Part#: KIT219S
Ships on Oct 28, 2026
$ 360.99 USD
Free Shipping on orders $49 and up
These hoses are entirely manufactured in high-quality silicone for best finish and durability. With three to five layers of armory, depending of the inner diameter, the hoses withstand high-pressure rates and high temperatures for a long time. The original hoses are manufactured in rubber that not seldom cracks from age. This is the durable solution for you that in addition improves the looks!
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DO88 - Corporate Logo
T#:13891810
Part#: WC310R
Ships on Oct 28, 2026
$ 735.99 USD
$ 735.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your E46 M3. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 17% increase in core volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:13805538
Part#: WC350
In Stock at Vendor
$ 683.99 USD
$ 683.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your M2C or F8X M3/M4. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 75% increase in core volume and a 48% larger frontal surface area, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:13891855
Part#: OC110
In Stock at Vendor
$ 1,299.99 USD
Free Shipping
$ 1,299.99 USD
Free Shipping
With a 217% bigger core volume, 178% bigger cooling area, and a 110% higher oil volume, this oil cooler compensates on no fronts. Built for the track but just as capable on the road, DO88's upgraded oil cooler for the E90/E92 M3 gives you maximum performance and compromises nowhere.
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DO88 - Corporate Logo
T#:13924861
Part#: DO88KIT130S
Ships on Oct 28, 2026
$ 342.99 USD
Free Shipping on orders $49 and up

BMW E30 S14 Coolant Hoses - Black - DO88 are engineered from high-quality silicone, offering superior durability and reliability for the BMW E30 S14. With three to five layers of reinforced silicone, these hoses are built to withstand high pressure and extreme temperatures, ensuring long-lasting performance.

  • High-Quality Silicone Construction: Made from premium silicone, providing excellent resistance to heat and pressure.
  • Reinforced Layers: Features three to five layers of armor, enhancing durability and reliability under demanding conditions.
  • Prevents Cracking and Leaking: Upgrades from OE hoses that are prone to cracking and leaking, ensuring a secure and leak-proof fit.
  • Extended Service Life: Designed to handle high temperatures and pressures for prolonged use, reducing the need for frequent replacements.
  • Enhanced Performance: Improves cooling system efficiency, maintaining optimal engine performance and reliability.

Turner Motorsport’s BMW E30 S14 Coolant Hoses - Black - DO88 offer a high-quality replacement solution, ensuring your BMW E30 S14 operates smoothly and reliably.

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DO88 - Corporate Logo
T#:13891847
Part#: OC130
In Stock at Vendor
$ 742.99 USD
Free Shipping on orders $49 and up

BMW F87 M2 DO88 Racing Oil Cooler is designed to significantly enhance engine cooling performance. Featuring a 134% larger core volume, 84% increased cooling area, and a 25% higher oil capacity, this high-performance oil cooler delivers superior cooling efficiency. Engineered for both track and road use, the DO88 Racing Oil Cooler ensures optimal performance without compromising on quality.

  • Increased Core Volume: 134% larger core volume for improved cooling capacity.
  • Expanded Cooling Area: 84% larger cooling area for enhanced heat dissipation.
  • Higher Oil Volume: 25% increased oil volume to maintain optimal temperatures.
  • Track and Road Ready: Built to handle high-performance demands on and off the track.
  • Top-Quality Engineering: Designed by DO88 for maximum durability and efficiency.
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DO88 - Corporate Logo
T#:13891841
Part#: OC170
In Stock at Vendor
$ 672.99 USD
Free Shipping on orders $49 and up
The OE oil cooler on the F8X M2C/M3/M4 is prone to debris damaging it leading to catastrophic oil leaks and other not-good scenarios. DO88 addressed this issue with an oil cooler upgrade that is sure to stand the test of time with its rigid, durable design also boasting some impressive performance figures like 20% larger frontal surface area, and 63% greater core volume, leaving you with not only a durable option but a high-performance option for your F8X BMW!
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DO88 - Corporate Logo
T#:13924826
Part#: DO88KIT94R
Ships on Oct 28, 2026
$ 291.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13924829
Part#: DO88KIT70S
Ships on Oct 28, 2026
$ 256.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13924856
Part#: DO88KIT175S
Ships on Oct 28, 2026
$ 304.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armor, the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13924862
Part#: DO88KIT130R
Ships on Oct 28, 2026
$ 342.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armor, the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13924859
Part#: DO88KIT175R
Ships on Oct 28, 2026
$ 304.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armor, the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13924864
Part#: DO88KIT130B
Ships on Oct 28, 2026
$ 342.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armor, the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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Active Autowerke - Corporate Logo
T#:5886968
Part#: 15-012
Ships in 3 Business Days
$ 2,849.99 USD
Free Shipping
$ 2,849.99 USD
Free Shipping
BMW's S55 motor is a modern marvel but one weak point, which Active identified is the entire cooling system for the intake which comprises the charge pipe, the aftercooler and the heat exchanger (or radiator). Finally there is a S55 aftercooler kit upgrade that is good enough to carry the Active Autowerke brand. Years of success in developing cars for motorsport has allowed Active to leverage its expertise to the top-mount charge air cooler on the F80 M3, F82 M4 and F87 M2 Competition. This aftercooler was made for the S55 and crafted using only high-grade aluminum to outperform the factory aftercooler in all situations from everyday driving to the toughest racing. The factory cooler was built to support a specific power target and environment. Many of you have increased the performance of the S55 which quickly overwhelms the stock cooler leading to heat soak and higher intake air temperatures which triggers the ECU to downgrade the performance until cooler air returns. Active's focus was not on a mass-market aesthetic add-on but a properly engineered improvement over the existing hardware. Active uses a tube-and-fin core designed specifically for the S55 and included turbulators to maximize the cooling efficiency in as small a package as possible. The end tanks are billet machined aluminum, not cast, folded, or bonded and ensure even distribution of the water throughout the internal aftercooler cores. High precision fittings, CNC machining, and TIG welding throughout ensures the highest quality construction to prevent pressure loss, and the lowest weight, in a bolt-on replacement. But Active also didn’t leave the aesthetics by the wayside as we dip the visible top of the aftercooler in a carbon fiber coating giving your installed cooling system a decidedly top market look to match the improved cooling performance. The Active silicone charge pipes for the F80 M3, F82/F83 M4 and the F87 M2 Competition improve the flow over the stock, compressed plastic pipes. The Active Silicone Charge Pipes allow you to maximize power on your F8X by securing all the boost that your S55 is making. These pipes replace the hot-side pipes leaving the turbos and into the top-mount aftercooler. The stock S55 charge pipes are notorious for developing hairline fractures at their plastic seams. These fractures or cracks are unnoticeable to the naked eye, but under boost pressure they open up leaking the desired charged air into the engine bay, and consequently can rob your S55 of it's full power potential. In addition, these leaks can trigger your S55's turbochargers to work harder to hit and maintain target boost pressure, potentially wearing them out sooner. Active uses silicone in this area because it will not contribute to heat soak and it's easier to mold for the correct clearances. Active uses a 5-layer silicone hose with all needed adapters and stainless hose clamps included. It fits perfectly with our CNC’d top-mount cooler.
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M7 Speed - Corporate Logo
T#:386325
Part#: 53-3M7104
Ships in 1 Business Day
Sale - Save 6% $ 49.99

This product was last offered at the strikethrough price on
08-31-2026

$ 47.03 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 49.99

This product was last offered at the strikethrough price on
08-31-2026

$ 47.03 USD
Free Shipping on orders $49 and up

Have you ever noticed how crisp and responsive your MINI was after that initial warm-up period, and wanted to keep that feeling for the rest of the day? This 180° F Thermostat is the solution. Not only does the engine maintain its fresh-start power, but also the under-hood temperatures are greatly diminished (see comparison table below). Now when your car sits after a hard run it won't cook and dry out everything under the hood as bad as it did in the stock configuration. This is great for the MINI owner that lives in a hot climate, or those that push their cars hard at the track or local twisty road.

Please Note: This thermostat does not include a replacement gasket. Reuse the gasket from the OEM thermostat.

Cold Weather Alert: If you encounter weather below 50º F or 10º C, please be aware that the ECU could throw a “check engine” light. This is no cause for alarm as the sensors are registering an anomaly and the thermostat is not harming the engine. The “check engine” light can be reset with a diagnostic tool or left as is. Please call if you have questions.
 

Test ParametersThermostat Temp OriginalThermostat Temp M7180Delta (°F)

Intercooler Manifold9870-28

Upper Coolant Hose190179-11

Supercharger at Pulley Shaft Housing178160-18

Head at Thermostat174153-21

Idle w A/C on214185-29

Coolant Temp During Hard Driving212180-32

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Beru - Corporate Logo
T#:596874
Part#: 12621288158
Ships in 1-2 days
$ 44.99 USD
Free Shipping on orders $49 and up
$ 44.99 USD
Free Shipping on orders $49 and up
M14x1.5 Thread. Your vehicle is equipped with numerous gauges to allow you to have a better idea of what is going on under the hood. By monitoring these gauges, you can prevent premature engine damage due to low oil pressure or high coolant temperatures. If one isn't functional though, you are in the dark as far as that system goes. One of the most vital is coolant temperature. Replace the sensor to get your gauge working properly again.
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DO88 - Corporate Logo
T#:13924860
Part#: DO88KIT175B
Ships on Oct 28, 2026
$ 304.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armor, the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 - Corporate Logo
T#:13891811
Part#: WC310B
Ships on Oct 28, 2026
$ 735.99 USD
$ 735.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your E46 M3. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 17% increase in core volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:13891813
Part#: WC280
In Stock at Vendor
$ 608.99 USD
$ 608.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your N55 engine. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 172% increase in core volume and a 228% bigger coolant volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:13924830
Part#: DO88KIT70B
Back Ordered
$ 256.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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