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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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Turner Motorsport - Corporate Logo
T#:57543703
Part#: 059198LA03KT
In Stock
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$ 62.99 USD
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Upgrade your cooling system setup with our Heavy Duty Radiator Mounting Brackets, engineered to deliver maximum structural support and a refined engine-bay aesthetic. After decades of heat cycles and hard driving, your E30's factory plastic mounts inevitably become brittle, faded, and prone to cracking, risking damage to your radiator. Our radiator mount upgrade completely replaces those tired OEM units with a high-strength alternative built to handle the rigors of spirited driving, track days, and engine swaps. Whether you are performing a full cooling system refresh or executing an M5X swap that utilizes an E36-style radiator, these brackets provide the ideal balance of precision fitment and rugged dependability.

Crafted with a premium brushed stainless steel finish, this kit does more than secure your radiator; it radically improves the visual appeal under the hood by swapping out cheap, weathered plastic for durable steel hardware. Designed as a true direct bolt-on solution, the brackets align seamlessly with factory mounting locations, eliminating the need for frustrating custom fabrication, cutting, or drilling. They clamp down firmly to eliminate unwanted radiator movement, ensuring your cooling stack remains locked in place under heavy vibration.

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Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55749607
Part#: 17132284600
In Stock
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$ 168.99 USD
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This URO Coolant Expansion Tank is a budget-conscious alternative that's designed to handle the rigorous fluid expansion and pressure demands of your M car.
Turbo Coolant Line
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55749608
Part#: 11538602578
In Stock
New Item
$ 43.99 USD
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Keep your turbocharger supplied with coolant and shield your engine bay from costly leaks with this replacement Turbocharger Coolant Line from URO Parts.

URO Lower Radiator Hose - E83 - N52
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55821698
Part#: 17123424499
Ships in 2 Business Days
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$ 33.99 USD
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This URO molded lower hose is engineered from advanced Electro-Chemical Degradation (ECD) resistant material, preventing interior breakdown and future leaks

Genuine BMW - Corporate Logo
T#:55245856
Part#: 0711990XXKTKT
Ships in 1-2 days
New Item
$ 35.31 USD
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Turner Motorsport offers this Genuine BMW Hex Bolt and Washer Kit to keep your chassis maintenance or engine refresh completely up to factory standard.
Coolant Thermostat
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55785651
Part#: 17112249366
In Stock
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$ 25.99 USD
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The URO Parts replacement coolant thermostat is a cost-effective, high-quality solution to get your cooling system back to factory-spec operational standards.

Genuine BMW - Corporate Logo
T#:55317651
Part#: 171178RLSKT
Ships in 2 Business Days
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$ 56.33 USD
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Keep your cooling system locked down on the street and the track with the Turner Motorsports Radiator Lower Support & Bushing Kit.
Genuine BMW - Corporate Logo
T#:55317676
Part#: 11531CKT
Ships in 2 Business Days
New Item
$ 74.07 USD
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Preventative cooling system maintenance is vital, and this complete hose and clamp overhaul kit is designed to eliminate weak points before they fail.

URO Hose Clamp - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:54388406
Part#: 17127639895
Ships in 2 Business Days
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$ 16.99 USD
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Located on the bottom coolant hose

URO Coolant Expansion Tank Cap - G2x G4x G6x G7x
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56760937
Part#: 17138665638
Ships in 2 Business Days
New Item
$ 25.99 USD
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A compromised expansion tank cap can lead to loss of pressure, fluid leaks, and dangerous engine overheating. This URO Coolant Reservoir Cap provides a dependable, cost effective solution to restore factory pressure thresholds on modern G-Chassis BMW models.
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URO Turbo Coolant Return Line - BMW Gen1 B58 3.0L
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:53079363
Part#: 11538666857
In Stock
New Item
$ 65.99 USD
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Replacement coolant return hose running from the turbocharger to the auxiliary water pump.
URO Engine Coolant Hose - BMW E70 X5
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:52586666
Part#: 17127536236
Ships in 2 Business Days
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$ 29.99 USD
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The ÜRO Parts 20796 Crankcase Vent Valve is a critical component for maintaining engine efficiency and emissions compliance.


Radiator Mount
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56977984
Part#: 17117514402
Ships in 2 Business Days
New Item
$ 6.99 USD
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Maintain cooling system stability under spirited street driving and hard track use with this URO Parts replacement upper radiator mount bracket.
Genuine BMW - Corporate Logo
T#:55317703
Part#: 112814CRKT
Ships in 9 Business Days
New Item
$ 80.26

This product was last offered at the strikethrough price on
10-08-2026

$ 79.26 USD
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$ 79.26 USD
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Swap out your aged factory components before they fail, and maintain total confidence in your charging, cooling, and air conditioning systems.
URO - Corporate Logo
T#:53644215
Part#: URO-023423
In Stock
New Item
$ 65.99 USD
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This high-quality hose from URO prevents overheating by maintaining a stable engine temperature, allowing for optimal performance and extended engine life.

URO Expansion Tank Hose - G11 G30
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56760944
Part#: 17128602602
Ships in 2 Business Days
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$ 65.99 USD
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This URO Parts Coolant Hose replaces brittle or leaking factory lines connecting the expansion tank to the auxiliary water pump and thermostat on B46/B48 powered G-chassis BMWs. Manufactured with reinforced rubber and robust end connections, it restores proper fluid circulation, withstands high operating pressures, and keeps your cooling system operating reliably under daily and hard driving conditions.
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URO Engine Coolant Hose - G30, G11
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:54851969
Part#: 17128602870
Ships in 2 Business Days
New Item
$ 61.99 USD
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On the track or the street, your cooling system is under constant abuse. A blown coolant hose can mean a cooked cylinder head and a ruined track day. When you're pushing your car to the limit, you need plumbing that can handle the heat.
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Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:57761592
Part#: 17127518581
Ships in 2 Business Days
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$ 42.99 USD
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$ 42.99 USD
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Engine Oil Cooler
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56977973
Part#: 11428510856
Ships in 2 Business Days
New Item
$ 83.99 USD
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Maintain stable oil temperatures and safeguard your BMW's powertrain with this replacement oil cooler from URO Parts.
Upper Radiator Expansion Tank Vent Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56977974
Part#: 17127618510
Ships in 2 Business Days
New Item
$ 27.99 USD
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URO Parts delivers a reliable aftermarket solution engineered to match original factory specifications for precise fitment and sustained durability.

Genuine BMW - Corporate Logo
T#:55317656
Part#: 1711173RMKT
Ships in 1-2 days
New Item
$ 59.16

This product was last offered at the strikethrough price on
08-24-2026

$ 59.02 USD
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$ 59.02 USD
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This Genuine BMW Radiator Mounting Kit provides the absolute best option for restoring the factory anchoring system on your chassis.

Genuine BMW - Corporate Logo
T#:55281750
Part#: 1722OCLKT
Ships in 1-2 days
New Item
$ 20.60 USD
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This Genuine BMW Oil Cooler Line O-Ring & Screw Kit includes the exact factory components required to safely service your oil cooler hard lines.
Genuine BMW - Corporate Logo
T#:56110319
Part#: 17125B3AE07
In Stock
New Item
6% off MSRP $ 104.99

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

$ 98.99 USD
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6% off MSRP
$ 104.99

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

$ 98.99 USD
Free Shipping on orders $49 and up
Genuine BMW - Corporate Logo
T#:55245851
Part#: 11XX17KT
Ships in 1-2 days
New Item
$ 25.88 USD
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Maintain the factory engineering integrity and peak performance of your ultimate driving machine with this Genuine BMW Intake and Cooling Refresh Kit.


Genuine BMW - Corporate Logo
T#:55209926
Part#: 0071199KT
Ships in 1-2 days
New Item
$ 8.59 USD
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This Genuine BMW water pump installation hardware kit is the exact factory refresh package needed to maintain the structural integrity of your cooling system's plumbing.
Genuine BMW - Corporate Logo
T#:55245854
Part#: 1711117XKT
Ships in 1-2 days
New Item
$ 26.92 USD
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This Genuine BMW Lower Radiator Mount and Bracket Refresh Kit supplies the factory-original hardware needed to overhaul your lower radiator supports.
Genuine BMW - Corporate Logo
T#:55317654
Part#: 1153CRKKT
Ships in 1-2 days
New Item
$ 56.52 USD
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Whether you’re maintaining an iconic E30 318i or keeping your daily driver running cool, Turner Motorsport has you covered with this direct-fit Cooling Replacement Kit.

Genuine BMW - Corporate Logo
T#:55245812
Part#: 17227800XKT
Ships in 4 Business Days
New Item
$ 24.21 USD
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This Maintenance Seal Kit bundles two high-failure items that should always be replaced anytime the engine oil cooler lines or oil level sensor are disturbed.

Genuine BMW - Corporate Logo
T#:56869530
Part#: 32415B33329
Ships in 6 Business Days
New Item
2% off MSRP $ 169.99

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

$ 165.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 169.99

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

$ 165.99 USD
Free Shipping on orders $49 and up
URO Expansion Tank Hose - F25 - F26
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:54851968
Part#: 17128570061
Ships on Jan 11, 2027
New Item
$ 26.99 USD
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In the world of performance German engineering, the cooling system is your engine's lifeline. Weak hoses lead to pressure drops and catastrophic failures. Whether you are refreshing your daily driver or prepping your car for the next track event, this heavy-duty coolant recovery tank hose delivers factory-level fitment with upgraded durability.
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Spirolox Clip
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55821687
Part#: 111414399753
Ships in 2 Business Days
New Item
$ 9.99 USD
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The ÜRO Parts Spirolox Clip provides the heavy-duty reliability your European vehicle demands, eliminating the structural weak links caused by fatigued or distorted factory hardware.
CoolXPert - Corporate Logo
T#:57616355
Part#: 17111709312
Back Ordered
New Item
$ 78.99 USD
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URO Coolant Bypass Hose - B48
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:54851970
Part#: 17128616914
Back Ordered
New Item
$ 44.99 USD
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On the street or at the track, your cooling system is under constant attack from extreme heat, pressure, and vibration. If your factory bypass hose is looking soft or crusty, it's a ticking time bomb. This heavy-duty replacement hose is engineered to restore factory-level reliability with track-ready durability.
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