BMW Coolant & Radiator Hoses for BMW 3 Series E30 (1984-1991)

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We offer replacement hoses from several OE brands that we trust, along with performance silicone upgrades for those who want increased wear resistance compared to factory rubber.
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Genuine BMW - Corporate Logo
T#:7432
Part#: 17111712788
Ships in 1-2 days
$ 5.94 USD
Free Shipping on orders $49 and up

This is the Genuine BMW Coolant bleeder screw. We recommend a heavy duty Aluminum replacement from ECS Tuning if you do not want to replace this part again when it fails.


Genuine BMW Vent Screw
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E53 48IS,E30,E34,E36,E38,E39,E46,E53 X5 X5,E83 X3,E85 Z4,E86 Z4,E90
 

 

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URO - Corporate Logo
T#:19433
Part#: 13541719967
Ships in 2 Business Days
$ 11.99 USD
Free Shipping on orders $49 and up
This is the hose that provides coolant to heat the throttle housing on M20 engines. It is connected to the upper nipple.

With more than 4,000 European vehicle replacement parts, URO is no stranger to the market. Superior metal stock and extremely strict quality control are at the forefront of URO’s agenda and it shows as they become the OE supplier for more and more car companies every single day.​

This item fits the following BMWs:
1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1989-1990 E34 BMW 525i
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Rein - Corporate Logo
T#:19431
Part#: 17121712736
In Stock
$ 13.99 USD
Free Shipping on orders $49 and up


VENT HOSE 17121712736 Manufactured by CRP


Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:362013
Part#: 11531718982
In Stock
$ 5.99 USD
Free Shipping on orders $49 and up
Connects between the Water pump and the thermostat

URO Upper Radiator Hose - E30 325e 325i 1988-1991
For vehicles with production date from 09/1987
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:361993
Part#: 11531722218
In Stock
$ 12.89 USD
Free Shipping on orders $49 and up
$ 12.89 USD
Free Shipping on orders $49 and up
Hose from radiator to water pump
Bremmen Parts - Corporate Logo
T#:640140
Part#: 17111712788
Ships on Dec 24, 2026
Sale - Save 39% $ 3.99

This product was last offered at the strikethrough price on
09-02-2026

$ 2.44 USD
Free Shipping on orders $49 and up
Sale - Save 39%
$ 3.99

This product was last offered at the strikethrough price on
09-02-2026

$ 2.44 USD
Free Shipping on orders $49 and up
Plastic bleeder screw for cooling system is used to bleed air that would otherwise create an air pocket and lead to overheating. Includes o-ring seal.

Rein Coolant Bleeder Screw CHW1575 - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591955
Part#: 17111712788
In Stock
$ 4.99 USD
Free Shipping on orders $49 and up
Coolant Bleeder Screw is a critical component for maintaining your BMW’s cooling system. Designed to release trapped air from the coolant lines, this screw ensures efficient coolant flow and prevents overheating. Specifically engineered for BMW models, it enhances the overall performance and longevity of your engine by maintaining proper temperature regulation. Comes with O-Ring.
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Water Pump to Thermostat Cooling Hose - E30 E34 E28
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:6917
Part#: 11531287651
In Stock
$ 10.99 USD
Free Shipping on orders $49 and up
Replace your cracked or leaking coolant hose with this radiator coolant hose that goes from the waterpump to the thermostat on cars with the M20 engine. We recommend inspecting cooling system hoses for dry rot / cracks yearly.

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1982-1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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90-110mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341281
Part#: 003402ECS06A-13
In Stock
Sale - Save 40% $ 6.99

This product was last offered at the strikethrough price on
05-02-2026

$ 4.19 USD
Free Shipping on orders $49 and up
Sale - Save 40%
$ 6.99

This product was last offered at the strikethrough price on
05-02-2026

$ 4.19 USD
Free Shipping on orders $49 and up

ECS Tuning 304 Stainless Steel Hose Clamps

Once again, ECS Tuning has found a way to make life easier for working on your car. Need new hose clamps but don't want to wait to order it from the dealership or pay more than you should for a hose clamp? That's where we come in! These are full 304 stainless steel hose clamps with various band widths for your convenience. They are German style using T-bolts to adjust in size to your required diameter. Never pay dealer pricing again, but still get the quality you love here at ECS Tuning.

  • Made from high-quality 304 stainless steel for durability
  • German-style design with T-bolts allows for easy size adjustment
  • Various band widths for versatile use
  • Avoid dealership pricing without compromising on quality
  • Perfect for BMW enthusiasts seeking affordable yet reliable hose clamps
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Radiator Hose - Lower
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:361989
Part#: 11531279895
In Stock
$ 12.99 USD
Free Shipping on orders $49 and up
During your radiator hose change, fluid loss is inevitable. Be sure to browse the website to get the proper replacement for your vehicle sent directly to your door. Also, be sure to order a new thermostat housing, as the stock plastic units often get broken or warped during removal
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3/8"/9mm Band Hose Clamp - 50-70mm
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341684
Part#: 003402ECS06A-12
In Stock
Sale - Save 25% $ 6.99

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

$ 5.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 6.99

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

$ 5.24 USD
Free Shipping on orders $49 and up
Elevate your BMW maintenance with ECS Tuning's 304 stainless steel hose clamps, offering convenience and top-quality performance at an affordable price. Designed with various band widths and German-style T-bolts for adjustable sizing, these hose clamps ensure a secure fit for your specific diameter needs. Skip the dealership wait and excessive pricing; ECS Tuning provides reliable, dealership-quality hose clamps without the premium cost, ensuring your car receives the care it deserves.
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Heater Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:362003
Part#: 11531289377
In Stock
$ 13.58

This product was last offered at the strikethrough price on
04-06-2026

$ 6.50 USD
Free Shipping on orders $49 and up
$ 6.50 USD
Free Shipping on orders $49 and up
Connects to the thermostat housing outlet.


Genuine BMW - Corporate Logo
T#:6533
Part#: 07129952104
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
GENUINE BMW HOSE CLAMP 07129952104
40-60mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341280
Part#: 003402ECS06A-08
In Stock
Sale - Save 25% $ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up

ECS Tuning 304 Stainless Steel Hose Clamps

Revolutionize your car maintenance with ECS Tuning's premium 304 stainless steel hose clamps. Eliminate dealership delays and inflated prices! These German-style clamps utilize T-bolts for hassle-free diameter adjustment. With various band widths available, these durable clamps ensure reliability without the hefty cost. Experience dealership-quality products at affordable rates, exclusively at ECS Tuning.

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Fuel Water Hose 13541705568
Up to production date 09/1987
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:7238
Part#: 13541705568
In Stock
$ 5.99 USD
Free Shipping on orders $49 and up
$ 5.99 USD
Free Shipping on orders $49 and up
FUEL SYSTEM WATER HOSE 13541705568.--

This item fits the following BMWs:
BMW 3 Series - 325e, 325es, 325i, 325ix
BMW 5 Series - 528e

--.

Genuine BMW - Corporate Logo
T#:2678
Part#: 11531309668
In Stock
$ 14.99 USD
Free Shipping on orders $49 and up
This Lower Thermostat Hose fits the following BMWs:
1988-1991 E30 3 Series M3

Genuine BMW - Corporate Logo
T#:14575
Part#: 11531709050
In Stock
Sale - Save 59% $ 39.99

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

$ 16.38 USD
Free Shipping on orders $49 and up
Sale - Save 59%
$ 39.99

This product was last offered at the strikethrough price on
05-02-2026

$ 16.38 USD
Free Shipping on orders $49 and up
GENUINE BMW WATER HOSE
Genuine BMW - Corporate Logo
T#:2672
Part#: 11531309667
In Stock
$ 14.99 USD
Free Shipping on orders $49 and up
This Radiator Expansion Tank Hose fits the following BMWs:
1988-1991 E30 3 Series M3

Genuine BMW - Corporate Logo
T#:6495
Part#: 07119963300
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up
$ 1.99 USD
Free Shipping on orders $49 and up
GENUINE BMW GASKET RING 07119963300
OEM Rein Thermostat Coolant Hose - E30 M20
For vehicles with a production date up to 09/1987
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:583586
Part#: 13541289976
Ships in 2 Business Days
$ 8.81 USD
Free Shipping on orders $49 and up
$ 8.81 USD
Free Shipping on orders $49 and up
Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Rein Coolant Hose - E28, E30, E34
For vehicles with production date from 09/1987
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379671
Part#: 13541719966
Ships in 2 Business Days
$ 6.11 USD
Free Shipping on orders $49 and up
$ 6.11 USD
Free Shipping on orders $49 and up
Thermostat to throttle housing

Rein Lower Heater Hose - E30
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379681
Part#: 11531714636
Ships in 2 Business Days
$ 7.99 USD
Free Shipping on orders $49 and up
Heats & cools the throttle body
Water Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373139
Part#: 11531266472
Ships in 2 Business Days
$ 1.99 USD
Free Shipping on orders $49 and up
Return pipe to water pump
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:362012
Part#: 11531287651
Ships in 2 Business Days
$ 11.99 USD
Free Shipping on orders $49 and up
From water pump to thermostat housing


OEM Rein Upper Radiator Hose - M42 E30 318i/is
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:6953
Part#: 11531717622
In Stock at Vendor
$ 11.99 USD
Free Shipping on orders $49 and up

Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure. This hose replaces the upper radiator hose that connects from the thermostat housing to the radiator inlet.

OEM Rein radiator hoses are always a perfect option when performing maintenance thanks to their high quality and longevity.

This item fits the following BMWs:
E30 BMW 318i, 318i Convertible, 318is

Fits BMW Engines including:
M42

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OEM Rein Coolant Hose - E30
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379799
Part#: 13541719967
In Stock at Vendor
$ 14.14

This product was last offered at the strikethrough price on
08-26-2026

$ 12.70 USD
Free Shipping on orders $49 and up
$ 12.70 USD
Free Shipping on orders $49 and up
Fix that leak or replace that old line with this OE replacement!
Genuine BMW - Corporate Logo
T#:55317676
Part#: 11531CKT
Ships in 2 Business Days
New Item
$ 74.07 USD
Free Shipping on orders $49 and up
Preventative cooling system maintenance is vital, and this complete hose and clamp overhaul kit is designed to eliminate weak points before they fail.

OEM Rein Lower Radiator Hose - M42 E30 318i/is
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:6952
Part#: 11531717620
In Stock at Vendor
$ 16.99 USD
Free Shipping on orders $49 and up

Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure. This hose replaces the lower radiator hose that connects from the radiator outlet to the thermostat housing.

OEM Rein radiator hoses are always a perfect option when performing maintenance thanks to their high quality and longevity.

This item fits the following BMWs:
E30 BMW 318i, 318i Convertible, 318is

Fits BMW Engines including:
M42

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E30 Radiator Hose - Upper
For vehicles with production date up to 09/1987
We Price Match - Give Us A Call or Chat!
Continental - Corporate Logo
T#:22130465
Part#: 11531286914
Ships in 3 Business Days
$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
Hose Clamp 2 5/16" - 3 1/4" - priced each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
Free Shipping on orders $49 and up

Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

  • Versatile and reliable solution for various applications
  • Superior strength and corrosion resistance
  • Adjustable design for a snug fit
  • Reduces risk of leaks for optimal performance
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Genuine BMW - Corporate Logo
T#:20217
Part#: 11531721847
In Stock
$ 14.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 14.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
WATER HOSE 11531721847

This item fits the following BMWs:
BMW 3 Series - 318i, 318i Convertible, 318is

--. Fits BMW Engines including:
M42

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Genuine BMW - Corporate Logo
T#:46094
Part#: 17119055593
Ships in 5 Business Days
6% off MSRP $ 15.99

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

$ 14.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 15.99

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

$ 14.99 USD
Free Shipping on orders $49 and up


Genuine BMW Connector - Service


Genuine BMW - Corporate Logo
T#:55317654
Part#: 1153CRKKT
Ships in 5 Business Days
New Item
$ 56.52 USD
Free Shipping on orders $49 and up
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#:6907
Part#: 11531278908
Ships in 8 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up


Genuine BMW Water Hose -

This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M10

Gates - Corporate Logo
T#:593004
Part#: 13541719967
Ships on Oct 16, 2026
$ 13.99 USD
Free Shipping on orders $49 and up
$ 13.99 USD
Free Shipping on orders $49 and up
Throttle housing small hose
Gates - Corporate Logo
T#:591774
Part#: 11531717622
Ships on Oct 16, 2026
$ 17.99 USD
Free Shipping on orders $49 and up
A common source of cooling system failure


Meyle Radiator Hose - Upper - E30
For vehicles with production date from 09/1987
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:555679
Part#: 11531722218
Ships on Oct 14, 2026
$ 15.99 USD
Free Shipping on orders $49 and up
$ 15.99 USD
Free Shipping on orders $49 and up
Hose from radiator to water pump
URO Lower Radiator Hose - E30 325e 325i 1988-1991
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373016
Part#: 11531718980
Back Ordered
$ 8.03 USD
Free Shipping on orders $49 and up
Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.
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Gates - Corporate Logo
T#:592918
Part#: 11531718982
Back Ordered
$ 20.99 USD
Free Shipping on orders $49 and up
Connects between the Water pump and the thermostat

Gates - Corporate Logo
T#:596346
Part#: 64211380527
Back Ordered
$ 18.99 USD
Free Shipping on orders $49 and up
Inlet hose to the heater core

O-Ring - Coolant Pipe - BMW
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:14949060
Part#: 11411304178
Back Ordered
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD
Free Shipping on orders $49 and up
$ 2.99 USD
Free Shipping on orders $49 and up
Over time, o-rings will wear and eventually fail, leading to leaks and other issues. Avoid this by replacing them with new examples!