BMW Coolant & Radiator Hoses for BMW E46 M3 S54 (1999-2005)

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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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OEM Style Hose Clamps
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Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
In Stock
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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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OEM Rein Upper Radiator Hose - E46 M3
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Rein - Corporate Logo
T#:2306
Part#: 11537830716
In Stock
Sale - Save 36% $ 33.99

This product was last offered at the strikethrough price on
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$ 21.84 USD
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Sale - Save 36%
$ 33.99

This product was last offered at the strikethrough price on
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$ 21.84 USD
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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure. This hose replaces the Upper radiator hose that connects the thermostat housing to the radiator.

This Upper Radiator Hose fits the following BMWs:
2001-2006 E46 3 Series M3, M3 Convertible

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ECS E46 M3 Silicone Radiator Hose Kit
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ECS - Corporate Logo
T#:378149
Part#: 003631ECS01
In Stock
Sale - Save 25% $ 198.99

This product was last offered at the strikethrough price on
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$ 149.24 USD
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$ 198.99

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Unlike factory rubber hoses, silicone can withstand higher temperatures and pressures with minmal wear. Rubber will wear out and weaken so don't let it bite you when it counts! Silicone has been proven during extreme racing conditions and won't be the weak link that ruins your day.

This kit is specifically designed for the enthusiast that wants uprated cooling hoses, but also wants to address the heat-cycled plastic connectors and o-rings that are also prone to failure in higher mileage or older vehicles.

This E46 M3 ECS silicone hose set replaces two hoses - 
11537830716, upper radiator hose 
11537830715, lower radiator hose 

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ECS S54 Exact-fit Water Pipe Connecting Line
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ECS - Corporate Logo
T#:393542
Part#: 013178ECS
In Stock
Sale - Save 25% $ 159.99

This product was last offered at the strikethrough price on
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$ 119.99 USD
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$ 159.99

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$ 119.99 USD
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The ECS Exact-fit water line is a perfect upgrade if you're tired of dealing with brittle failure prone parts under your hood. The reinforced fluorosilicone hose has been pre-formed to route the same way your stock line did so you can maintain that clean factory installed appearance. Upgrading the line fitting with a billet aluminum piece eliminates the failure prone plastic fitting giving your cooling system strength.

Included:

Aluminum fitting

  • Material: 6061-T6 Aluminum - MIL-A-8625F Type II Class 2 black anodized for superior corrosion resistance and strength
  • Single-piece design avoiding additional interfaces that may cause leaks
  • Matches OEM style connection to upper coolant hose

Silicone hose

  • Material: Black Reinforced Fluorosilicone Lined Coolant Safe Silicone
  • Pre-formed hose to ensure OEM style routing and appearance
  • Can maintain the use of your stock retaining clips to route the hose in identical locations (due to slight variations in silicone the retainer on the expansion tank may not fit)
  • Pressure tested to ensure 2X operating pressures to ensure reliability
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Race German Coolant Temperature Sender Adapter - M12x1.5
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Race German - Corporate Logo
T#:6827887
Part#: RGCTSAM12
Ships in 2 Business Days
$ 35.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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Expansion Tank Water Pipe / Connecting Hose - E46 M3
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Genuine BMW - Corporate Logo
T#:12482
Part#: 17112229053
In Stock
1% off MSRP $ 96.35

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$ 95.28 USD
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1% off MSRP
$ 96.35

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

$ 95.28 USD
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This is the Genuine BMW coolant reservoir / expansion tank vent hose for E46 M3 with the S54 engine.

This item fits the following BMWs:
2001-2006 E46 BMW M3

OEM Rein Lower Radiator Hose - E46 M3
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Rein - Corporate Logo
T#:2674
Part#: 11537830715
In Stock
Sale - Save 5% $ 23.99

This product was last offered at the strikethrough price on
06-29-2026

$ 22.79 USD
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This product was last offered at the strikethrough price on
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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure. This hose replaces the lower radiator hose that connects the radiator to the thermostat housing.

This Lower Radiator Hose fits the following BMWs:
2001-2006 E46 3 Series M3, M3 Convertible

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Race German Coolant Temperature Sender Adapter - 1/8NPT
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Race German - Corporate Logo
T#:6827888
Part#: RGCTSA1/8NPT
Ships in 1 Business Day
$ 35.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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E46 M3 Radiator Hose - Upper And Lower
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Rein - Corporate Logo
T#:20617632
Part#: 11537830715KT
In Stock
Sale - Save 5% $ 53.98

This product was last offered at the strikethrough price on
06-29-2026

$ 51.28 USD
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This product was last offered at the strikethrough price on
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Both thermostat housing hoses to replace your worn out rubber and brittle plastic connections.

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.

Comes with both upper and lower thermostat hoses: 11537830715 Lower + 11537830716 Upper

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Genuine BMW Heater Hose - E46 M3
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Genuine BMW - Corporate Logo
T#:14119
Part#: 64216902680
In Stock
1% off MSRP $ 73.99

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

$ 72.99 USD
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1% off MSRP
$ 73.99

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

$ 72.99 USD
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Genuine BMW Hose F Radiator And Engine Return
This item fits the following BMW Chassis:
E46 M3,E46

70-78mm - T-Bolt Hose Clamp - Priced each
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ECS - Corporate Logo
T#:380416
Part#: 003402ECS07A-03
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This product was last offered at the strikethrough price on
06-13-2026

$ 23.99 USD
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Ensure a tight and leak-free seal in your BMW's cooling, vacuum, or intake systems by installing a new adjustable hose clamp. Over time, clamps can deform or lose their tightness due to aging or frequent removal, potentially causing leaks in your coolant or vacuum hoses. Avoid the risk of leaks by replacing old clamps with new hardware, offering peace of mind against coolant and vacuum system issues.

Key benefits of the adjustable hose clamp include:

  • Maintaining a secure and leak-free seal in your BMW's systems.
  • Preventing coolant or vacuum leaks that can affect performance.
  • Adjustable size from 70mm to 78mm for versatile applications.

Upgrade your hose clamps to ensure optimal performance and reliability in your BMW's systems.

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Radiator Hose - Lower
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Bremmen Parts - Corporate Logo
T#:38655188
Part#: 11537830715
In Stock
Sale - Save 17% $ 26.99

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

$ 22.53 USD
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Radiator Hose - Upper
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Bremmen Parts - Corporate Logo
T#:38621426
Part#: 11537830716
In Stock
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This product was last offered at the strikethrough price on
05-03-2026

$ 20.39 USD
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Genuine BMW Coolant Pipe - E46 M3
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Genuine BMW - Corporate Logo
T#:13013
Part#: 11537830711
In Stock
Sale - Save 5% $ 154.99

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$ 147.10 USD
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This product was last offered at the strikethrough price on
06-25-2026

$ 147.10 USD
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Genuine BMW Pipe
This item fits the following BMW Chassis:
E46 M3,E46

Fits BMW Engines including:
S54

Mishimoto Silicone Radiator Hose Kit - Blue - E46 M3
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Mishimoto - Corporate Logo
T#:378435
Part#: MMHOSEE4699BL
In Stock at Vendor
$ 121.99 USD
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$ 121.99 USD
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Mishimoto BMW E46 silicone radiator hose kits are made with a dual-layer combining high-grade silicone and heat-resistant embedded fibers to provide efficient heat reduction and increased pressure tolerance, all with an OEM replacement fit. Perfect for your BMW. Direct fit for 2001–2006 BMW E46 M3 Max temperature of 330°F Made of high-grade silicone and heat-resistant embedded fibers Efficiently reduces heat Increases pressure tolerance OEM replacement fit Available in black, blue, or red Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto Silicone Radiator Hose Kit - Black - E46 M3
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Mishimoto - Corporate Logo
T#:378442
Part#: MMHOSEE4699BK
In Stock at Vendor
$ 121.99 USD
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$ 121.99 USD
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Mishimoto BMW E46 silicone radiator hose kits are made with a dual-layer combining high-grade silicone and heat-resistant embedded fibers to provide efficient heat reduction and increased pressure tolerance, all with an OEM replacement fit. Perfect for your BMW. Direct fit for 2001–2006 BMW E46 M3 Max temperature of 330°F Made of high-grade silicone and heat-resistant embedded fibers Efficiently reduces heat Increases pressure tolerance OEM replacement fit Available in black, blue, or red Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Genuine BMW Radiator Hose - Lower - E46 M3 S54 3.2L
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Genuine BMW - Corporate Logo
T#:360695
Part#: 11537830715
Ships in 3 Business Days
$ 64.99 USD
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$ 64.99 USD
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Genuine BMW Radiator Hose - Upper - E46 M3
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Genuine BMW - Corporate Logo
T#:360696
Part#: 11537830716
Ships in 3 Business Days
$ 65.99 USD
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$ 65.99 USD
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BMW E46 M3 ECS Silicone Hose Kit
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ECS - Corporate Logo
T#:393964
Part#: 003631ECS01KT
In Stock
Sale - Save 25% $ 364.99

This product was last offered at the strikethrough price on
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$ 273.25 USD
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$ 364.99

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BMW E46 M3 ECS Silicone Hose Kit: Upgrade Your BMW's Cooling System

  • Enhances durability and longevity
  • Resistant to high temperatures and pressure
  • Improves coolant flow for better engine cooling
  • Easy to install with no modifications required

Upgrade your BMW's cooling system with the BMW E46 M3 ECS Silicone Hose Kit. This kit is designed to enhance durability and longevity compared to OEM rubber hoses. Constructed from high-quality silicone, these hoses are resistant to high temperatures and pressure, ensuring reliable performance under demanding conditions. Additionally, they improve coolant flow for better engine cooling, resulting in improved overall performance. Installation is easy and straightforward, with no modifications required, making it a convenient upgrade for BMW enthusiasts.

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Genuine BMW Coolant hose - E46 M3
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Genuine BMW - Corporate Logo
T#:150726
Part#: 64216902679
In Stock
3% off MSRP $ 35.99

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

$ 34.99 USD
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3% off MSRP
$ 35.99

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

$ 34.99 USD
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Genuine BMW Hose F Water Valve And Radiator
This item fits the following BMW Chassis:
E46 M3,E46


Mishimoto Silicone Radiator Hose Kit - Red - E46 M3
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Mishimoto - Corporate Logo
T#:378416
Part#: MMHOSEE4699RD
In Stock at Vendor
$ 121.99 USD
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$ 121.99 USD
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Mishimoto BMW E46 silicone radiator hose kits are made with a dual-layer combining high-grade silicone and heat-resistant embedded fibers to provide efficient heat reduction and increased pressure tolerance, all with an OEM replacement fit. Perfect for your BMW. Direct fit for 2001–2006 BMW E46 M3 Max temperature of 330°F Made of high-grade silicone and heat-resistant embedded fibers Efficiently reduces heat Increases pressure tolerance OEM replacement fit Available in black, blue, or red Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Genuine BMW Water Pipe - Thermostat Housing to Return Pipe - E46 Z3 Z...
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Genuine BMW - Corporate Logo
T#:36149
Part#: 11537830710
Ships in 6 Business Days
4% off MSRP $ 76.99

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

$ 73.99 USD
Free Shipping
4% off MSRP
$ 76.99

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

$ 73.99 USD
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Genuine BMW Pipe
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

Fits BMW Engines including:
S54

Genuine BMW Radiator Return Line - 32412282353 - E46,E46 M3
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Genuine BMW - Corporate Logo
T#:12524
Part#: 32412282353
Ships in 3 Business Days
3% off MSRP $ 280.99

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

$ 272.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 280.99

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

$ 272.99 USD
Free Shipping on orders $49 and up


Genuine BMW Radiator Return Line
This item fits the following BMW Chassis:
E46 M3,E46

Genuine BMW Coolant hose - E46 M3
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Genuine BMW - Corporate Logo
T#:150725
Part#: 64216902678
Ships in 3 Business Days
2% off MSRP $ 55.99

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

$ 54.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 55.99

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

$ 54.99 USD
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Genuine BMW Hose F Engine Inlet And Water Valve
This item fits the following BMW Chassis:
E46 M3,E46



DO88 Coolant Hoses - Black - E46 M3
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DO88 - Corporate Logo
T#:13924829
Part#: DO88KIT70S
Ships on Jul 23, 2026
$ 256.99 USD
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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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BMW S54 ECS Exact-fit Waterpipe Connecting Line
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ECS - Corporate Logo
T#:393388
Part#: 013178ECSKT
In Stock
Sale - Save 25% $ 148.99

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

$ 111.74 USD
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Sale - Save 25%
$ 148.99

This product was last offered at the strikethrough price on
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$ 111.74 USD
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BMW S54 ECS Exact-fit Waterpipe Connecting Line

Enhance your vehicle’s performance with the BMW S54 ECS Exact-fit Waterpipe Connecting Line, crafted for precision and durability.

  • Precision Engineering: Engineered to exact specifications for a perfect fit.
  • Enhanced Cooling: Improves coolant flow for better engine temperature regulation.
  • Durable Construction: Made from high-quality materials to withstand engine heat and pressure.
  • Direct Replacement: Installs seamlessly without modifications for hassle-free maintenance.

Upgrade your BMW S54 engine with confidence using the ECS Exact-fit Waterpipe Connecting Line, delivering reliability and performance you can depend on.

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Gates Radiator Hose - Upper - E46
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Gates - Corporate Logo
T#:362110
Part#: 11537830716
In Stock at Vendor
$ 48.99

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

$ 46.99 USD
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$ 46.99 USD
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Connects the radiator to the thermostat housing

1/2"/12mm Band Hose Clamp - 25-40mm - Priced Each
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ECS - Corporate Logo
T#:385425
Part#: 003402ECS05A-06
In Stock
Sale - Save 25% $ 4.99

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

$ 3.74 USD
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Sale - Save 25%
$ 4.99

This product was last offered at the strikethrough price on
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$ 3.74 USD
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Upgrade Your BMW Maintenance with Stainless Steel Hose Clamps from ECS Tuning

ECS Tuning introduces premium full stainless steel hose clamps, offering superior quality and convenience for your BMW maintenance. Avoid dealership delays and overpricing by choosing from a selection of band widths, ensuring you receive top-quality hose clamps without overpaying.

Key Benefits:

  • Premium full stainless steel hose clamps
  • Various band widths for enhanced convenience
  • High-quality alternative to dealership pricing
  • Readily available stock eliminates waiting time
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Rein Coolant Bleeder Screw CHW1575 - Priced Each
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Rein - Corporate Logo
T#:591955
Part#: 17111712788
In Stock
Sale - Save 22% $ 4.99

This product was last offered at the strikethrough price on
06-29-2026

$ 3.87 USD
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Sale - Save 22%
$ 4.99

This product was last offered at the strikethrough price on
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$ 3.87 USD
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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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Genuine BMW Coolant Bleeder Screw 17111712788
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Genuine BMW - Corporate Logo
T#:7432
Part#: 17111712788
In Stock
$ 5.94 USD
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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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Band Hose Clamp | 12-20mm 3/8"/9mm
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ECS - Corporate Logo
T#:304266
Part#: 003402ECS06A-03
In Stock
Sale - Save 25% $ 4.99

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

$ 3.74 USD
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Sale - Save 25%
$ 4.99

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

$ 3.74 USD
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Secure hoses in your BMW effortlessly with the ECS 3/8" / 9mm Band Hose Clamp (12-20mm). Specifically designed for BMW models, this clamp ensures a snug fit and reliable hold for hoses measuring between 12mm to 20mm. Crafted with durable materials, these clamps provide exceptional resistance against leaks and are ideal for various automotive applications. Upgrade your BMW's hose security with these reliable ECS hose clamps.
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60-80mm 1/2"/12mm Band Hose Clamp
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ECS - Corporate Logo
T#:377836
Part#: 003402ECS05A-10
In Stock
Sale - Save 25% $ 6.99

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

$ 5.24 USD
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Sale - Save 25%
$ 6.99

This product was last offered at the strikethrough price on
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$ 5.24 USD
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ECS Tuning Stainless Steel Hose Clamps for BMW

Upgrade your BMW's hose clamps with ECS Tuning Stainless Steel Hose Clamps, designed for convenience and durability. Say goodbye to long waits and overpriced dealership clamps. With various band widths available, these stainless steel clamps ensure a secure fit for your vehicle's hoses.

Benefits:

  • Convenient replacement for worn-out hose clamps
  • Made of durable stainless steel for long-lasting performance
  • Available in various band widths for versatile use
  • Affordable alternative to dealership pricing
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90-110mm 3/8"/9mm Band Hose Clamp
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ECS - Corporate Logo
T#:341281
Part#: 003402ECS06A-13
In Stock
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05-02-2026

$ 4.19 USD
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Sale - Save 40%
$ 6.99

This product was last offered at the strikethrough price on
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$ 4.19 USD
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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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Bremmen Coolant Bleeder Screw - BMW E30 E36 E38 E39 E46 E83 E90 Z4 ...
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Bremmen Parts - Corporate Logo
T#:640140
Part#: 17111712788
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This product was last offered at the strikethrough price on
05-03-2026

$ 2.44 USD
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This product was last offered at the strikethrough price on
05-03-2026

$ 2.44 USD
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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.
3/8"/9mm Band Hose Clamp - 50-70mm
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ECS - Corporate Logo
T#:341684
Part#: 003402ECS06A-12
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This product was last offered at the strikethrough price on
06-13-2026

$ 5.24 USD
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This product was last offered at the strikethrough price on
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$ 5.24 USD
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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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Genuine BMW Hose Clamp 07129952104
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Genuine BMW - Corporate Logo
T#:6533
Part#: 07129952104
In Stock
$ 3.99 USD
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GENUINE BMW HOSE CLAMP 07129952104


40-60mm 3/8"/9mm Band Hose Clamp
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ECS - Corporate Logo
T#:341280
Part#: 003402ECS06A-08
In Stock
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This product was last offered at the strikethrough price on
06-13-2026

$ 2.99 USD
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Sale - Save 25%
$ 3.99

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

$ 2.99 USD
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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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77-85mm - 3/4" Band Hose Clamp
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ECS - Corporate Logo
T#:377877
Part#: 003402ECS07A-05
In Stock
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This product was last offered at the strikethrough price on
06-13-2026

$ 19.49 USD
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This product was last offered at the strikethrough price on
06-13-2026

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Upgrade your BMW's hose clamps with the 77-85mm - 3/4" Band Hose Clamp from Turner Motorsport. These full 304 stainless steel clamps offer convenience and quality without the dealership price tag. German-style T-bolts allow for easy adjustment to your required diameter, ensuring a secure fit every time.

  • Made of durable 304 stainless steel for long-lasting performance
  • German-style T-bolt design for easy size adjustment
  • Convenient band widths for versatile applications
  • Quality alternative to dealership pricing
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70-90mm 3/8"/9mm Band Hose Clamp
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ECS - Corporate Logo
T#:363017
Part#: 003402ECS06A-11
In Stock
Sale - Save 25% $ 6.99

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

$ 5.24 USD
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Sale - Save 25%
$ 6.99

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

$ 5.24 USD
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Upgrade your BMW with ECS Tuning's Stainless Steel Hose Clamps, designed for convenience and durability. With various band widths and German-style T-bolts, these clamps offer easy adjustment to your required diameter. Say goodbye to dealer pricing and enjoy the quality you love at ECS Tuning.

  • Full stainless steel construction
  • Various band widths available
  • German-style T-bolts for easy adjustment
  • Convenient solution for hose clamp replacement
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Hose Clamp 2 5/16" - 3 1/4" - priced each
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ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
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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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Oil Cooler Line O-Ring & Screw Kit
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Genuine BMW - Corporate Logo
T#:55281750
Part#: 1722OCLKT
Ships in 3 Business 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.
Coolant Flange - Rear/Engine Block
Fits European models only
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Meyle - Corporate Logo
T#:55533481
Part#: 11531708808
Special Order: No Guaranteed ETA
New Item
$ 9.99 USD
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$ 9.99 USD
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This Meyle Original-grade replacement coolant flange is the perfect solution for refreshing your BMW’s cooling plumbing back to factory-fresh operation.

BMW Radiator Hose Kit - 11537830715
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Rein - Corporate Logo
T#:46719180
Part#: CHK0376R
Back Ordered
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This product was last offered at the strikethrough price on
06-29-2026

$ 41.48 USD
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Sale - Save 6%
$ 43.99

This product was last offered at the strikethrough price on
06-29-2026

$ 41.48 USD
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Keep your cooling system sealed, strong, and ready for anything with this Rein radiator hose kit—your all-in-one fix for cracked, leaking, or worn factory hoses. Years of heat, pressure, and age can cause rubber to weaken, split, or swell, setting the stage for coolant leaks and potential overheating. Rein hoses are engineered to meet or exceed OEM standards, built from premium, heat-resistant materials that can take on extreme temperatures and system pressures without faltering. Each hose features factory-correct bends, fittings, and diameters for an exact, hassle-free installation—no cutting or forcing required. Whether you’re tackling a full cooling system refresh or chasing down a small coolant leak, this Rein kit provides everything needed to restore confidence and performance under the hood. Why choose this Rein radiator hose kit: Factory-level precision – Direct-fit replacements that deliver OEM-quality reliability. Built to last – Resists cracking, swelling, and chemical damage from daily heat cycling. Confidence restored – Prevents coolant loss, overheating, and on-road breakdowns. All-in-one upgrade – Includes upper and lower hoses for a complete system refresh. If keeping your BMW’s cooling system running tight and trouble-free is the goal, Rein brings the dependable quality and fitment you can count on—engineered to perform just like factory, mile after mile.
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DO88 Coolant Hoses - Blue - E46 M3
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DO88 - Corporate Logo
T#:13924830
Part#: DO88KIT70B
Back Ordered
$ 256.99 USD
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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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