BMW Coolant & Radiator Hoses for BMW E30 M3 S14 2.3L

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

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
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    Turner OEM Water Hose Set - E30 M3
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    Packaged by Turner - Corporate Logo
    T#:338252
    Part#: 11531309667KIT
    Ships in 4 Business Days
    Sale - Save 3% $ 212.99

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

    Starting at $ 206.38 USD
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    Sale - Save 3%
    $ 212.99

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

    Starting at $ 206.38 USD
    Free Shipping
    This pacakge of six rubber cooling hoses for the E30 M3 includes most of the commonly replaced coolant lines on the S14. Set includes -
  • upper radiator hose from the large metal coolant pipe, #23 in the diagram
  • top thermostat hose to the large metal coolant pipe, #15 in the diagram
  • middle thermostat hose (T-shaped) to the small metal coolant pipe and to the water pump, #13 in the diagram
  • lower thermostat hose to the bottom of radiator, #22 in the diagram
  • lower radiator hose to coolant pipe, #24 in the diagram
  • expansion tank hose to the small metal coolant pipe, #17 in the diagram
    We use a mix if OE BMW and aftermarket hoses that we trust. This is the original E30 M3 Cooling Hose kit that we have been selling for 20 years. Looking for hose clamps too? We have OEM-style clamps for these too, select this in the options list below.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
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    OEM Style Hose Clamps
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    Turner Motorsport - Corporate Logo
    T#:338927
    Part#: HOSE-CLAMPS
    In Stock
    Sale - Save 3% $ 3.99

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    06-13-2026

    Starting at $ 3.87 USD
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    $ 3.99

    This product was last offered at the strikethrough price on
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    Starting at $ 3.87 USD
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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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    Achilles Motorsport OBD1-to-OBD2 Coolant Hose Adapter - BMW M52 S52 E...
    For models with a OBD2 24v Swap (M5X, S5X engines) only!
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    Achilles Motorsports - Corporate Logo
    T#:1150775
    Part#: 11-AM-CHCAP-OBD1
    In Stock
    $ 54.99 USD
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    $ 54.99 USD
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    OBD2 to OBD1 Conversion Coolant Hose Adapter for E36 M52 & S52 Engines Replaces the metal pipe from the OBD2 engines with a hose adapter that allows the installation of a normal OBD1 coolant hose. This is useful when converting an OBD2 Engine to OBD1, or when swapping OBD2 engines into a car that is originally OBD1 (like an E30). The simple kit comes complete with the necessary 2 O-rings, extended bolt, Nylon Lock Nut & washers to make this a quick install. No need to wait! It is also completely reversible!
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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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    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
    Free Shipping on orders $49 and up
    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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    Genuine BMW Over Flow Hose - E30
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    Genuine BMW - Corporate Logo
    T#:10213
    Part#: 51731911369
    In Stock
    2% off MSRP $ 45.99

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

    $ 44.99 USD
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    2% off MSRP
    $ 45.99

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

    $ 44.99 USD
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    Genuine BMW Hose
    This item fits the following BMW Chassis:
    E30 M3,E30

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

    $ 23.99 USD
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    Sale - Save 25%
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    This product was last offered at the strikethrough price on
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    $ 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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    Genuine BMW Upper Radiator Hose - E30 M3
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    Genuine BMW - Corporate Logo
    T#:2305
    Part#: 11531309680
    Ships in 1 day
    $ 28.99 USD
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    When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

    This Upper Radiator Hose fits the following BMWs:
    1988-1991 E30 3 Series M3

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    Genuine BMW Coolant hose - E34 535i
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    Genuine BMW - Corporate Logo
    T#:367918
    Part#: 17121712736
    In Stock
    Sale - Save 5% $ 76.99

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

    $ 72.94 USD
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    $ 76.99

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

    $ 72.94 USD
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    Genuine BMW Outlet water hose - E30 M3
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    Genuine BMW - Corporate Logo
    T#:368715
    Part#: 64211374908
    Ships in 1 day
    2% off MSRP $ 48.99

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

    $ 47.99 USD
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    2% off MSRP
    $ 48.99

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

    $ 47.99 USD
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    Genuine BMW Water pipe - E30 M3
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    Genuine BMW - Corporate Logo
    T#:35825
    Part#: 11531309693
    Ships in 7 Business Days
    3% off MSRP $ 138.99

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

    $ 134.99 USD
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    3% off MSRP
    $ 138.99

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

    $ 134.99 USD
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    Genuine BMW Pipe
    This item fits the following BMW Chassis:
    E30 M3,E30

    Fits BMW Engines including:
    S14



    BMW E30 S14 Coolant Hoses - Black - DO88
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    DO88 - Corporate Logo
    T#:13924861
    Part#: DO88KIT130S
    Ships on Jul 16, 2026
    $ 342.99 USD
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    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 Coolant Hoses - Red - E30 M3
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    DO88 - Corporate Logo
    T#:13924862
    Part#: DO88KIT130R
    Ships on Jul 16, 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 Coolant Hoses - Blue - E30 M3
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    DO88 - Corporate Logo
    T#:13924864
    Part#: DO88KIT130B
    Ships on Jul 16, 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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    Genuine BMW Water hose Connecter - E30 M3
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    Genuine BMW - Corporate Logo
    T#:35826
    Part#: 11531309756
    Special Order: No Guaranteed ETA
    5% 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.

    $ 160.99 USD
    Free Shipping
    5% 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.

    $ 160.99 USD
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    Genuine BMW Water Connector
    This item fits the following BMW Chassis:
    E30 M3,E30

    Fits BMW Engines including:
    S14


    77-85mm - 3/4" Band Hose Clamp
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    ECS - Corporate Logo
    T#:377877
    Part#: 003402ECS07A-05
    In Stock
    Sale - Save 25% $ 25.99

    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
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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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    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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    3/8"/9mm Band Hose Clamp - 50-70mm
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    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
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    $ 6.99

    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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    Rein Expansion Tank Hose - E12, E21, E23, E24, E28, E30, E32, E34 ...
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    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:19431
    Part#: 17121712736
    Ships in 3 Business Days
    $ 13.99 USD
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    VENT HOSE 17121712736 Manufactured by CRP


    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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    Expansion Tank Hose
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    URO - Corporate Logo
    T#:50066848
    Part#: 17121712736
    In Stock
    New Item
    $ 12.79 USD
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    Coolant overflow hose designed to route excess coolant to and from the expansion tank, helping regulate system pressure and maintain proper coolant levels. Manufactured for correct fit and flow, it ensures reliable expansion tank operation and leak-free performance.
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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
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    $ 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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    Genuine BMW Radiator Expansion Tank Hose - E30 M3
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    Genuine BMW - Corporate Logo
    T#:2672
    Part#: 11531309667
    In Stock
    $ 14.99 USD
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    This Radiator Expansion Tank Hose fits the following BMWs:
    1988-1991 E30 3 Series M3


    Genuine BMW Lower Thermostat Hose - E30 M3
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    Genuine BMW - Corporate Logo
    T#:2678
    Part#: 11531309668
    In Stock
    $ 14.99 USD
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    This Lower Thermostat Hose fits the following BMWs:
    1988-1991 E30 3 Series M3
    90-110mm 3/8"/9mm Band Hose Clamp
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    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
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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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    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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    40-60mm 3/8"/9mm Band Hose Clamp
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    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
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    Sale - Save 25%
    $ 3.99

    This product was last offered at the strikethrough price on
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    $ 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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    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
    Water Hose
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    URO - Corporate Logo
    T#:373139
    Part#: 11531266472
    Ships in 1 Business Day
    $ 1.99 USD
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    Return pipe to water pump

    Hose Clamp 2 5/16" - 3 1/4" - priced each
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    ECS - Corporate Logo
    T#:376806
    Part#: 54155K23
    Ships in 1 day
    $ 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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    Coolant Hose & Hardware Refresh Kit
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    Genuine BMW - Corporate Logo
    T#:55317676
    Part#: 11531CKT
    Ships in 4 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.

    O-Ring - Coolant Pipe - BMW
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    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
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    $ 2.99 USD
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    Over time, o-rings will wear and eventually fail, leading to leaks and other issues. Avoid this by replacing them with new examples!