BMW Coolant & Radiator Hoses for BMW 7 Series E38 (1995-2001)

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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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Transmission Cooler Hose Set - E39 540i 99-03, E38 740i/iL 99-01
Transmission Cooler Hose Set - E39 540i 99-03, E38 740i/iL 99-01 ...
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Packaged by Turner - Corporate Logo
T#:338705
Part#: TMS16592
Ships in 3 Business Days
Sale - Save 5% $ 171.99

This product was last offered at the strikethrough price on
08-13-2026

Starting at $ 163.48 USD
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Sale - Save 5%
$ 171.99

This product was last offered at the strikethrough price on
08-13-2026

Starting at $ 163.48 USD
Free Shipping
Add to Wish List
The oil cooler/heat exchanger for the automatic transmission is one of the most overlooked sections of the 540i and 740i cooling system. The cooler (heat exchanger) is a part of the overall cooling system and uses coolant circulated from the regular cooling system to cool the transmission oil running through this small cooling block. Some of the hoses are shared with the rest of the cooling system as well. The E38/E39 heat exchanger is located along the driver's side frame rail and is accessed from the wheel well. We recommend servicing or cleaning the heat exchanger along with any cooling system overhaul. Or if you're having transmission faults (especially for temperature) you may want to clean the transmission cooler anyway and these hoses will be a nice finishing touch.

Replacing or cleaning the heat exchanger components could lead to better shifting of the automatic as the cooler itself can become clogged. If you're experiencing harder or hesitating shifts, and the internal transmission temperature is rising without being regulated, the components in this system are the likely cause. Staying on top of the cooling needs of the transmission will help prevent a very costly transmission repair in the future. These hoses are easily replaced and you can clean the heat exchanger easily with brake cleaner and some brushes.

Included in this handy package are:
  • 11531711381 - transmission cooling hose from water pump to radiator (with t-connector)
  • 11531711385 - transmission cooling hose from radiator to cooler
  • 11531711384 - transmission cooling hose from cooler to water pump
  • 11537511207 - transmission cooling hose from cooler to chassis
  • hose clamp
  • o-ring


    This hose set fits the following BMWs:
    1999-2003 E39 BMW 540i
    1999-2001 E38 BMW 740i 740il
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    OEM Coolant Return Pipe from Water Pump Hose to Transmission Cooler Thermostat - E39 540i E38 740i
    OEM Coolant Return Pipe from Water Pump Hose to Transmission Cooler T...
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    Rein - Corporate Logo
    T#:6945
    Part#: 11531711384
    In Stock at Vendor
    $ 68.99 USD
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    $ 68.99 USD
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    This is the cooling system return hose that goes from the automatic transmission cooling thermostat to the hose that comes off the lower water pump outlet.1999-2003 E39 BMW 540i
    1999-2001 E38 BMW 740i 740il
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    BMW Engine Water Hose 11531711877
    BMW Engine Water Hose 11531711877
    2X Entries Into Our F80 M3 Sweepstakes
    Rein - Corporate Logo
    T#:6947
    Part#: 11531711877
    In Stock
    $ 71.99 USD
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    $ 71.99 USD
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    GENUINE BMW ENGINE WATER HOSE 11531711877.--

    This item fits the following BMWs:
    BMW 7 Series - 750iL

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    Genuine BMW Coolant Crossover Pipe
    Genuine BMW Coolant Crossover Pipe
    For vehicles with a production date from 09/1998
    Genuine BMW - Corporate Logo
    T#:35866
    Part#: 11531437493
    Ships in 6 Business Days
    3% off MSRP $ 358.99

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

    $ 347.99 USD
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    3% off MSRP
    $ 358.99

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

    $ 347.99 USD
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    Genuine BMW Cooling System Accumulator -
    This item fits the following BMW Chassis:
    E38,E39,E53 X5

    Fits BMW Engines including:
    M62

    Genuine BMW Water Pipe - E38 740i 740iL E39 540i
    Genuine BMW Water Pipe - E38 740i 740iL E39 540i
    For vehicles with production date from 09/1998
    Genuine BMW - Corporate Logo
    T#:367678
    Part#: 11531711384
    In Stock
    3% off MSRP $ 85.99

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

    $ 82.99 USD
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    3% off MSRP
    $ 85.99

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

    $ 82.99 USD
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    Coolant Pipe - Return Line - E38
    Coolant Pipe - Return Line - E38
    Genuine BMW - Corporate Logo
    T#:35891
    Part#: 11531711885
    Ships in 3 Business Days
    4% off MSRP $ 141.99

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

    $ 136.99 USD
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    4% off MSRP
    $ 141.99

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

    $ 136.99 USD
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    Genuine BMW Coolant Pipe, Return Line -
    This item fits the following BMW Chassis:
    E38

    Fits BMW Engines including:
    M73N

    Genuine BMW Upper Radiator Hose - E38 750iL M73 5.4L
    Genuine BMW Upper Radiator Hose - E38 750iL M73 5.4L
    Genuine BMW - Corporate Logo
    T#:367679
    Part#: 11531711877
    Ships in 6 Business Days
    $ 77.99 USD
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    $ 77.99 USD
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    Genuine BMW Coolant Transfer Pipe
    Genuine BMW Coolant Transfer Pipe
    Genuine BMW - Corporate Logo
    T#:35937
    Part#: 11531741202
    Special Order: No Guaranteed ETA
    6% off MSRP $ 100.99

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

    $ 94.99 USD
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    6% off MSRP
    $ 100.99

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

    $ 94.99 USD
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    Genuine BMW Pipe -
    This item fits the following BMW Chassis:
    E38,E39,E53 X5

    Fits BMW Engines including:
    M62

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