Gates 51643 upper radiator coolant hose for the 2003-2008 BMW 760Li V12 6.0L and other vehicles carries coolant between the engine and the radiator. As a Gates molded coolant hose, it is a modular assembly built to fit specific applications.
A coolant leak, a soft or cracked hose, or overheating can mean this hose is worn, though a stuck thermostat or a weak radiator cap can be behind them too, so find the cause before you replace anything. Look the hose over only with the engine cool.
The 2003-2008 BMW 760Li V12 6.0L and the 2004-2006 BMW 760i V12 6.0L both take this hose, one per car.
Fit and size
Build and materials
Interchange: 27443X · 17127508038 · F11266 · R19419
This part cross-references / interchanges with the following part numbers:
Is this Gates coolant hose the right one for the 2003-2008 BMW 760Li V12 6.0L?
Yes. Gates 51643 is an upper hose and fits the 2003-2008 BMW 760Li V12 6.0L, which takes one.
What material is this Gates radiator coolant hose made of?
The materials are EPDM, plastic and steel. The tube is EPDM with synthetic fiber knit reinforcement and a heat-, ozone- and chemical coolant-resistant EPDM cover.
How many quick connectors does the Gates 51643 have?
Gates 51643 has 5 female quick connectors and 3 branches. The five ends measure 1.2 in, 1.2 in, 0.6 in, 0.5 in and 0.6 in inside diameter.
What temperature range can this coolant hose handle?
The range is -40°F to +257°F (-40°C to +125°C). It meets SAE 20R3 EC Class D1 below 25 mm ID and SAE 20R4 EC Class D1 at 25 mm ID and larger.
Does Gates 51643 replace the 17127508038 hose?
Yes. 17127508038 is one of the other numbers that Gates 51643 replaces.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
