Move engine coolant through your BMW's heater circuit with the Gates Premium Modular Coolant Hose 24103. This modular assembly hose is built to fit specific applications and drops in as a direct-fit replacement for the 2004-2006 BMW 545i (V8-4.4L), 2004-2005 BMW 645Ci (V8-4.4L), 2006-2010 BMW 550i (V8-4.8L), 2006-2010 BMW 650i (V8-4.8L), and 2010-2011 BMW 650Ci (V8-4.8L).
- EPDM construction: EPDM tube with synthetic fiber knit reinforcement and a heat-, ozone- and chemical coolant-resistant EPDM cover.
- Modular assembly: manufactured with OEM-exact hose components such as quick connects, branch connectors/tees, sensors, and restrictors integrated into the hose.
- Engineered materials: specifically-engineered materials resist collapse under vacuum and are designed to resist electrochemical degradation, the leading cause of hose failure.
- Standards & range: meets SAE 20R3 EC Class D1 under 25 mm (1 in.) ID and SAE 20R4 EC Class D1 for 25 mm (1 in.) ID and over; rated for -40°F to +257°F (-40°C to +125°C).
Gates recommends replacing the clamps whenever a new coolant hose is installed. Caution: do not use for fuel or oil transfer applications. Country of origin: Turkey.
Manufacturer part number 24103.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the Gates 24103 do?
It's a modular coolant hose that routes engine coolant through the heater circuit on the listed BMW applications, built with integrated OE-exact components like quick connects, branch connectors, and sensors.
Which vehicles does it fit?
It's a direct-fit replacement for the 2004-2006 BMW 545i (V8-4.4L), 2004-2005 BMW 645Ci (V8-4.4L), 2006-2010 BMW 550i and 650i (V8-4.8L), and 2010-2011 BMW 650Ci (V8-4.8L). See the Buyer's Guide tab to confirm your vehicle.
What is the hose made of?
An EPDM tube with synthetic fiber knit reinforcement and a heat-, ozone- and chemical coolant-resistant EPDM cover, with materials engineered to resist vacuum collapse and electrochemical degradation.
Do I need to replace the clamps?
Gates recommends replacing the clamps each time a new coolant hose is installed.
Can I use this hose for fuel or oil?
No. Gates cautions against using this hose for fuel or oil transfer applications; it is intended for coolant service only.
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