Gates HVAC Heater Hose P/N:51618

Keep coolant flowing to the heater core and the cabin warming as designed with the Gates heater hose 51618, a Premium Modular Coolant Hose built for the 2004-2007 BMW X3. This modular assembly is manufactured to fit the specific application at the heater outlet, integrating OE-style components — quick connects, branch connectors/tees, sensors and the like — the way the factory hose does.

• EPDM construction: EPDM tube with synthetic fiber knit reinforcement and a heat-, ozone- and chemical coolant-resistant EPDM cover.
• Collapse-resistant: specifically-engineered materials resist collapse under vacuum.
• Resists electrochemical degradation: engineered to address the leading cause of hose failure.
• Rated spec: meets SAE 20R3 EC Class D1 under 25mm (1 in.) ID and SAE 20R4 EC Class D1 for 25mm (1 in.) ID and over; temperature range -40°F to +257°F (-40°C to +125°C).

As an hvac heater hose, it manages coolant flow between the engine and the heater circuit; do not use it for fuel or oil transfer applications. Gates recommends installing new clamps whenever a coolant hose is replaced.

Interchange: 27429X · 64213400417 · F11257 · R19463 · CHH0515