Gates HVAC Heater Hose P/N:12399

Route coolant reliably through the heater circuit with the Gates HVAC Heater Hose 12399, a factory-molded, OEM-style small I.D. hose shaped to fit today's smaller, tighter-fitting engine compartments. It's cataloged for the heater right-side position and installs as a direct-fit replacement on the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer — see the Buyer's Guide tab for engine-level fitment.

• Molded coolant hose: pre-formed to fit tight engine bays; suitable for coolant, water, and air applications, and also approved for marine use.
• EPDM construction: EPDM tube, synthetic fiber knit reinforcement, and EPDM cover, with the quality features of Gates molded coolant hose similar to OEM specifications.
• Electrochemical resistance: engineered to resist electrochemical degradation, the leading cause of hose failure.
• Rated: meets SAE 20R3 Type EC Class D-1 and D-2 specifications; temperature range -40°F to 275°F (-40°C to 135°C).

Gates recommends replacing the hose clamps each time a new coolant hose is installed. Caution: do not use for fuel or oil transfer applications.

Interchange: 6L24 18C553 HA · 6L2Z 18C553 E · 6L2Z 18C553 H
6L2418C553HA · 6L2Z18C553E · 6L2Z18C553H · F10612 · 13399