Gates HVAC Heater Hose P/N:51748

Keep coolant moving quietly between the heater core and thermostat with the Gates Premium Modular Coolant Hose 51748, a heater-to-thermostat hose built for specific applications. It drops in as a direct-fit replacement for the 2002-2014 Cadillac Escalade, 2003-2014 Escalade ESV, 2002-2013 Escalade EXT, 2001-2014 Chevrolet Suburban 1500, 2006-2013 Suburban 2500, 2010 Chevrolet Silverado 1500, 2014 Chevrolet Suburban, 2001-2014 Chevrolet Tahoe, 2001-2014 GMC Yukon and Yukon XL 1500, and 2001-2013 GMC Yukon XL 2500 — see the Buyer's Guide tab for the full list and engine details.

• Modular assembly: Manufactured with OEM-exact hose components such as quick connects, branch connectors/tees, sensors and restrictors.
• Durable construction: EPDM tube with synthetic-fiber knit reinforcement and a heat-, ozone- and chemical coolant-resistant EPDM cover.
• Engineered materials: Resist collapse under vacuum and resist electrochemical degradation, the leading cause of hose failure.
• Rated: 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).

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

Interchange: 626-538
626538 · F11288 · 15005677 · 15051850 · 15059577 · 15792822 · 15834773