Gates 19197 Premium Molded Heater Hose OE Replacement - 44.9in

The Gates 19197 is a premium molded heater hose engineered as a direct OE replacement for heater-to-intake-manifold applications. Factory pre-shaped to fit today's tighter engine compartments, this small I.D. molded coolant hose delivers reliable, leak-free performance with an inside diameter of 0.64 in. and a centerline length of 44.9 in.

Constructed with an EPDM tube, synthetic fiber knit reinforcement, and EPDM cover, this hose is specifically engineered to resist electrochemical degradation (ECD) — the leading cause of coolant hose failure. ECD occurs when the hose, liquid coolant, and metal fittings form a galvanic cell, creating micro-cracks that lead to leaks and eventual hose failure. Gates' advanced EPDM compound is formulated to prevent this process and extend service life.

Key Features:

• Pre-shaped, factory-molded design for precise OE-style fitment
• EPDM tube and cover with synthetic fiber knit reinforcement
• Engineered to resist electrochemical degradation (ECD)
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Inside diameter: 0.64 in.
• Centerline length: 44.9 in.
• Natural finish
• Sold individually
• Backed by Gates' lifetime limited warranty

Approved for coolant, water, and air applications, the Gates 19197 is also suitable for marine use. It is not intended for fuel or oil transfer. Fits heater-to-intake-manifold routing on vehicles without air conditioning and without an auxiliary heater.