Gates 18424 Small I.D. Molded Heater Hose 12.3 in. Length 0.52 in. I.D.

The Gates 18424 is a small I.D. factory-molded, OEM-style heater hose engineered to fit modern, tighter-fitting engine compartments. Designed as a direct OE replacement for the heater-to-engine connection, this hose delivers reliable coolant transfer with a 12.3-inch centerline length and a 0.52-inch inner diameter.

Constructed with an EPDM tube, synthetic fiber knit reinforcement, and EPDM cover, this hose is engineered to resist electrochemical degradation (ECD) — the leading cause of premature hose failure. It is also approved for use in coolant, water, and air applications, including marine environments.

Key Features:

• Factory-molded OEM-style construction for precise fitment in tight engine compartments
• EPDM tube and cover with synthetic fiber knit reinforcement for long-lasting durability
• Engineered to resist electrochemical degradation — the leading cause of hose failure
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Approved for coolant, water, air, and marine applications
• Natural finish; sold individually
• Covered by a lifetime Gates limited warranty

Specifications:

• Centerline Length: 12.3 in.
• Inner Diameter (I.D.): 0.52 in.
• Fit: Heater to Engine
• Finish: Natural

Cross-Reference / OEM Part Numbers: Toyota 8720960120, Toyota 8720960441, Toyota 8724508130, GM 30002865, GM 30011568, GM 96058068, Honda 39222671010, Suzuki 1787260A00, Suzuki 1787260G01, Dayco 87312, ACDelco 16021M, NAPA 10424, Goodyear 63256

The Gates 18424 molded heater hose is a trusted OE-quality replacement backed by over a century of Gates engineering expertise, ensuring your cooling and HVAC system stays leak-free and performing at its best.