Gates 12454 Heater Hose with Protective Sleeve 5/16" x 4-21/32"

The Gates 12454 is a premium molded heater hose measuring 5/16" x 5/16" x 4-21/32" and includes a protective sleeve for enhanced durability. This small diameter molded coolant hose is factory-molded to OEM specifications, designed specifically to fit today's smaller, tighter-fitting engine compartments.

Key Features:

• EPDM tube construction with synthetic fiber knit reinforcement and EPDM cover
• Engineered to resist electrochemical degradation, the leading cause of hose failure
• Temperature range: -40°F to 275°F (-40°C to 135°C)
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
• Includes protective sleeve for added protection against abrasion and heat
• Approved for coolant, water, and air applications, including marine use

Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal performance. This hose is not intended for fuel or oil transfer applications. Gates molded coolant hoses provide OEM-quality replacement solutions, saving time and money compared to dealer parts.