Gates 51861 Molded Coolant Hose 1-1/4" x 1-5/16" x 21-5/32"

The Gates 51861 is a precision-engineered molded coolant hose designed to provide reliable cooling system performance for upper, lower, bypass, heater and other coolant applications. This pre-shaped hose is manufactured to OEM-quality specifications, offering a cost-effective alternative to dealer-sourced radiator hose replacements.

Construction and Materials:

• EPDM (ethylene propylene diene monomer) inner tube for excellent coolant compatibility
• Synthetic fiber knit reinforcement for strength and durability
• Heat-, ozone-, and chemical coolant-resistant EPDM cover
• Engineered to resist electrochemical degradation, the leading cause of hose failure

Performance Specifications:

• Temperature range: -40°F to +257°F (-40°C to +125°C)
• Meets SAE 20R4, Class D2 requirements
• Meets DIN 73411, Class A standards (except for tolerances)
• Pre-shaped design ensures perfectly sealed connections

Dimensions: 1-1/4" x 1-5/16" x 21-5/32"

Important Installation Notes: Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal performance. Do not use this hose for fuel or oil transfer applications.