Gates 21311 Lower Radiator Coolant Hose – Molded OE Replacement

The Gates 21311 is a molded lower radiator coolant hose engineered as a direct OE replacement. Pre-shaped to match original equipment specifications, this hose installs quickly and ensures a perfectly sealed fit without modification.

Key Features:

• EPDM construction – EPDM tube with synthetic fiber knit reinforcement and heat-, ozone-, and coolant-resistant EPDM cover for long service life
• Electrochemical degradation (ECD) resistance – Engineered to resist the leading cause of coolant hose failure, including tube cracking and unexpected hose failure
• Vacuum collapse resistance – Re-engineered materials resist collapse under vacuum, reducing the need for internal springs
• OE fit – Pre-shaped molded design fits as a drop-in replacement for the original lower radiator hose
• Meets SAE standards – Complies with SAE 20R4 and 20R3 Type EC Class D-1 and D-2 specifications
• Temperature rated – Rated from -40°F to +275°F (-40°C to +135°C)
• Centerline Length: 18.7 in. (475 mm)
• Inside Diameter (End 1): 1.12 in. (28 mm)
• Inside Diameter (End 2): 1.25 in. (32 mm)
• Position: Lower
• Color: Black
• Sold individually

Backed by a lifetime Gates limited warranty, the Gates 21311 is part of the most comprehensive molded coolant hose line on the replacement market. Gates recommends replacing hose clamps each time a new coolant hose is installed. Not intended for fuel or oil transfer applications.