Gates 21037 Molded Coolant Hose 2-3/4" x 22"

The Gates 21037 is a pre-shaped molded coolant hose measuring 2-3/4" inside diameter x 22" in length, engineered as a direct OEM-quality replacement for radiator and cooling system applications. Gates' molded coolant hose line is recognized as one of the most comprehensive replacement lines on the market, precision-manufactured to ensure a secure, leak-free fit.

Key Features:

• EPDM Construction: Tube and cover are made from heat-, ozone-, and chemical coolant-resistant EPDM rubber with synthetic fiber knit reinforcement
• ECD Resistance: Engineered to resist electrochemical degradation (ECD) — the leading cause of coolant hose failure — preventing micro-cracks and premature breakdown
• Vacuum Collapse Resistance: Specifically engineered materials resist vacuum collapse, reducing the need for internal coil springs in many applications
• Pre-Shaped Fit: Factory-molded to exact application geometry for perfectly sealed conditions and easy installation
• Wide Temperature Range: Rated from -40°F to +257°F (-40°C to +125°C)
• SAE & DIN Certified: Meets SAE 20R4 Class D2 and DIN 73411 Class A requirements
• Marine Approved: Approved for use in marine cooling system applications

Specifications:

• Inside Diameter: 2-3/4" (69.85 mm)
• Length: 22"
• Material: EPDM tube with synthetic fiber knit reinforcement and EPDM cover
• Temperature Range: -40°F to +257°F
• Standards: SAE 20R4 Class D2, DIN 73411 Class A

Gates recommends replacing hose clamps each time a new coolant hose is installed to ensure a proper, long-lasting seal.