MACK 20937174 Coolant Hose

Manufacturer

MACK

Features & Benefits

• EPDM rubber construction compatible with long-life OAT coolant formulations
• Internal textile reinforcement limits hose expansion under operating pressure
• Precision-molded ends support proper clamp load and sealing integrity
• Maintains flexibility across temperature cycles to reduce material fatigue

Mack Coolant Hose

Prevent coolant loss and overheating with the Mack Coolant Hose. This hose routes engine coolant between fixed components while accommodating vibration, pressure fluctuation, and temperature cycling during normal operation. It is constructed from EPDM rubber compatible with Organic Acid Technology (OAT) coolants, limiting material breakdown that leads to softening or internal degradation. An internal textile reinforcement controls expansion under water pump pressure, helping the hose retain its shape and sealing surface. Precision-molded ends seat correctly on radiator and engine fittings, allowing the Mack 20937174 hose to maintain clamp sealing and system pressure through normal heat cycles and service intervals.