Dayco 86834 HVAC Heater Hose 9/32 Inch I.D.

The Dayco 86834 is a small inside diameter HVAC heater hose engineered to replace OEM coolant hoses in applications requiring molded hoses with compact dimensions. This precision-molded hose features the same bends and routing as the original equipment assembly for an exact fit with no cutting or modifications required.

Key Features:

• 9/32 inch (0.281 inch) inside diameter for proper coolant flow
• 9/16 inch outside diameter
• EPDM (Ethylene Propylene Diene Monomer) rubber construction for superior durability
• Knitted reinforcement provides high burst strength and prevents splitting or ballooning
• Black finish for a professional OEM appearance
• Temperature rating from -40°F to +257°F (-40°C to +125°C)
• Meets SAE J20R3 Class D-1 specifications
• Meets SAE J1684 Type EC electro-chemical requirements to prevent inner tube deterioration
• Resistant to ozone, coolants, coolant additives, and environmental elements

Designed for automotive light trucks and passenger cars, this heater hose efficiently carries heated coolant from the engine block to the heater core and back. The synthetic EPDM construction ensures reliable, long-lasting performance even under extreme temperature variations and exposure to modern coolant formulations.