Continental Contitech 20012258 Heater Hose 50ft 1/2in Epdm

Product Description

The CONTINENTAL CONTITECH 20012258 is a 50-foot automotive heater hose constructed from EPDM (Ethylene Propylene Diene Monomer) rubber, engineered for coolant circulation in vehicle heating systems. It measures 0.5 inches in inside diameter and features a spiral-reinforced EPDM cover for added structural integrity under system pressure and flexing. The hose carries an SAE J20R3 rating and is rated for continuous service from -40 degrees F up to 257 degrees F, making it suitable for demanding under-hood thermal cycles. HVAC and automotive service technicians cut this hose to length on the job, reducing the need to stock multiple pre-formed hoses.

This hose is suited for heater core inlet and outlet lines, bypass circuits, and other low-pressure coolant routing applications in passenger vehicles, light trucks, and similar automotive platforms. The 50-foot coil length gives service shops and fleet maintenance operations the flexibility to cut custom lengths for a wide range of vehicle configurations. The black EPDM construction resists ozone, heat aging, and coolant additives commonly found in modern antifreeze formulations.

Key Features

• EPDM tube and cover construction resists heat aging, ozone, and glycol-based coolants
• Spiral reinforcement maintains hose roundness and resists collapse under vacuum
SAE J20R3 rated for automotive heater hose service
• Wide temperature range: -40 degrees F to 257 degrees F (125 degrees C)
• 50-foot coil length allows on-site custom cutting for varied vehicle applications
• 0.5-inch inside diameter fits standard heater core and bypass fittings

Compatibility

Designed as an OEM-style replacement heater hose for automotive and light-truck cooling and heating systems requiring a 0.5-inch inside diameter SAE J20R3-rated hose.

Installation Notes

Installation is typically performed by automotive or fleet service technicians. Before replacing heater hoses, allow the engine to cool completely and relieve cooling system pressure by loosening the radiator cap slowly. Use a sharp hose cutter or utility knife for clean, square cuts to ensure a proper seal against hose barbs and clamps. Secure with appropriately sized hose clamps and inspect for leaks after refilling and pressure-testing the cooling system.