The Engine Cooling System SAE J20 R3 R4 EPDM Radiator Coolant Hose is a high-quality automotive hose designed for reliable coolant transfer and efficient engine temperature management. Manufactured from premium EPDM rubber and compliant with SAE J20 R3/R4 standards, this coolant hose provides excellent resistance to heat, coolant fluids, pressure, and aging. It is widely used in automotive, commercial vehicles, and industrial engine cooling systems, offering superior flexibility, durability, and long service life.
1. High-Performance EPDM Rubber Material
The coolant hose is produced using premium EPDM rubber, which offers excellent resistance to:
High temperature
Coolant and antifreeze chemicals
Ozone and weather aging
Cracking and hardening
This ensures stable performance and extended service life.
2. SAE J20 R3/R4 Standard Compliance
Designed according to SAE J20 R3 and R4 standards, the hose meets requirements for automotive coolant applications, including:
Pressure resistance
Heat resistance
Durability
Dimensional stability
It provides reliable performance in various engine cooling environments.
3. Excellent Temperature Resistance
The EPDM construction allows the hose to operate effectively under extreme temperature conditions. It maintains flexibility and sealing performance during repeated heating and cooling cycles.
4. Strong Pressure and Vibration Resistance
The reinforced hose structure helps withstand engine vibration, pressure fluctuations, and mechanical stress, reducing the risk of hose failure during operation.
5. Flexible Design and Easy Installation
Available in different shapes and bending configurations, the radiator coolant hose can adapt to complex engine compartments. The flexible design allows convenient installation while maintaining efficient coolant flow.
Item | Specification |
Product Name | Engine Cooling System SAE J20 R3 R4 EPDM Radiator Coolant Hose |
Material | EPDM Rubber |
Standard | SAE J20 R3 / SAE J20 R4 |
Color | Black |
Application | Engine Cooling System |
Working Medium | Coolant / Antifreeze |
Temperature Range | Approx. -40°C to +150°C |
Structure | Reinforced Rubber Hose |
Inner Diameter | Customized |
Length | Customized |
Shape | Straight / Curved / Customized |
Working Pressure | According to SAE J20 Standard |
Manufacturing Process | Extrusion & Molding |
Custom Service | OEM / ODM Available |
The SAE J20 R3 R4 EPDM Radiator Coolant Hose is an essential component of modern engine cooling systems, designed to transport coolant between the radiator, engine, water pump, thermostat, and other cooling components. It ensures continuous coolant circulation, helping maintain optimal engine temperature and preventing overheating during vehicle operation.
Made from advanced EPDM (Ethylene Propylene Diene Monomer) rubber, this radiator hose delivers outstanding performance in harsh automotive environments. EPDM material is well known for its excellent resistance to high temperatures, ozone, weather conditions, and chemical corrosion from antifreeze and coolant solutions. This makes the hose suitable for long-term operation under demanding engine conditions.
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Fuste is china Professional rubber hose manufactuer for 18years .
Fuste is china Professional rubber hose manufactuer for 18years .
Sometimes, you need a custom silicone hose for a specialized application where a standard hose won’t do the job.
