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Car Heater & Radiator Hose – SAE J20R3

This mandrel built radiator hose is suitable for delivering hot water and anti-freeze in cooling systems


The branding on the hose is ‘Heater hose SAE J20 R3 class D-1 WP 10 bar’. With also the month & year of manufacture embossed. The hose cover is a smooth CR/NBR rubber cover which is weather, abrasion and oil resistant. Also this has a smooth bore with an EPDM liner making it suitable for ethylene glycol solutions. The high tensile strength textile ply reinforcement allows working pressures up to 10 bar, with a safety factor of at least 3:1. The working temperature of this hose is -25°c to + 125°c and peaks at 140°c.




Black smooth EPDM rubber, heat, weather and resistant
HEATER HOSE SAE J20 R3 CLASS D-1 WP 10 BAR. Month & year of manufacture embossed
High tensile textile plies
Black EPDM rubber, heat resistant
From -25°C to +125°C (peak 140°C)
Safety Factor:
3:1 Minimum

Measurements & Values

ID OD Working Pressure Burst Pressure Hose Weight Wall Thickness Hose Temp
6.5mm13.5mm10 bar30 bar0.160 kg 3.5mm-25°C to +125°C
8mm14.5mm10 bar30 bar0.185 kg3.25mm-25°C to +125°C
10mm17mm10 bar30 bar0.240 kg3.5mm-25°C to +125°C
13mm21mm10 bar30 bar0.340 kg4mm-25°C to +125°C
16mm24mm10 bar30 bar0.380 kg4mm-25°C to +125°C
19mm27mm10 bar30 bar0.440 kg4mm-25°C to +125°C
25mm34mm10 bar30 bar0.630 kg4.5mm-25°C to +125°C


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