SAEJ20R3

61 products

  • 1 Metre Straight Silicone Hose Silicone Hose Auto Silicone Hoses 6mm Black

    1 Metre Straight Silicone Hose

    -50°C to +220°C 3 & 4 Ply SAEJ20R3
    Regular price From £9.89
    Sale price From £9.89 Regular price
  • 1 Metre SuperFlex Wire Reinforced Silicone Silicone Hose Auto Silicone Hoses 6mm Black

    1 Metre SuperFlex Wire Reinforced Silicone

    1 Metre Long Steel Wire Helix Anti-Kink
    Regular price From £18.96
    Sale price From £18.96 Regular price
  • 135 Degree Silicone Elbow Hose Silicone Hose Auto Silicone Hoses 6mm Black

    135 Degree Silicone Elbow Hose

    100mm Leg 200mm Long 3 & 4 Ply
    Regular price From £7.10
    Sale price From £7.10 Regular price
  • 180 Degree Silicone Elbow Hose Silicone Hose Auto Silicone Hoses 6mm Black

    180 Degree Silicone Elbow Hose

    100mm Leg 200mm Long 3 & 4 Ply
    Regular price From £7.10
    Sale price From £7.10 Regular price
  • 45 Degree Reducing Silicone Elbow Hose Silicone Hose Auto Silicone Hoses 16mm To 13mm Black

    45 Degree Reducing Silicone Elbow Hose

    150mm Leg 300mm Long 3 & 4 Ply
    Regular price From £6.58
    Sale price From £6.58 Regular price
  • 45 Degree Silicone Elbow Hose Silicone Hose Auto Silicone Hoses 6mm Black

    45 Degree Silicone Elbow Hose

    150mm Leg 300mm Long 3 & 4 Ply
    Regular price From £7.10
    Sale price From £7.10 Regular price
  • 90 Degree Reducing Silicone Elbow Hose Silicone Hose Auto Silicone Hoses

    90 Degree Reducing Silicone Elbow Hose

    150mm Leg 300mm Long 3 & 4 Ply
    Regular price From £5.90
    Sale price From £5.90 Regular price
  • 90 Degree Silicone Elbow Hose Silicone Hose Auto Silicone Hoses 6mm Black

    90 Degree Silicone Elbow Hose

    150mm Leg 300mm Long 3 & 4 Ply
    Regular price From £7.10
    Sale price From £7.10 Regular price
  • Audi A3 1.9TDI 131hp ASZ Engine EGR Blanking Silicone Hose Silicone Hose Auto Silicone Hoses

    Audi A3 1.9TDI 131hp ASZ Engine EGR Blanking Silicone Hose

    57mm to 51mm 90 Degree Elbow 3 Ply Silicone
    Regular price £20.59
    Sale price £20.59 Regular price
  • BMW 1 series E87 118d 120d Intercooler To EGR Silicone Hose Silicone Hose Auto Silicone Hoses

    BMW 1 series E87 118d 120d Intercooler To EGR Silicone Hose

    Fits E87 118d & 120d 3 Ply Silicone 3 Colours
    Regular price £29.86
    Sale price £29.86 Regular price
  • BMW E46 3 Series 330D Top EGR Intercooler Turbo Silicone Hose Silicone Hose Auto Silicone Hoses

    BMW E46 3 Series 330D Top EGR Intercooler Turbo Silicone Hose

    Fits E46 330D 3 Ply Silicone 3 Colours
    Regular price £19.56
    Sale price £19.56 Regular price
  • BMW MINI Cooper S R53 R52 MK1 Silicone Radiator Coolant Hoses - 15 Piece Kit Auto Silicone Hoses

    BMW MINI Cooper S R53 R52 MK1 Silicone Radiator Coolant Hoses - 15 Piece Kit

    Clip Kit Optional OEM Upgrade High Temp
    Regular price From £89.95
    Sale price From £89.95 Regular price
  • Chevrolet Captiva 2.2 Silicone Intercooler Turbo Hose Pipe Silicone Hose Auto Silicone Hoses

    Chevrolet Captiva 2.2 Silicone Intercooler Turbo Hose Pipe

    3 Ply Silicone Clips Optional 3 Colours
    Regular price From £18.53
    Sale price From £18.53 Regular price
  • Continuous Silicone Hose Silicone Hose Auto Silicone Hoses 13mm 1 Metre Black

    Continuous Silicone Hose

    3 & 4 Ply SAEJ20R3 Continuous Lengths
    Regular price From £15.31
    Sale price From £15.31 Regular price
  • Filtech Air Filter Induction Kit For Audi A3 8P 1.6 2004 - 2013  Auto Silicone Hoses
    Sold out

    Filtech Air Filter Induction Kit For Audi A3 8P 1.6 2004 - 2013

    68/70mm MAF Cone or Foam 3 Colours
    Regular price £81.10
    Sale price £81.10 Regular price

SAEJ20R3

The SAE J20R3 collection is specifically engineered for automotive coolant and heater applications, adhering to the stringent standards set by the Society of Automotive Engineers. These hoses are designed to deliver reliable performance in a wide range of vehicles, from passenger cars to heavy-duty trucks, where effective fluid transfer is crucial for engine cooling and temperature regulation. With a focus on durability, flexibility, and safety, the SAE J20R3 hoses provide dependable solutions for automotive cooling systems.

Constructed from high-quality elastomers, the SAE J20R3 hoses offer excellent resistance to heat, abrasion, and chemical exposure, ensuring long-lasting performance in demanding environments. Their robust material composition allows them to withstand high pressures and fluctuating temperatures, making them ideal for both hot and cold coolant applications. This durability minimizes maintenance needs and extends the service life of the hoses, providing peace of mind for vehicle owners and operators.

Flexibility is a defining characteristic of the SAE J20R3 collection, allowing for easy routing and installation in tight engine compartments and complex configurations. The lightweight design of these hoses makes them easy to handle and manoeuvre, enabling efficient installation without compromising on performance. This flexibility is essential in automotive applications, where space constraints often require precise positioning of components.

Safety is paramount in the SAE J20R3 collection, with each hose designed to meet or exceed the rigorous performance standards set by the SAE. The hoses feature reinforced layers that enhance burst resistance and prevent leaks, ensuring a stable and secure flow of coolant. This commitment to safety is crucial for maintaining optimal engine performance and preventing overheating, making these hoses a trusted choice for automotive applications.

The SAE J20R3 hoses are also designed to operate effectively across a broad temperature range, maintaining their flexibility and structural integrity under both extreme heat and cold conditions. This adaptability makes them suitable for diverse climates and driving environments, ensuring that they continue to deliver reliable coolant flow regardless of external factors.

What does SAE J20 R3 mean?

It is the Society of Automotive Engineers standard for coolant and heater hose. R3 designates a heavy-duty, reinforced hose suitable for engine coolant service - the specification the great majority of original-equipment radiator and heater hoses are built to. When a hose carries this rating you know its construction, temperature capability and pressure margin have been tested to a recognised benchmark.

What is in this collection?

Everything in our range built to that standard - silicone straights, elbows in all four angles, reducers, reducing elbows, couplers, continuous coil hose and wire reinforced SuperFlex, plus rubber radiator and heater hose, moulded rubber elbows and coupling joiners, and the vehicle-specific coolant and intercooler hoses and kits that use J20 R3 material.

What temperature and pressure does it cover?

Our silicone hose to this standard runs -50C to +250C continuously, with working pressures from around 12.33 bar on the smallest bores down to 2.8 bar on the largest and burst up to 37 bar. Rubber hose to the same standard runs -30C to +120C. Both are glycol rated for standard antifreeze mixes.

Can I use J20 R3 hose for fuel or oil?

No. J20 R3 is a coolant and heater specification - both the silicone and the EPDM rubber versions swell and degrade in contact with petrol, diesel and oil. For hydrocarbons you need SAE J30 R6 hose, which is our fluorolined silicone and our rubber fuel and oil range. Check the specification on the product page before you order.

Does the standard tell me what size to buy?

No - the standard covers construction and performance, not dimensions. Order by internal diameter, matched to the outside diameter of the pipe stub the hose slides onto. Measure the pipe with vernier callipers rather than the old hose, which will have stretched in service and reads larger than the pipe it was on.

Is silicone or rubber better within this standard?

Both meet the standard; they differ in service life and temperature headroom. Rubber to J20 R3 is the like-for-like replacement at lower cost and runs to +120C. Silicone to the same standard runs to +250C and does not perish or harden with age. For a standard vehicle rubber is correct; for a hot-running or hard-to-access application, silicone.