Part # 90285002
Wunderlich Heat Shield for Radiator Hose

The heat shield plate for the radiator hose performs two important functions. It protects the hose itself from heat radiation coming directly from the manifold and also reduces the risk of the cooling water being heated up further (unnecessarily) by the radiant heat of the manifold.

So why is this rather unassuming part so important?
The return hose, through which the cooled water exits the radiator and is returned to the engine, is routed closely (one finger's width) past the exhaust manifold of the front cylinder. The manifold, which is not positioned in the cooling air stream but rather sits in the shade created by the radiator, is therefore unable to dissipate heat by convection and must instead rely solely on radiation. Since space is at a premium here, the thermal radiation therefore hits various components, including the radiator hose.

This not only leads to unnecessary additional thermal stress for the radiator hose, as well as the material stress associated with this, but also means that the water which has only just been cooled down is then heated up again unnecessarily in the area of the front manifold. This reduces the performance of the cooling system, particularly on long motorway rides or when traveling in high mountain regions. In certain operating conditions, such as when riding at altitude, the engine can then quickly start to overheat. Trips like this are a favorite for those with American adventure motorcycles.

Our heat shield plate provides thermal shielding for the radiator hose from the manifold and can help reduce the heat entering the cooling water from the manifold, which in turn reduces the risk of overheating. It also protects the hose.

The heat shield plate comes with an insulating heat protection wrap and is simply screwed down to the bracket which also attaches to the radiator.The shield plate fully encloses the hose on the side facing the manifold. The metal is heat-reflecting, which boosts the insulating effect of the heat protection wrap.

Function

•  The heat shield plate for the radiator hose protects the hose and the cooling water from heat radiation coming from the manifold
•  It also reduces
•  the risk of the cooling water being heated up further (unnecessarily) by the radiant heat of the manifold
•  the risk of the engine overheating
•  material stress to the radiator hose due to the unnecessary additional thermal load

•  Together with heat protection wrap, the heat shield plate offers protection from heat radiation
•  Easy to fit to an existing screw connection point

Specifications

    Material: Heat shield plate, carefully processed aluminum, precise angles, matt black powder coated, Heat protection wrap, PRT fabric with excellent temperature stability from -40°C to +150°C
    Color: Black

Your Wunderlich benefits

•     Wunderlich. Small series. Hand crafted.
•     Exclusive by Wunderlich
•     Made in Germany

 Wunderlich
  90285-002