Nissens Fan Clutch

ENGINE

COOLING

SYSTEM

Excellent replacement part from Nissens.

Designed, manufactured, and tested to ensure optimum performance, long, trouble-free operation, and thus reliable system performance.

LEARN THE DIFFERENCE

THE DIFFERENCE

COMPETETIVE RANGE

EFFICIENT, RELIABLE & SAFE OPERATION

EASY INSTALLATION WITH FIRST FIT

PASSENGER CARS

LIGHT COMMERCIAL VEHICLES

TRUCKS

TECHNICAL SUPPORT

EXTENDED DURABILITY & PERFORMANCE

COMPETITIVE RANGE

EFFICIENT, RELIABLE & SAFE

HIGH MODULATION ABILITY

SMOOTH SPEED TRANSITION

EXTENDED DURABILITY

PRECISE OPERATION

TROUBLE-FREE CONNECTION

Nissens’ program for fan clutches covers the most popular European truck applications.

The part has been designed, manufactured, and tested to our premium quality standard.
It includes a comprehensive test series, design, and material improvements, ensuring optimal performance and a long, trouble-free operation.

COMPONENT FUNDAMENTALS

Fan clutches_solo with blades.jpg

ROLE

The fan clutch is a device controlling the engagement of the EC fan. A valve inside the clutch regulates the flow of a special silicon oil. The oil transmits the engine’s torque thus, rotating the fan.

OPERATION

The fan clutch can be driven by a belt and pulley or directly by the engine when mounted on the engine’s crankshaft. Depending on the cooling needs, the fan can be engaged partially or fully - saving the engine power used for the power transmission.

There are two design types of the sensor causing the clutch to engage. One with a bi-metallic, thermostatic sensor controlling the engagement and another controlled electronically by ECU signals, influenced by engine/transmission oil temperature, coolant temperature, AC system pressures or ambient air temperature.

IMPORTANT TO KNOW

The clutch must never be repaired nor opened. The fan clutch is filled with viscous oil and opening the unit will interfere with the system.

Proper fan clutch modulation is crucial for optimized fan speed, as this affects cooling and engine performance. A good quality clutch can modulate the fan speed with a smooth activation between engagement and disengagement.

Common symptoms of the fan clutch failure: overheating at idle or when driving in urban traffic, ineffective climate system performance, drop in engine power, grinding noises from the engine compartment or no warm air produced by the heater.

The fan clutch is a vital engine cooling product. If not working correctly, it will consume too much engine power, leading to increased fuel consumption. A faulty fan clutch will also cause poor temperature control. Therefore, it is essential to pay attention to the state of the fan clutch.

When the fan clutch needs to be replaced, it must be done by a professional repair shop using high-quality spare parts only.