Original BEHR Viscous Cooling Fan & Clutch Assembly - Mercedes-Benz W111 / W108 / W109 (280 SE 3.5 V8)

This is a genuine Original BEHR Viscous Fan Clutch and 6-Blade Aluminum Fan Assembly, factory-equipped on the M116 3.5L V8 engine found in classic Mercedes-Benz W111, W108, and W109 chassis. This heavy-duty mechanical cooling fan utilizes a temperature-sensitive bimetallic strip to engage the fluid coupling, ensuring maximum airflow through the radiator only when engine temperatures rise, thereby saving horsepower and reducing noise at higher cruising speeds.

Key Specifications

• Product Type: Original Equipment (OE) Viscous Fan Clutch & Blade Assembly

• Manufacturer: BEHR (Clutch marked "BEHR VISCO LÜFTER") / Mercedes-Benz

• OE Part Number Reference: 108 205 10 06 (Stamped on the fan hub center)

• Blade Configuration: 6-Blade Asymmetrical Design (Reduces harmonic resonance/noise)

• Material: Cast Aluminum (Fan Blades & Clutch Housing)

• Hardware Included: Complete assembly including the fan blades bolted to the viscous clutch hub.

Key Features

• Authentic OE Stamping: Features the prominent Mercedes-Benz star logo and the "108 205 10 06" part number cast directly into the rear aluminum hub.

• Bimetallic Thermal Activation: The front of the clutch features the original BEHR bimetallic strip mechanism which reacts to radiant heat from the radiator to engage the internal silicone fluid coupling.

• Heavy-Duty Cast Aluminum: Unlike modern plastic replacement fans that become brittle and shatter, this original cast aluminum fan is practically indestructible and highly sought after for authentic restorations.

• Asymmetrical Blade Design: The uneven spacing of the 6 blades is a specific factory engineering feature designed to break up harmonic noise (the "howling" sound) at high engine RPMs.

Fitment & Applications

• 1969–1971 Mercedes-Benz W111 (280 SE 3.5 Coupé & Cabriolet)

• 1968–1972 Mercedes-Benz W108 (280SE 3.5, 280SEL 3.5)

• 1968–1973 Mercedes-Benz W109 (300SEL 3.5 V8)