Viscous coupling – Mercedes M100 M108 M110 M114 M116 M121 M129 M130 Engine

Description

Viscous coupling for classic Mercedes models – OE-quality reproduction

This viscous coupling is a carefully selected, OE-quality reproduction part developed for the reliable operation of the cooling system in classic Mercedes models. The construction, dimensions, and operation closely match the original factory specifications, forming a technically sound and affordable alternative to the original part.

Suitable for Mercedes models

• Mercedes R107 and C107 – 280 SL and 280 SLC (1971–1989)
• Mercedes W108 – 250 S, 250 SE, 280 S, 280 SE and 280 SEL 3.5 (1965–1972)
• Mercedes W109 – 300 SEL 2.8, 300 SEL 3.5 and 300 SEL 6.3 (1965–1972)
• Mercedes W110 – 200 and 200 D (1960–1968)
• Mercedes W111 – 250 SE, 280 SE and 280 SE 3.5 (1961–1971)
• Mercedes W113 Pagode – 250 SL and 280 SL (1963–1971)
• Mercedes W114 Strich Acht – 250, 250 C, 280, 280 C, 280 CE and 280 E (1968–1976)
• Mercedes W115 Strich Acht – 220, 220 D and 240 D 3.0 (1968–1977)
• Mercedes W116 – 280 S and 280 SE (1972–1980)
• Mercedes W123 – 280 E, 300 D, 300 TD and 300 Turbo-D (1976–1987)
• Mercedes C123 – 280 CE (1976–1985)
• Mercedes S123 – 280 TE, 300 TD and 300 Turbo-D (1977–1985)
• Mercedes G-Class W460 – 280 GE and 300 GD (1979–1993)
• Mercedes G-Class W461 – 300 GD (1989–2023)

Suitable for Mercedes engines

Gasoline engines

• M100
• M108
• M110
• M114
• M116
• M121
• M129
• M130

Diesel engines

• OM617
• OM621

Reliable operation of the cooling system

The viscous coupling automatically regulates the speed of the mechanical cooling fan depending on the engine temperature. When the engine is cold, the fan rotates only briefly, preventing unnecessary power loss. As the temperature rises, the coupling gradually takes over more of the drive, ensuring the engine remains optimally cooled under all conditions.

Developed for classic Mercedes engines

This viscous coupling is tuned to the characteristics of classic Mercedes engines. The high-quality silicone filling and temperature-sensitive control ensure predictable and reliable operation, even during hot summer days, traffic jams, or long journeys.

OE-quality reproduction with perfect fit

This part has been carefully selected for fit, sizing, balance, and durability. With a pitch circle of 76.0 mm, a centering diameter of 60.0 mm and four mounting holes This viscous coupling meets the original dimensional specifications. This allows for direct replacement without modifications, and installation is trouble-free when used correctly.

The construction and dimensions correspond to the original version, making this viscous coupling extremely suitable for the maintenance, overhaul, and restoration of classic Mercedes models.

Increases riding comfort and protects the engine

A properly functioning viscous coupling prevents overheating, limits temperature fluctuations, and contributes to smooth and efficient engine operation. This prevents unnecessary strain on the cooling system and premature engine wear.

Key benefits

1. OE-quality reproduction with excellent fit.
2. Reliable temperature-dependent fan control.
3. Prevents engine overheating.
4. Ensures a stable operating temperature.
5. Affordable alternative to the original part.
6. Ideal for maintenance, overhaul, and restoration of classic Mercedes models.

Installation and maintenance

Always check the vehicle application before installation and compare the part with the original viscous coupling. Installation is preferably carried out by a qualified mechanic.

A defective or worn viscous coupling is not always immediately recognizable. Replacement is recommended in the event of decreasing cooling performance, rising engine temperature, or a continuously running fan to prevent overheating and engine damage.

Always check before purchase and installation whether the part is suitable and equivalent based on photos, description, and specifications; installed or used parts cannot be returned.