The 4-part Kit with rigid flywheel is a replacement product for the Dual Mass Flywheel, specifically
developed by Valeo for the aftermarket.
The Dual Mass Flywheel aftermarket is an emerging market, resulting from developments in Original
Equipment over the past few years. This new technology has led to an increase in the cost of the
clutch function, which translates as a considerable increase in clutch repair cost when it becomes
necessary. Valeo has developed the concept of the 4-part kit, enabling a considerable reduction in
this extra cost, by proposing a more economical alternative.
In the 4-part kit, made of a rigid flywheel and a traditional 3-part kit, the vibration & noise
filtering function, normally performed by the Dual Mass Flywheel, is transferred to the WX disc,
which thanks to its long travel damper, has a high filtering capacity while transferring a high
This new technical solution from Valeo therefore replaces the Dual Mass Flywheel and the
original clutch kit, when a full system replacement is required.
The 4-part kit with rigid flywheel enables cost savings of up to 30% on the part price, a real
advantage for a product intended for vehicles that are already less than new.
For some vehicle applications, the 4-part kit also increases the lifetime of the part, by
increasing the friction surface.
Following the resounding success of the first kit launched in 2004, Valeo is extending the range
with two new part numbers to fit popular vehicles.
More generally, Valeo has launched a development program on this product range, and in the
coming months will introduce regular range extensions, in order to cover a considerable
number of vehicles originally fitted with Dual Mass Flywheels.