Thermal management best practice with Dayco

As technicians will be acutely aware, in order for vehicle manufacturers (VMs) to achieve the engine emission and fuel consumption reductions that have been imposed by worldwide legislation, every aspect of engine performance is minutely examined to ensure that all its systems work in unison.

Central to this objective is effective thermal management, which is why, with engineering partners such as Dayco, they have developed innovative solutions or new concepts to ensure their engines not only reach their operating temperatures as quickly as possible, but are maintained at these optimal working levels.

Electric water pumps that can be activated instantaneously, alongside imaginative design solutions for mechanical pumps, such as those with vane shields or Dayco’s friction wheel, which can provide an instant response to coolant temperature changes, therefore play an important part.


Over the last few years, VM’s have also moved to integrate the water pump into the primary drive (timing) system, rather than it being driven by the auxiliary belt.

This has a direct effect on the aftermarket because, in contrast to the auxiliary belt, which rarely has a scheduled replacement interval, the timing belt does and this means that technicians come into contact with the water pump more frequently than previously and it is therefore far easier for them to assess its condition. As a consequence, more are found to be either in need of replacement, or are being changed as a ‘best practice’ precaution, so sales are on the rise.

Helpfully, power transmission manufacturers such as Dayco, have proactively responded to this development by adding a water pump to their timing belt kits to provide workshops with a complete aftermarket replacement solution.

Designated by the KTBWP classification, each of Dayco’s 300 plus water pump kits includes the replacement pump alongside the belt, tensioner and idler combination, with 75 of these references containing the patented Dayco High Tenacity (HT) or ‘white’ belt.

These sit alongside its comprehensive thermostat range, which together provide independents with a complete, original equipment (OE) quality, thermal management solution.

“Sometimes, for the best of intentions, workshops will try to save their customers money and replace only the belt and its ancillary components,” says Dayco UK’s National Sales Manager, Steve Carolan. “However, this policy runs the risk of their customers having to face a much larger bill to virtually replicate the job, if the water pump goes on to fail at a later date.

“As a timing belt replacement is a relatively expensive, although extremely important scheduled service requirement, there is complete logic behind changing both the water pump and timing belt at the same time, as it is a far more cost effective solution for motorists in the long run and also gives the them confidence that their vehicle has benefitted from a full and thorough system overhaul.

“Therefore, for the peace-of-mind of the owner, as well as the most profitable result for the workshop, Dayco recommends they opt for a full timing drive system replacement, rather than change just the water pump or timing belt in isolation.” “As well as providing the replacement components that correctly reflect the developing technology of the vehicle parc, another benefit from the workshops perspective is the ability to be able to fit a wider range of thermal management products from a single trusted supplier.

“OE derived components provide workshops with a number of tangible benefits from premium quality and fit first time installation, to increased durability and reduced warranty claims. In addition however, when they fit an HT water pump/timing belt kit, Dayco can also provide them with an even greater level of reassurance by offering the opportunity to extend the existing two-year warranty by a further year.

“The Long Life +1 year warranty is a perfect example of how Dayco’s technology can provide workshops with a ‘real-world’ competitive advantage over those fitting other brands.

It also gives the motorist a level of protection that cannot often be matched, even by the franchised dealer. “The combination of guaranteed OE quality products, which provide a wide-ranging thermal management offering, and product support such as the Long Life +1 year warranty, makes Dayco a great choice for workshops.” For more information regarding the OEM quality power transmission products in the Dayco range, please email: or visit:

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Published on: July 13, 2020

Filled Under: Technical Articles

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