Warning about seriously-defective aftermarket lorry brake drums

Operators are being warned by the Driver and Vehicle Standards Agency (DVSA) about seriously defective aftermarket brake drums that may be fitted to Scania P400 lorries within their fleet.

Says the DVSA: “We are aware of two cases where aftermarket drums, which were not manufactured or supplied by Scania, have failed on P400 lorries.

No front braking

Both lorries were left without front braking and were fully laden, says the DVSA.

The drums failed in the same way when the braking surface fractured and separated from the mounting ring.

It is believed that this was not due to normal wear and tear.

Adds the DVSA: “We have been unable to identify the manufacturer but an image of one of the failed drums is shown above.”

DVSA says: ‘Let us know’

The DVSA is asking operators to let us know if they have similar drums fitted to their lorries and the supplier of those drums by calling it on 0117 9543425 or emailing [email protected]

Vehicle safety defects can also be reported at DVSA’s online vehicle recalls and faults service 

OEM parts ‘are the safest’ says Scania

“These cases bring into sharp focus the need for operators to use only parts sourced from Scania,” comments Mark Grant, Services Director for Scania (Great Britain) Limited. 

“Our drum brake system has been developed for maximum safety with components developed as individual parts within a complex system to ensure long service life and optimum performance in a vulnerable environment.

“As part of this system, Scania brake drums have been developed for minimal wear and to counteract cracking, even in high temperatures. The material in the brake drum is dimensionally stable, providing consistent performance throughout the entire service life.

“Scania brake drums, shoes and linings have been designed and thoroughly tested in respect of shape, friction and heat generation, in order to prevent vibration and screeching.

“Regarding brake drums available through Scania’s VRS parts programme for other marques, these are also manufactured and tested to the original equipment manufacturers (OEM) standard.

“As a safety-critical item, I would therefore strongly urge operators to always contact their local Scania dealer whenever the time comes to replace any component within their vehicles’ braking system.”

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