Genuine OEM Audi Chain Tensioner, part number 03C109507BA. This component is responsible for maintaining the correct tension within the engine's timing chain system, ensuring synchronized operation of internal components. It is a critical part of the timing system. The tensioner has dimensions of 0.078m x 0.045m x 0.05m and weighs 0.102 kg. Genuine OEM chain tensioners are vital for engine longevity and performance, as they are manufactured to precise tolerances to prevent chain slack and potential damage.

Catalogue entry: TENSIONER.

Fitted with: 03C109158H timing cha, 03C109469K RAIL, 03E109511 bearing pin, 03C109509P RAIL, N91097201 SCREW.