Genuine OE Quality Febi Timing Chain Tensioner - 33044. A timing chain tensioner is a device that applies a force to the chain to maintain its tension. There are tensioners for applying a tensioning force to drive belts and chains. Like the Timing Belt a Timing Chain is what controls the engines valve timing. Key Points Quantity Included: 1 Length (mm): 82 Outer Thread (mm): M 27 x 2.5 Spanner Size: 32 Material Made Of: Metal. Original febi bilstein spare part - Solutions „Made in Germany" Please use the vehicle identification at the top of the page to confirm compatibility with your vehicle. All restrictions must be observed! Length: 82 mm; Outside Thread: M27 x 2,5; Wrench Size (Metric): 32 mm; Material: metal; Weight: 0,220 kg OE numbers (for comparison purposes only): Alfa Romeo Romeo 71769984; FIAT 71769984; GM/Opel Zeichnungsnr. 12608580; Opel 4807 839; Saab 12 608 580; Vauxhall 12608580; OEM numbers (for comparison purposes only): Ruville 3453006 among others suitable for: Saab: 9-3 II, 9-3 II 4WD, 9-5 II, 9-5 II 4WD; Opel: Antara, Astra G, Astra GTC J, Astra H, GT, Insignia, Insignia Sports Tourer, Signum, Speedster, Vectra B, Vectra C, Zafira A, Zafira B; Vauxhall: Antara, Antara 4x4, Astra IV, Astra VI, Insignia, Insignia 4x4, Signum, VX, Vectra I, Vectra II, Zafira I, Zafira II; Alfa Romeo Romeo: 159, 159 Sportwagon, Brera, Spider; FIAT: Croma II.