GATES Belt Tensioner V Ribbed Belt (T39017) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Width [mm]: 25, Rubber mm, Outer Diameter [mm]: 65 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with ALFA ROMEO, CADILLAC, FIAT, LANCIA and 4 other makes vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 0-N1503, 0-N1503S, 1204187, 12.15469 and 42 more. Matching these numbers confirms a like-for-like replacement with no loss of function. GATES is a recognised supplier of automotive engine timing components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.

Gates Corporation, founded in 1911 in Denver, Colorado, USA, is a world leader in power transmission belts and fluid transfer solutions. Gates specialises in timing belts, timing belt kits, serpentine belts, coolant hoses, and tensioner assemblies. As an OE supplier to virtually every major automotive manufacturer, Gates products are engineered to meet or exceed original specifications. With advanced rubber compound technology and precision manufacturing, Gates belts and hoses deliver dependable performance and are the first choice of professional mechanics globally.