The 504356836 is a genuine OEM belt tensioner designed for Fiat and Iveco commercial vehicles. This critical component maintains proper tension on the engine accessory drive belt, preventing slippage and ensuring efficient operation of components like the alternator, power steering pump, and air conditioning compressor. It is compatible with various Iveco Daily (including V, VI, and VII generations), Massif, and Eurocargo models. Manufactured to original equipment specifications, it provides reliable performance and durability for demanding applications. Weighing approximately 0.85 kg, it is engineered for a precise fit and long service life.