This latest engine belt tensioner fits OEM numbers 51958007459 and 51958007428 exactly. It is well compatible with MAN TGA, TGS and TGX trucks for everyday running conditions. This component keeps the drive belt at the right tightness during full engine operation. It effectively prevents belt slip and guarantees stable working status of the engine. Made of solid, anti-wear raw material, this spare part delivers long working durability. It can bear continuous friction, engine shake and high temperature in long-hour workloads. All finished pieces are made strictly following official OEM technical rules. It comes with precise overall sizes for quick installation, perfect to substitute worn or damaged original belt tensioners.