Belt Drive Kit Fits For:Mercedes-Benz CLS550 2007-2009
OEM part numbers For Tensioner And Idler Pulley:38319, 36372
Recommend:The most suitable belt for ATPPCCE 90K-38319B should be K060947 or 6PK2400
Belts、tensioners and idler pulleys are designed to the same life cycle,when one of them is replaced,the othes had likely met their design cycle as well, so it is recommended to replace all of them when replacing one of the parts just wanna avoid to having the influences of other accessories'service life
For more detailed assembly information, check out our instruction section. If there is any problem with our belt tensioner assembly, please feel free to contact us and we will solve it for you in time