Sachs Number: 1878 634 027Packing Unit: 1Supersedes: 1878 002 729Diameter [mm]: 420Number of Teeth: 10 Used in Vehicles: MERCEDES-BENZ MK MERCEDES-BENZ SK Materials: Steel: Bao Steel (best steel in China) Spring: 55CrSi ( 3.5 million using times) Facing: Raybestos, KEMA, KETE, ALWAYS (depends on ...