Features Condition: Brand New Vacuum Power Brake Booster Direct Replacement, Easy Installation Strict QC & Fitment Tested High Customer Service Satisfaction Free Standard Shipping & After Service Follow Up 30 Days Money Back Guarantee One Year Warranty Part Name: Vacuum Power Brake Booster Brake Booster Diaphragm Style: Single Color: Black Diaphragm Diameter (in): 8.511 Diaphragm Diameter (mm): 216.1794 Master Cylinder Included: No Material: Steel Master Cylinder Stud Thread Size: M8 x 1.25 without Master Cylinder .