This is a completely new brake master cylinder for 1952-1955 (1st Series) Chevrolet & GMC trucks. 1-1/8" Diameter Bore. Replaces GM# 5454459
1952 1/2 ton models;
1953-1955 (1st series) All Commercial (exc. Double Duti or Hydramatic Transmission)
This part fits most 1952 1953 1954 1955 Chevrolet Trucks; exceptions may apply. Please read the complete description to see if this part fits your specific vehicle and application.
This product can expose you to a chemical, which is known to the State of California to cause cancer or reproductive harm.
For more information go to www.P65Warnings.ca.gov