Looked at the listing...that is the basic master cylinder kit for a 1951-55 Kaiser (same master cylinder as used on 1949-51 Ford cars and light trucks). You will see an illustration of the bits in the 1951 Kaiser and Frazer Shop Manual Kaiser-Frazer put out. It's in the BRAKES section, on page 211.
To be able to work on your 1951 Kaiser you should get the following as soon as you can if you don't have these items already:
- 1951 Kaiser & Frazer Shop manual from Kaiser-Frazer Corporation
- 1951 Kaiser Orange cover 1951 Illustrated parts list from Kaiser-Frazer Corporation
- If your car has Hydra-Matic, the 1951-53 Hydra-Matic Shop Manual