There's two different sets of Kaplan Lecture Notes
is the home study program (4 volumes) that is officially sold by Kaplan
and here's the link
Kaplan Home Study Program
Note these four volumes are not subject wise they are system wise and the information is significantly different from the course lecture notes. It includes more information in certain areas for example coagulation system and coagulation cascades, histology tissue types, ...etc things that are not seen in the lecture notes. However these volumes are less popular among students because of the high price and more pages with less high yield focus.
, is the Kaplan Lecture Notes
that are supplied to course subscribers, these books come in subject wise 7 books (Anatomy, Biochemistry, Physiology, Microbiology, Pharmacology, Biochemistry, and Behavior). These books are not sold stand-alone from Kaplan and you have to be course subscriber. They are the most popular among students since it's subject focused and very high yield.
However you can find many people selling used and even new lecture notes on Amazon.