Hi Mike,
Just as Gyorgy.B said, Google is pretty smart and does realize that is crawling an E-Commerce site. The problem that you're mentioning has already been asked, and it might be of some help:
How to avoid keyword stuffing on e-commerce - Moz Q&A Keyword stuffind - E-commerce websites - Moz Q&A
Also, I'd recommend you to take a deep lonn read of these article, them will clarify you a lot about keywords stuffing and, generaly, about SEO on e-commerce:
5 things about Keyword stuffing and SEO SEO for E-commerce websites - KissMetrics
What is keyword stuffing - E-commerce
Of course, the general advise is to avoid this issue. I strongly recommend that ecommerce pages shuold be filled with content. At least some text that differenciate one page from another.
Hope this was helpful
GR