Welcome.

Westbay NAPA Auto Parts is the largest independent auto parts chain in Washington State. We have expanded to 11 stores and joined the NAPA Auto Parts Program.We will continue to be locally owned and operated as we have been for over 50 years! Find a Westbay Napa store near you.
Westbay NAPA Auto Parts, Inc. has access to over 450,000 parts – the most extensive inventory in the industry. We provide you with the best manufacturer warranties which can be honored nationwide at over 6,000 NAPA stores.

Your satisfaction is our primary goal. Whether it’s providing excellent advice or quality lifetime warranty parts, NAPA Auto Parts is the name that can be trusted.