As an automotive hobbyist, Im always on the lookout for reliable replacement parts. My analysis of this product showed that it was a solid choice for my needs. The Charge Assembly 31630 ZJ1 802 GXV610 GXV620 worked as expected and was easy to install .The quality construction is apparent and it started up my engine without any problems. The one downside is that it's a bit pricey compared to other options on the market..