Walmart plans to add a new consumer service to its arsenal of offerings on Wednesday, teaming up with a website that helps customers comparison shop for auto insurance.

The website, AutoInsurance.com, allows consumers to review prices at several insurance companies and contrast them with their current insurance.

Effectively, Walmart and AutoInsurance.com will be marketing partners. Walmart will promote the website in its stores, and receive a monthly fee in return, while AutoInsurance.com will collect commissions when insurance is sold on its site. Customers will also be able to access the site from Walmart.com.

Daniel Eckert, senior vice president of services for Walmart U.S., said the company is using its size to broaden its offerings for customers and to get an edge on the competition. While some companies have rebounded more easily from the recession, Walmart’s core customer base, largely low-income people, has struggled to regain a foothold, so its sales have been sluggish.