This week, 5 Auto Components stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

Drew Industries Incorporated (DW) boosts its rating from a B to a A this week. Drew Industries Incorporated makes components for recreational vehicles and manufactures homes. The company also gets A’s in earnings revisions, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of DW stock.

Standard Motor Products, Inc. (SMP) gets a higher grade this week, advancing from a C last week to a B. Standard Motor Products, Inc. is an independent manufacturer and distributor of replacement parts for motor vehicles in the automotive aftermarket industry. For more information, get Portfolio Grader’s complete analysis of SMP stock.

This is a strong week for Motorcar Parts of America, Inc. (MPAA). The company’s rating climbs to A from the previous week’s B. Motorcar Parts of America, Inc. manufactures replacement alternators and starters for imported and domestic cars and light trucks in the United States and Canada. The company also gets A’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of MPAA stock.

Goodyear Tire & Rubber Company’s (GT) ratings are looking better this week, moving up to a A from last week’s B. Goodyear Tire & Rubber Company develops, manufactures, distributes, and sells tires and related products and services worldwide. The company also gets A’s in earnings revisions, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of GT stock.

Stoneridge, Inc. (SRI) improves from a C to a B rating this week. Stoneridge, Inc. is an independent designer and manufacturer of highly engineered electrical and electronic components, modules and systems for the medium- and heavy-duty truck, agricultural, automotive and off-highway vehicle markets. The company also gets A’s in earnings surprise, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of SRI stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.