West Series races at Kern

The ARCA Menards Series West has held several races at Kevin Harvick's Kern Raceway (formerly Kern County Raceway Park) in Bakersfield, California over the years. The track currently has two races for the series, the MMI Oil Workers 150 in April and the NAPA Auto Parts 150 in October. The West Coast Stock Car Motorsports Hall of Fame serves as a presenting sponsor of both races.

Races at the track have varied from 63 miles to 88 miles. Currently, the track's races are 75 miles in length.

Past winners

 * 2014, 2017, 2019: Race extended due to a Green–white–checker finish.