| ARCA Menards Series West | |
|---|---|
| Venue | Irwindale Speedway |
| Location | Irwindale, California, California, United States |
| Corporate sponsor | NAPA Auto Parts (July 4 race as title sponsor, July 6 race as presenting sponsor) West Coast Stock Car Motorsports Hall of Fame (July 6 race as title sponsor, July 4 race as presenting sponsor) |
| First race | 1999 |
| Distance | 75 mi (120.701 km) |
| Laps | 150 |
| Previous names | First races Irwindale 250 presented by Jan's Towing (1999) Home Depot 250 (2000) Food 4 Less 250 (2001) Jani-King 200 (2002) King Taco 200 (2003, 2006–2007, 2009–2010) NAPA 150 presented by Southern California Pipe Trades (2004) King Taco 150 (2005) California Highway Patrol 200 (2008) Southern California Toyota Dealers 200 (2011) NAPA Auto Parts 150 (2014, 2021-2022) King Taco Catering / NAPA Auto Parts 150 (2015) Toyota / NAPA Auto Parts 150 (2016) NAPA Auto Parts Twin 100 (2017) ENEOS NAPA Auto 150 (2019) ENEOS 125 presented by NAPA Auto Parts (2020) Second races Snap-on 250 Benefitting City of Hope (1999) Home Depot 250 (2000) Food 4 Less 250 (2001) NAPA 150 presented by So Cal Pipe Trades (2004) King Taco 200 (2006) Pipe Careers 200 presented by Pipe Trades (2008) NAPA Auto Parts Twin 100 (2017) NAPA Auto Parts 150 presented by Sunrise Ford (2021) NAPA Auto Parts 150 presented by the West Coast Stock Car Motorsports Hall of Fame (2022) NAPA Auto Parts BlueDEF 150 presented by the West Coast Stock Car Motorsports Hall of Fame (2023) Former third races Home Depot 300 (2000) Jani-King 250 presented by NAPA (2001) |
| Most wins (driver) | Austin Cameron (5) |
| Most wins (manufacturer) | Chevrolet (15) |
| Circuit information | |
| Surface | Asphalt |
| Length | 0.50 mi (0.80 km) |
| Turns | 4 |
The ARCA Menards Series West has held several races at Irwindale Speedway in Irwindale, California over the years. The track currently has two races for the series which are both in July: the NAPA Auto Parts 150 on July 4 and the West Coast Stock Car Motorsports Hall of Fame 150 on July 6. Races at the track have varied from 50 miles to 150 miles in length.