Having starting problems with your vehicle? This WMPHE neutral safety switch might be the solution! This crucial component replacement fits multiple GM vehicles including Cadillac Escalade (1999-2003), Chevy Silverado (1999-2003), GMC Sierra, Yukon, and many more. Replaces OEM part numbers 352-3201, 24229422, NS85T, and several others. Made from durable PCT plastic and iron with anti-oxidant zinc coating for corrosion resistance and long service life. This switch serves as both your park/neutral position sensor and backup lamp switch - it's what allows your vehicle to start only in park or neutral and turns on your reverse lights when backing up. If your engine won't start normally, starts in any gear, or your reverse lights don't work, it's likely time to replace this switch. Easy installation for most mechanics or experienced DIYers. Keep your vehicle safe and functioning properly with this quality replacement part that meets or exceeds original equipment standards. Don't risk being stranded - replace that faulty switch today!