If your Chevy Tahoe from 2002-2005 is having fuel system issues, this REPAIROCK fuel pressure regulator might be just what you need. This solid metal replacement part (OE numbers PR287/89017382) is built to last with corrosion-resistant materials that can handle high temperatures without deforming. The cool thing about this regulator is it's adjustable from 20 to 70 psi, so you can really dial in the perfect pressure for your vehicle. What does that mean for your driving? Well, you'll notice quicker starts and better power when you're accelerating - it just makes the whole driving experience smoother. The built-in diaphragm keeps your fuel pressure steady in the oil circuit, which helps prevent annoying issues like stalling or performance problems. Quick heads up - this is definitely a job for someone who knows their way around car repairs, and no installation instructions come in the package. Make absolutely sure it fits your specific Tahoe model before ordering. Works with both gasoline and diesel engines. Just one regulator in the package, but it's the quality part your fuel system needs for reliable performance.