If your car's brakes feel mushy or the pedal is hard to press, your brake booster might be failing. This Cardone remanufactured unit (part #54-73183) is a solid replacement. It's been taken apart, cleaned, inspected, and rebuilt with new seals and any worn parts replaced, so it performs like new. It provides that power assist you need, using engine vacuum to make braking easy and responsive. The kit includes new mounting nuts and washers for a proper install. It's been 100% vacuum tested to ensure reliability. Installation is straightforward if you're handy, but if you're not sure, it's best left to a mechanic. This is a critical safety component, so don't skip on quality. A cost-effective alternative to a brand-new OEM booster. Check compatibility with your vehicle's make, model, and year before ordering. Get your braking confidence back!