If you're dealing with brake issues on your Dodge or Jeep, this A-Premium master cylinder is exactly what you need! Specifically designed for 1997-1998 Dodge Dakota and 1997-2006 Jeep Wrangler models, this direct replacement matches OEM part numbers 4798157 and M390378. The 1-inch bore diameter aluminum construction ensures durability and reliable performance, featuring two outlets with M10x1.0 rearward and M12x1.0 secondary thread sizes. This complete unit comes with the reservoir included (though no sensor), making installation straightforward. A-Premium stands behind their quality with a solid one-year unlimited mileage guarantee, so you can hit the road with confidence. The aluminum alloy material meets or exceeds OEM specifications, ensuring proper fit and function. Whether you're a DIY mechanic or professional technician, this brake master cylinder delivers the performance you need for safe stopping power. Remember to always double-check your vehicle compatibility before ordering, and consider bleeding your entire brake system after installation for optimal performance. This isn't just another auto part - it's a critical safety component that deserves quality craftsmanship, which is exactly what you get with this A-Premium replacement. Keep your Dodge or Jeep running safely with this reliable brake master cylinder that won't let you down when you need it most.