Main Stud & Bolt Kits

Main stud and bolt kits are critical for securing the main bearing caps in an engine's bottom end. These fasteners are designed to handle extreme loads and maintain consistent clamping force under high cylinder pressures and RPM. Whether you're rebuilding a stock engine or building a high-horsepower race motor, using quality main studs or bolts is essential for bearing longevity and overall engine reliability.

Our collection includes a range of kits for various engine platforms, each engineered to meet or exceed OEM specifications. Key features typically include:

  • High-grade steel alloys for superior tensile strength
  • Precision threads for accurate torque readings
  • Corrosion-resistant finishes (available on select kits)
  • Complete hardware included for a hassle-free installation

Check individual product listings for specific fitment, material specifications, and torque recommendations. Choose the right kit for your build and ensure your mains stay put under the most demanding conditions.

Can’t Find the Part You Need?

Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.

Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.

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