About Endurapin LLC

Our Story

Endurapin LLC was founded in 2019 in Rapid City, South Dakota, with a clear mission: to create the best door pins and bushings that last a lifetime. We specialize in producing exceptionally durable door pins and bushings using aerospace-grade stainless steels. Our products are designed to be direct replacements for your stock pins and bushings, ensuring they never need to be changed again.

Our Mission

At Endurapin LLC, our mission is simple yet ambitious: to make door pins and bushings that last forever. We believe in quality, durability, and innovation, and our goal is to provide our customers with products that stand the test of time.

Our Products

We manufacture extremely strong door pins and bushings made from aerospace stainless steels. These products are not only built to be direct replacements for stock components but are also designed to last a lifetime. By using the highest quality materials and precision manufacturing processes, we ensure that our door pins and bushings will never need to be replaced.

  • Our Journey

    Since our founding in 2019, Endurapin LLC has continually expanded, always striving to launch new and improved products. All our products are made in-house using our precision machines, allowing us to maintain the highest standards of quality and craftsmanship.

  • Why Choose Us?

    Thousands of satisfied customers have experienced the Endurapin difference. Our products have breathed new life into worn-out doors, providing a durable solution that lasts a lifetime. Our commitment to quality and customer satisfaction sets us apart from the competition.

  • Join Our Community

    We invite you to join the growing community of Endurapin customers who have transformed their doors with our premium products. Discover the difference that aerospace-grade materials and precision engineering can make.