Tomei  Main Stud Set  RB26 RB25 RB20

Tomei Main Stud Set RB26 RB25 RB20

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Nissan Skyline GT-R Parts – Tomei Main Stud Set RB26, RB25, RB20

Tomei Main Studs are designed to secure the crank bearing caps. This maintains strict metal clearances even at high rpms and high load, eliminating forces from bend, or torsion vibration. With stock bolts, these tolerances cannot be maintained at high rpm or load, causing bolt stress and bolt damage. Tomei Main Studs are designed to withstand these forces with dynamic thread design, and even bolting force throughout the entire bolt thread range.


Part No.








- Bolt SNCM439 WPC Finish

- Nut SCM435


Long Bolt x 3
Short Bolt x 11
Nut x 14


  • High-quality craftsmanship from Tomei
  • SNCM439 & SCM435 material for superior strength
  • Tensile strength 220,000psi
  • Hardness HRC40~50
  • Suitable applications: All RB26DETT, RB25DET, RB20DET

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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

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Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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