Nissan Skyline R33 R34 GTR Piston Ring Set, Standard Bore RB26DETT (V-Spec/N1)

Fresh piston rings are essential when refreshing or rebuilding the legendary RB26DETT in your R33 or R34 Skyline GT-R. The Genuine Nissan Piston Ring Set (part number 12033-24U20) is the factory-correct OEM replacement for standard 86mm bore engines. This complete kit includes the top compression ring set, second compression ring set, and oil control ring set, delivering the precise tolerances and materials Nissan engineered for optimal sealing, oil control, and long-term durability.

Originally specified for high-performance variants such as the V-Spec, V-Spec II, N1, and Nür/M-Spec models, these rings are ideal for non-bored RB26DETT engines. They restore proper compression, reduce oil consumption, and ensure smooth break-in characteristics, helping maintain the RB26’s renowned power delivery and reliability whether on the street or the track.

At Terra Firma Automotive, we supply this genuine Nissan Standard Bore Piston Ring Set as the authentic choice for R33 and R34 GT-R engine builders and restorers. As a brand-new OEM kit, it guarantees perfect fitment and factory-level performance that aftermarket rings often cannot match. Whether you’re performing a top-end refresh or a full rebuild, these rings help keep your RB26DETT strong, efficient, and ready for serious use.

 

• Genuine Nissan OEM Piston Ring Set (Standard 86mm Bore)
  
• For R33/R34 Skyline GT-R RB26DETT (including V-Spec/N1)
• Can Be Used On Any RB26