Description
The CP Carrillo CPN-3406 piston ring set provides perfect fitment for 86.50mm (0.50mm oversize) CP Carrillo pistons in Yamaha SVHO, FZR, and FZS 1.8L engines. This maximum oversize ring pack maintains the championship proven 1.0/1.2/2.8mm configuration optimized specifically for CP-Carrillo’s high performance marine pistons. Engineered for extreme boost applications where cylinder pressure exceeds 250 PSI, these rings deliver flawless sealing under conditions that destroy lesser components.
Gas nitrided top ring technology resists micro-welding and galling, while the taper face Napier second ring maintains perfect oil control through 12,000+ RPM. The 3-piece flex vent oil ring provides ultimate wall wiping with zero oil consumption even after hundreds of hard hours. Precision bore sizing ensures rings seat on the first fire and maintain gap stability through the life of the engine.
- Exact fit 86.50mm CP Carrillo pistons in Yamaha 1.8L marine applications.
- 1.0mm chrome faced gas nitrided top ring for detonation and heat resistance.
- 1.2mm reverse bevel Napier second ring for superior oil control at high RPM.
- 2.8mm thin rail flex vent oil ring with optimal tension for marine conditions.
- Per piston pricing – complete engines require 4 individual ring sets.
- Proven combination specifically for CP-Carrillo high boost marine pistons.
CP Carrillo CPN-3406 rings are the final piece of the ultimate Yamaha 1.8L oversize rebuild puzzle. When maximum bore size meets maximum boost, only these precision rings can maintain perfect cylinder pressure and power delivery through championship winning seasons.






