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Koyo R Series Aluminum Radiator 74-74 Datsun 260Z 2.6L I6 (MT)

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R SERIES 53mm Core Thickness

Built with a robust 53mm core, the R-Core Series is engineered for the serious performance tuner. Increased capacity means better cooling reserve when you need it. Intended for both circuit and daily use, you may double your coolant capacity and see up to 35% increased performance over your stock radiator. Unless noted otherwise, all Koyorad R-Series All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans. See notes in individual item descriptions for details.


Nocolok Brazing is used in all Koyorad Racing Radiators. This ensures maximum durability, strength and anticorrosion protection. Nocolok Brazing uses anticorrosive flux, encouraging even flow of over fins and tubes forming a strong bond in our furnace. With over 50 years of experience in manufacturing OE replacement radiators certifies our consistent high quality and durability.

Fitment Notes

For 74-74 Datsun 260Z 2.6L I6 (MT) (Engine: 2.6L I6, Transmission: MT, Note: Crossflow,design. Replace OEM top rubber hose with a modified OEM bottom hose. Bottom tube will accept OEM bottom rubber hose. Does not have fan shroud provisions, OE style mechanical fan recommended.)

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Shipping Information

  • Item Requires Shipping
  • 17.0 lbs.
  • W23.0000” x H8.7500” x L31.2500”
  • Free Shipping!