Performance Koyo Radiator, Mazda RX7, FC S5, Dual Pass, 89-92 (KH060643U06)

NOTE: Koyorad radiators do not come with radiator caps.  Correct Koyo Hyper Cap is SK-C13

KOYO-KH060643U06

International part number KOYO-HH060643N

Used by Koyorad USA HH Series 48mm Radiator Core Koyorad's new 48mm HH Series radiator core features an ultra high fin density to maximize heat transfer. Koyo designs and manufactures each radiator with precision; therefore each one is a direct-fit performance replacement for the stock OE plastic/aluminum radiator for a quick and simple installation with no modifications.

Koyo has also integrated a 1/8 NPT female accessory fitting (supplied with a threaded plug) to accept temperature sensors typically included with aftermarket temperature gauges. N-FLO Technology When factory equipped radiators have inlet and outlet locations that allow proper placement, Koyorad carefully welds aluminum partitions in the upper and lower tanks of the radiator. This is Koyorad's N-Flo Technology which allows for a double or triple pass radiator. This design cools more efficiently by allowing the coolant to remain in the radiator for a longer period of time therefore transferring more heat to the surrounding air.

N-Flo Technology is available on cars that are known to have limited airflow to the radiator. Unless noted otherwise, all Koyorad N-Flo 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.

Fitment: 1989-1992 Mazda FC RX-7 S5 13B and 1989-1992 Mazda FC RX-7 S5 13BT Tech

Notes: Not compatible w/ OEM intake snorkle, requires minor trimming of the OEM fan shroud. Use OEM side brackets. OEM brackets are Series 4 or Series 5 specific. Replacing R1144N.