Koyorad: Alloy Radiator: MAZDA Savanna / RX-7 FC3 85-89
Upgrade your Mazda Savanna/RX‑7 FC3 (1985–1989, manual) with the Koyorad KH060642 48 mm Alloy Radiator. Featuring a robust HH-Series 48 mm hyper core, this high-performance radiator delivers around 30–35% more cooling capacity than the stock unit, enhancing thermal control during spirited driving and track use. Crafted from all-aluminum and precision TIG-welded with Nocolok brazing, it provides OEM-quality reliability and durability. The direct-fit design retains stock fan shrouds, hoses, mounts—and includes a billet filler neck plus an 1/8″ NPT sensor port for aftermarket gauges. A plug-and-play upgrade ideal for both daily driving and high-performance builds.
USA Part Nos.: HH060642
OEM Part Nos: N/A
Car Models: Savanna / RX-7 FC 1.3 10/85-
Engine code(s): 13B-T
Diagrams:
Koyorad Code Notes
KS* 25mm core thickness, 1 row
KV* 36mm core thickness, 2 row
KH* 48mm core thickness, 2 row
KL* 53mm core thickness, 2 row
V / U06* at the end = deviation from OE
R* at the end = widerfin pitch
N* at the end = N flow, a partition in the tank to create N shape coolant flow for better cooling efficiency, triple pass
Material is Full Aluminum
Transmission - ALL MT type (No oil cooler), except for models with w/ OC indication. AT needs external oilcooler.
Fillerneck - All radiators with fillerneck are excl caps, these require the old system caps.
Please note that all cross references information are subject to errors and changes. Stock Images Used. Actual Product May Vary.