Koyorad: Alloy Radiator: Nissan Sylvia V8 Transplant Radiator
Upgrade your Nissan Silvia S13/S14 V8 swap or SR20/KA24 turbo build with the Koyorad KL020539V dual-pass alloy radiator featuring a thick 53 mm HH-Series Hyper core and advanced N-Flo dual-pass coolant routing. Designed specifically for left–right crossflow setups in V8 conversions, this all‑aluminum, TIG-welded and Nocolok-brazed unit delivers high-density cooling capacity, up to 35% better thermal efficiency over OEM radiators. It installs via a direct-fit using existing fan shrouds, hoses, and mounts, with a billet filler neck and drain plug included—perfect for high-output engines in racing or street builds
USA Part Nos.: RH020539N
OEM Part Nos: N/A
Car Models: Silvia / 240SX S13 2.4 05/88-
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.
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