Koyorad: Alloy Radiator: Sylvia/180/200/240SX Man. 10/93-11/94
Upgrade your Nissan Silvia (S14 1993–1998 / S15 1998–2002) with SR20DET manual transmission using the Koyorad HH-Series Dual-Pass Alloy Radiator (Part No. KH020369NU06). This premium all‑aluminium radiator features a thick 48 mm Hyper-HH core with ultra‑high fin density, engineered for maximum heat transfer—delivering approximately 35% better cooling than OEM plastic units. It includes Koyorad’s N‑Flo dual‑pass coolant routing, extending coolant dwell time for superior thermal efficiency. Crafted in Japan with precision TIG-welding, Nocolok brazing, and a billet filler neck plus 1/8″ NPT accessory port, this radiator guarantees durability, reliability, and a polished finish. Designed for direct bolt-in fitment, it uses factory mounts, hoses, fans, and cap—no modifications required. Ideal for daily driving, engine swaps, drifting, or track use, this radiator provides next-level cooling performance when it counts most.
USA Part Nos.: HH020369N
OEM Part Nos: 2140069F00, 2141069F00
Car Models: Silvia / 200SX S14/S15 2.0 10/93-
Engine code(s): SR20DET
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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