Koyorad Performance Radiator for Honda Civic EG / EK 1991-2000 Non A/C
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Description
Koyo Performance Radiator – Honda Civic EG / EK (1991–2000)
Application: Honda Civic EG / EK | Multiple Chassis | Manual Transmission | Non A/C
Part Number: KV081225U06/ VH81226
The EG and EK Civic are two of the most iconic Honda platforms ever built — lightweight, nimble, and endlessly tuneable. Whether you're running a stock D-Series daily or a full B16/B16B track build, the factory radiator can become a limiting factor under sustained high-load conditions. The Koyorad KV081225U06 is a direct bolt-in performance upgrade engineered specifically for the EG and EK Civic, delivering improved cooling capacity without any cutting, drilling, or fabrication.
Koyorad's all-aluminium construction and high-efficiency 36mm core design dissipate heat faster and more effectively than the factory unit, keeping coolant temperatures in check even under sustained high-load driving. Nocolok furnace brazed, precision TIG welded by hand, and triple pressure tested — it retains all OEM fan shroud mounts and stock hose connections with no modifications required.
⚠️ Fitment Note: This radiator requires removal of the factory air conditioning system for fitment. It will not fit vehicles equipped with A/C.
Why Koyorad?
- Precise Tube & Fin Alignment — Strict quality control ensures optimal coolant flow and maximum heat transfer efficiency across the entire core.
- Nocolok Furnace Brazing — All tubes, fins, headers, and brackets are bonded in a state-of-the-art Nocolok furnace, creating a structure that resists vibration, road debris, and the elements.
- Billet Filler Neck — Precision-machined billet filler necks are fitted to every unit for superior strength, durability, and a reliable seal.
- OE-Specific Mounting — Application-specific mounting points for fan shrouds, inlet/outlet hoses, and top/bottom pins ensure a pain-free, no-modification install.
- Hand-Crafted Heliarc Welds — Each radiator is individually Heliarc welded by hand, creating the strongest possible aluminium-to-aluminium bond across all components.
Specifications
| Part Number | KV081225U06 |
| Core Thickness | 36mm |
| Core Dimensions (H × W) | 350 × 669/693mm |
| Tank Dimensions | 43/43 × 701mm |
| Inlet / Outlet Diameter | ⌢32mm (top and bottom) |
| Drain Plug | M18 (42014) |
| Construction | All Aluminium, Nocolok Brazed, Heliarc Welded |
| Transmission | Manual (MT) |
| A/C Compatibility | Non A/C only — requires A/C removal for fitment |
| Fitment | Direct bolt-in, no modifications required |
Cross Reference
| Koyorad | KV081225U06 |
| Koyorad (alt) | VH0812N1 |
Fitment Table
| Year | Make | Model | Chassis | Submodel |
|---|---|---|---|---|
| 1991–1995 | Honda | Civic | EG4 (2D Hatch) | GL – D15B4 1.5L Aspirated Petrol FWD (72kW) |
| 1991–1993 | Honda | Civic | EG5 (2D Hatch) | Si – D16A8 1.6L Aspirated Petrol FWD (96kW) |
| 1993–1995 | Honda | Civic | EG5 (2D Hatch) | Si – D16Y1 1.6L Aspirated Petrol FWD (96kW) |
| 1992–1995 | Honda | Civic | EG6 (2D Hatch) | SiR – B16A 1.6L Aspirated Petrol FWD (118kW) |
| 1993–1995 | Honda | Civic | EG8 (4D Sedan) | Base – D15B7 1.5L Aspirated Petrol FWD (74kW) |
| 1991–1993 | Honda | Civic | EG8 (4D Sedan) | GL – D15B4 1.5L Aspirated Petrol FWD (72kW) |
| 1993–1995 | Honda | Civic | EG8 (4D Sedan) | VEi – D15Z1 1.5L Aspirated Petrol FWD (66kW) |
| 1991–1993 | Honda | Civic | EH9 (4D Sedan) | Si – D16A8 1.6L Aspirated Petrol FWD (96kW) |
| 1993–1995 | Honda | Civic | EH9 (4D Sedan) | Si – D16Y1 1.6L Aspirated Petrol FWD (66kW) |
| 1999–2000 | Honda | Civic | EJ6 (2D Coupe) | GLi – D16Y7 1.6L Aspirated Petrol FWD (77kW) |
| 1996–1999 | Honda | Civic | EJ8 (2D Coupe) | VTi – D16Y8 1.6L Aspirated Petrol FWD (93kW) |
| 1995–2000 | Honda | Civic | EK1 (2D Hatch) | LXi – D16Y4 1.6L Aspirated Petrol FWD (88kW) |
| 1995–2000 | Honda | Civic | EK1 (2D Hatch) | VTi-S – D16Y6 1.6L Aspirated Petrol FWD (93kW) |
| 1995–2000 | Honda | Civic | EK1 (4D Sedan) | LXi – D16Y4 1.6L Aspirated Petrol FWD (88kW) |
| 1995–2000 | Honda | Civic | EK1 (4D Sedan) | VTi – D16Y5 1.6L Aspirated Petrol FWD (93kW) |
| 1995–2000 | Honda | Civic | EK1 (4D Sedan) | VTi-S – D16Y6 1.6L Aspirated Petrol FWD (93kW) |
| 1995–1999 | Honda | Civic | EK4 (2D Hatch) | VTi-R – B16A2 1.6L Aspirated Petrol FWD (118kW) |
| 1997–2000 | Honda | Civic | EK9 (2D Hatch) | Type R – B16B 1.6L Aspirated Petrol FWD (137kW) |
| 1999–2000 | Honda | Civic | EM1 (2D Coupe) | VTi-R – B16A2 1.6L Aspirated Petrol FWD (118kW) |
Sold individually. Manual transmission fitment only. Not compatible with vehicles equipped with factory air conditioning — A/C removal required. Lead times may apply — contact us at iilumolab for availability and shipping estimates.
iilumolab is an Authorised Australian Distributor of Koyorad Performance Radiators.
Shop with confidence — all Koyorad products sold through iilumolab are genuine, backed by manufacturer support, and shipped from Australia.
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.