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Honda Civic EG or EK W/K-Swap Performance Aluminum Radiator


Mishimoto is proud to release a brand new radiator for EG / EKchassis Civics with K-Series engine swaps. Our half size radiator is designed specifically for your swapped vehicle with high performance driving in mind. This radiator is a direct drop in unit that does not require any trimming, drilling or mount alterations.


The Mishimoto radiator will simplify a cooling solution for your K-swap and includes ports for the fan switch and coolant temperature sensor.


All Mishimoto radiators include a high pressure 1.3 bar Mishimoto radiator cap and a lifetime warranty.

Model: MMRAD-K20-EG

Model: MMRAD-K20-EK

Overall Size

15.04” x 16.73” x 4.02”


Core Size

14.88" x 11.61"











Core Thickness



Tank Wall Thickness



Drain Plug Thread Size

M12 x 1.5


Upper Tank Thread Size

1/8” NPT


Lower Tank Thread Size

M18 x 1.5Purchase Includes

Mishimoto Radiator

Mishimoto Radiator Cap

Magnetic Drain Plug w/ Dowty Oil Seal

Limited Lifetime Warranty



1992-1995 Honda Civic EG

1993-1997 Honda Del Sol

 1996-2000 Honda Civic EK

Engine Codes




Customers who purchase this radiator will need special hoses to work with their swap. Mishimoto recommends the following part numbers for hose configuration:


Upper: NBH 9740 (NAPA), Gates 21229, or AC 22138M


Lower: XL588 (Autozone), or Acura 19502-P72-000. Note, this hose will need to be trimmed to fit the lower water outlet.

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