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Koyo 02-05 Civic Si Racing Radiator
Part Number: V2574

★★★★★ ★★★★★ 5 Reviews
Koyo 02-05 Civic Si Racing Radiator-A1
Koyo 02-05 Civic Si Racing Radiator-A2
Images may be for reference only

Koyo 02-05 Civic Si Racing Radiator
Part Number: V2574

★★★★★ ★★★★★ 5 Reviews
Was: $435.60
$341.65 & Free Shipping
Save: $93.95 (22%)

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2 In Stock

Product Details

Part Number: V2574
UPC: 847839000586
Brand: Koyo Radiator

Koyo Radiators are designed, manufactured and specified to original equipment (OE) specifications. Koyo radiators are renowned for their OE style design made especially for import cars. Koyos radiators are also available in plastic tank and aluminum core. Our NocolokR brazing line keeps the highest quality standards, bringing you superior products you can rely on. Koyo is Japans largest aftermarket radiator manufacturer. The Koyo radiator is produced from aircraft quality aluminum and Heli-arc welded. Heli-arc soldering is the highest quality standard for enforcement along aluminum connections.

You need to use or purchase a Koyo radiator cap with this radiator.


  • Koyo Radiators are fully polished to a mirror finish
  • Koyo Radiators provide 20% to 30% more cooling than standard radiators
  • Handles high revving, high performance motors
  • Koyo Radiators are perfect for Turbo Charged, Super Charged & Nitros Oxide equipped engines
  • Made from aircraft quality aluminum and Heli-arc welded, cores are NOCOLOK-brazed
  • Koyo Radiator is on the cutting edge of technology and design with Japan's largest automobile manufacture
  • Custom built OEM fit - All Koyo radiator cores and tanks are specifically designed and built for each application. No universal fit parts are used.
  • This ensures proper fit, just like your original equipment! Koyo builds radiators to fit today's most popular import performance cars.

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects.

Vehicle Fitment

Honda Civic
2002 Honda Civic Si Hatchback 2003 Honda Civic Si Hatchback 2004 Honda Civic Si Hatchback 2005 Honda Civic Si Hatchback

5 Reviews ★★★★★ ★★★★★

★★★★★ ★★★★★
5/5.00 Stars out of 5 Reviews
Write a Review
5 Most Recent Read All 5 Reviews
Ep3guy | September 11th, 2022
As described, UPS ruined some of the fins but over all still functional. I hate UPS don't use them.
Great Radiator
Adrian LaFave | April 20th, 2019
These are made in Indonesia now but the quality is still very good. Does not include a cap so you need to buy that seperately. Overall, its still a great product
Good Rad
lc | August 24th, 2015
Quality, lower temp, no plastic. Almost 2x thick from stock.
Nice fit
Blake Beard | September 4th, 2014
The koyo radiator fit great! Great quality and great finish too. I had a mishimoto on my rx8, and I will choose koyo every time from now on. The koyo fit like OEM. Make sure to get an aftermarket radiator cap because the OEM cap won't fit.
Great Quality
Chris AKA BoogieMain | November 7th, 2011
Great looking and functioning product. I was really shocked by the quality of this product, which made for a very easy install. I would recommend this to anyone looking to upgrade their cooling system.
Read All 5 Reviews