Parts Now Pay Later with
Log In Cart
Log In

Create An Account

Log In Cart
Your Cart Is Empty
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.
Shipping to Alaska and Hawaii is additional and not included.
We do not ship international at this time.

Shipping Policy

Koyo 99-00 Civic SI Half Size Radiator
Part Number: HH080300

Koyo 99-00 Civic SI Half Size Radiator-A1
Images may be for reference only

Koyo 99-00 Civic SI Half Size Radiator
Part Number: HH080300

Be the first to review!
Was: $362.40
Save: $78.16 (22%)

Reward Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn reward points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

They are easy to use during check out. Click on the "Have Reward Points?" on the shipping and payment selection page.

Reward Point Program Details

You earn 2 points for every $1.00 that you spend.

100 points equal a $1.00 discount.

Maximum discount per order is 5% of the order total.

There is no minimum order total to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 568 reward points. Learn More

1 In Stock

Product Details

Part Number: HH080300
Brand: Koyo Radiator
UPC: 847839001019
Transmission: Manual

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 a Koyo radiator cap with this radiator.


  • Core: 13-3/4 x 13-3/8 x 2-1/16
  • top/btm header: 2-3/8 x 14-1/2

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

Vehicle Fitment

Honda Civic
1999 Honda Civic Si Manual
2000 Honda Civic Si Manual
Honda Civic del Sol
1994 Honda Civic del Sol VTEC Manual
1995 Honda Civic del Sol VTEC Manual
1996 Honda Civic del Sol VTEC Manual
1997 Honda Civic del Sol VTEC Manual

Reviews ★★★★★ ★★★★★

No Reviews Yet!

Write a Review