SKU: 29815764536

Koyo Aluminum Radiator - 06-11 Civic Si

Sale price$173.16 Regular price$192.40
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Koyo Aluminum Radiator - 06-11 Civic SiKoyorad has engineers their radiators with precision, to directly replace the OEM radiator, maintaining all mounts for the factory fans, fan switch, A C condenser, and factory hoses. Koyorads advanced engineering and design methods, impeccable welds, experienced furnace brazing, and triple pressure testing for quality has earned their excellent reputation in performance. Koyo's thick dual core crafted aluminum radiators are a direct OEM replacement

Koyorad has engineers their radiators with precision, to directly replace the OEM radiator, maintaining all mounts for the factory fans, fan switch, A/C condenser, and factory hoses. Koyorad’s advanced engineering and design methods, impeccable welds, experienced furnace brazing, and triple pressure testing for quality has earned their excellent reputation in performance.

Koyo's thick dual-core crafted aluminum radiators are a direct OEM replacement radiator's that offer maximum cooling efficiency and has integrated OEM rad-fan mounting provisions.

Koyo incorporates application specific mounting locations for all fan shrouds, inlet/outlet hoses and top/bottom mounting pins, ensuring quick and pain-free installs. Each Koyo all aluminum race radiator is Heliarc welded individually by hand. This creates the strongest aluminum to aluminum bond, to mate all components. Precision machined billet filler necks are incorporated on each Koyo radiator for strength, durability and better sealing. Construction under strict quality control and solid boxing result in tubes with optimal coolant flow and fins with highly efficient heat transfer.

Features

  • 36mm V Core series radiator
  • Precise tube and fin alignment
  • Nocolok-R brazing with brushed polish finish
  • High density fully brazed Hyper Core
  • Precision TIG welded
  • Dual row construction
  • Bolt-on fitment with OEM fans, hoses, and sensors
  • 1/8” NPT female accessory fitting
  • Billet drain plug included
  • Triple Pressure tested for high performance needs
  • Radiator cap not included

Vehicle application: 06-11 Civic Si Coupe & Sedan (M/T)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29815764536

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4.9 ★★★★★
Based on 1968 reviews
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Michael Kyle.
Whiting, US
★★★★★ 5
Made a great pillow better.
Had an awesome pillow but if I didn't fluff it before going to sleep my neck would hurt the next morning. Ordered this and put about 70% into a cardboard box to expand then shoved it into my pillow. Its been great 👍 put the rest in another pillow. Had no scent. My pillows are king sized.
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Reviewed in the United States on May 8, 2026
A
Verified Purchase
AgnesMarie Pezanetti
Lake Worth, US
★★★★★ 5
Great for refreshing old memory foam pillows
Our memory foam pillows are 2 years old and need a little refreshing. We purchased this and was able to refresh both pillows to firmer than new condition.
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Reviewed in the United States on April 15, 2026
A
Ashley
Port Orchard, US
★★★★★ 4
Easy to use
I recently got one of those large body pillows that people usually use for pregnancy. Unfortunately, it was a little understuffed for my liking, and it isn't stuffed/stitched in a way that keeps the filling from moving around. The filling was bunching in places and sparse in others, causing it to be uneven. Fortunately, the pillow had a cover, and the core had a zipper where I could easily access the stuffing. I decided to try this filling to make up for the gaps. It worked great. I grabbed the stuffing and put it directly into the pillow. I did not allow it to expand fully before stuffing. I probably should have. But this was super easy to use and absolutely solved my problem. It doesn't smell great. There is definitely some smell that could probably be cleared by leaving it to air out for a while. I stuffed it right into the pillow and didn't use it until later that night. It wasn't so strong that it could be smelled through the pillow covering and the pillowcase.
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Reviewed in the United States on September 17, 2025
J
Verified Purchase
Jose Garcia
Birmingham, US
★★★★★ 5
Great for topping off bean bag
Bought this to help top off/fill a bean bag chair we have and it was perfect!
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Reviewed in the United States on April 6, 2026
A
Verified Purchase
Allie Spizalizle
Bozeman, US
★★★★★ 1
Don't get that much
It's not very much and they really suck... but it is what it is..
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Reviewed in the United States on April 7, 2026

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