Koyo OEM Replacement Radiator Manual Transmission - Subaru WRX/STI 2003-2007
Manufacturer Part # KOY-A2704
Bundle Savings:MSRP: $140.68
As low as $99.94
This is Koyo’s OEM replacement radiator for cars with the manual transmission. Koyo has an outstanding reputation for providing the automotive consumer with a radiator that is reliable, offers optimal cooling, and has factory fit and finish.
These are great for stock cars, to lightly modified. These feature plastic end tanks with an aluminum core. These are a very cost effective option in comparison to OEM units.
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
Good Price, great quality, exactly what I needed.
csuskiwrx 3 months ago
took me 5 mins to swap parts from old radiator to new. Everything fit perfectly!
Good product - One small flaw
GemstoneJames 7 months ago
A great OEM replacement radiator. Easy to install. However, lower drain valve arrived cracked and I had to transfer the old unit to the new radiator. Inspect it before installing!
OEM quality and fitment
Tearly 7 months ago
Upper plastic end tank started leaking on my 06 STI. Bought this based on reviews, my car is basically stock so no need for an upgraded radiator. Install was completely straight forward and zero unexpected hassles. Pull the old radiator out, attach the fans and overflow reservoir on to the new replacement and reinstall, refill coolant and done. Took two hours start to finish and I was driving the car again. This radiator is an exact replacement. RSD always does a great job with shipping.
Deadkid9110 1 year ago
The previous owner of my car loaded the stock radiator full of Black Pepper, so I decided to replace it with this radiator. Installation was straight forward, fans screwed into place (although I did have to force the holes to line up - minor inconvenience) and radiator bolted directly in place. After properly burping the cooling system, my car runs noticeably cooler. Before, my coolant temperature gauge would be right in the middle of the operating temperature lines. Now it hugs the lower line a little more. Interested to see how it will do on extremely hot days with AC running, but I don't for-see a problem. I gave performance 5 stars because the people who buy this radiator know what they are purchasing (an OEM Replacement). IF you need that "extra" performance, buy accordingly. Highly recommended, and price is spot on!