SKU: RH313986 | UPC: 847839021444
Koyo 2005-2013 Chevrolet Corvette C6 Racing Radiator
The Koyo RH313986 Racing Radiator serves as a direct-fit all-aluminum upgrade for 2005-2013 Chevrolet Corvette C6 models including Base Z51 Z06 Grand Sport and ZR1. This high-capacity 2-row 50mm core rejects more heat than the factory unit to sustain engine performance on track or street. Built for racing conditions it keeps temperatures in check during extreme use with 30 percent greater cooling efficiency.
Key Features
- All-Aluminum Build: Full aluminum construction at 20.5 lbs resists corrosion and outlasts plastic OEM tanks for reliable long-term use
- 2-Row 50mm Core: 21.125in x 15.375in x 2.25in core size increases surface area for 30 percent more cooling efficiency than stock radiator
- Direct Bolt-On Design: Matches OEM overall dimensions of 28.5in x 17.375in x 2.875in with 1.5in inlet and outlet for plug-and-play fit
- Precision TIG Welds: Hand-welded aluminum end tanks hold pressure up to 20 PSI without leaks
- Flattened Oval Tubes: 1.25in x 0.059in tubes with 0.006in fins enhance airflow and heat transfer in racing setups
Product Notes
- Requires no modifications to factory shrouds hoses or mounts
- Clean radiator fins before installation to maintain airflow
- Ships fully assembled ready for immediate use
Installation Notes
- Professional installation recommended.
- Drain coolant and remove OEM radiator using basic hand tools
- Compatible with factory mounting brackets and transmission cooler lines
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2013 | Chevrolet | Corvette | Base |
| 2006-2013 | Chevrolet | Corvette | Z06 |
| 2009-2013 | Chevrolet | Corvette | Grand Sport |
| 2009-2013 | Chevrolet | Corvette | ZR1 |
| 2005-2013 | Chevrolet | Corvette | Z51 |
Why Choose Koyo?
- Motorsport-proven design used in professional racing series
- Over 50 years of radiator manufacturing expertise
- USA-assembled with Japanese engineering standards
Frequently Asked Questions
- Q: Will this fit my 2010 Corvette ZR1 with supercharger?
A: Yes RH313986 is a direct replacement for all 2005-2013 C6 Corvettes including ZR1 Z06 and supercharged models with no clearance issues - Q: Is the radiator made from aluminum or other materials?
A: 100 percent aluminum core tubes and end tanks for lightweight strength and corrosion resistance - Q: What warranty coverage is provided?
A: Lifetime warranty against defects to original purchaser when installed properly
Shipping & Handling
- Method: UPS Ground or LTL for oversized items
- Availability: In stock – ships same or next business day
- Packaging: Securely boxed 32in x 20in x 6in dimensions
- Weight: 20.5 lbs product 28 lbs shipping








