Mishimoto MMRAD-C5-97 Direct-Fit Aluminum Radiator
The Mishimoto MMRAD-C5-97 aluminum radiator fits the 1997–2004 C5 Corvette, including LS1-powered Base and Fixed Roof Coupe models and the 2001–2004 LS6 Z06. Built around a 2.2-inch-thick core and welded aluminum end tanks, it replaces the factory radiator while retaining the stock fan shroud and coolant-hose connections.
Replacing an aging factory radiator? This direct-fit upgrade pairs a thicker aluminum core with welded tanks while keeping your C5’s stock fan assembly and hose connections. It suits owners who want an aluminum replacement without a separate fan conversion. For automatic cars, match the existing cooler-line ends to the supplied fittings before installation.
Product Details
- Part number: Mishimoto MMRAD-C5-97; one radiator per package.
- Construction: Aluminum core and TIG-welded aluminum end tanks.
- Core dimensions: 24.8 inches long × 17.27 inches high × 2.2 inches thick.
- Overall dimensions: 29.78 inches long × 19.67 inches high × 4.79 inches wide.
- Hose connections: 1.34-inch inlet and outlet.
- Service feature: Magnetic drain plug with M12 × 1.5 threads.
- Included hardware: Four mounting grommets, two inverted-flare transmission-cooler adapters, two quick-disconnect adapters and two replacement Dowty seals.
Benefits
The thicker core adds radiator capacity within a direct-fit C5 package. Welded end tanks eliminate the plastic tanks on the original radiator, and the included grommets replace aged mounting cushions during installation. You retain the factory fan assembly rather than buying a separate fan conversion. For cars using the in-tank transmission cooler, the supplied fittings address the different factory line ends.
Important Notes
- Identify the existing transmission-cooler connection before installation: Dowty-seal lines thread directly into the cooler with fresh seals; inverted-flare and quick-disconnect lines use their matching supplied adapters.
- Reuse the stock fan shroud and serviceable coolant hoses. Fans, silicone hoses and coolant are not included. The red hoses in the installed photograph are separate upgrades.
- This package includes a transmission cooler, not a separate engine-oil cooler kit. Do not assume the cooler ports are intended for engine-oil plumbing.
- Allow approximately 3–4 hours for installation. Follow the exact-part installation guide and the vehicle service procedure for cooling-system refilling.
- Mishimoto’s lifetime limited warranty has purchase-eligibility and claim requirements. Keep your original sales receipt; installation and removal labor are excluded.
CORVETTE COMPATIBILITY
- 1997–2004 C5 Corvette Base with the 5.7L LS1.
- 1999–2000 C5 Corvette Fixed Roof Coupe with the 5.7L LS1.
- 2001–2004 C5 Corvette Z06 with the 5.7L LS6.
- Manual and automatic transmissions; connect the factory in-tank transmission-cooler lines where equipped.
Use Overview
Choose this radiator for a C5 cooling-system replacement or performance upgrade. Check the condition of the hoses, fan assembly and surrounding airflow path while the radiator is removed. A larger radiator is one part of the cooling system; it does not guarantee a particular temperature drop or repair every cause of overheating.
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