Mishimoto · New
Mishimoto 03-09 Toyota 4-Runner / GX470 4.7L Performance Aluminum Radiator
MPN MMRAD-4RUN-03 · Store SKU misMMRAD-4RUN-03
Supplier stock checked 11/7/2026, 10:42:21 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The 2003-2009 Toyota 4Runner V8 is known for its ruggedness, reliability, and off-road capability, but as they grow older the stock parts are starting to show their age. Over time, the factory radiator can develop issues such as leaks, corrosion, or clogging. Upgrading to a new Mishimoto performance aluminum radiator can prevent these problems before they occur, saving you from potential breakdowns on the trail. For those who use their 2003-2009 Toyota 4Runner for off-roading, this radiator can handle the additional strain and heat generated during these activities, providing better reliability and performance in rugged conditions. Our direct-fit radiator features a 40mm thick core for increased cooling capacity. Constructed entirely from aluminum with durable, TIG-welded end tanks, it includes an efficient in-tank liquid-to-liquid stacked plate transmission cooler for optimal transmission fluid temperature control. The radiator also comes with a magnetic drain plug to capture metallic debris in your cooling system and is backed by the Mishimoto Lifetime Warranty for peace of mind. Aluminum radiator engineered for efficient heat dissipation and optimal engine cooling. Precision-fit design ensures easy installation, corrosion resistance, and reliable performance across varied driving conditions. Performance Aluminum Radiator, fits Toyota 4Runner V8 2003-2009
Manufacturer fitment & guides
Check MMRAD-4RUN-03 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y