Mishimoto Limited Lifetime Warranty Radiator Mmrad-4RUN-03 - Performance Aluminum
Mishimoto Limited Lifetime Warranty Radiator Mmrad-4RUN-03 - Performance Aluminum
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Mishimoto MMRAD-4RUN-03 Limited Lifetime Warranty
The 2003 To 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 to 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 40 Millimeter 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.
Features & Benefits
- 40 millimeter thick core provides increased cooling capacity
- Full aluminum construction with durable, tig welded end tanks
- With magnetic drain plug to capture any metallic debris/ fragments in your cooling system
- Efficient in tank liquid to liquid stacked plate transmission cooler provides optimal control of transmission fluid temperatures
- With adhesive backed epdm foam ensuring an efficient airflow seal between the radiator and radiator support
- Limited Lifetime Warranty
Specifications
| Model | Limited Lifetime Warranty |
| Weight | 24 lb |
| Dimensions | 34.25 x 27.25 x 5.5 in |
| Brand | Mishimoto |
| Manufacturer Part Number | MMRAD-4RUN-03 |
| UPC | 00840197721919 |
Recommended Items
Commonly ordered accessories for this product:
| Item | Brand | Manufacturer Part Number | Description |
|---|---|---|---|
| Clear View Easy-Fill Funnel 1 Gallo | Perform Tool | W4051 | Clear view easy-fill funnel 1 gallo |
Frequently Asked Questions
What are the key construction details?
Mishimoto Limited Lifetime Warranty features full aluminum construction with durable, tig welded end tanks. See Features & Benefits and Specifications for the full list.
How much does this product weigh?
This item weighs approximately 24 lb.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

