Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6
Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 is a direct-replacement aluminum cooling core priced at $88.34, designed to restore optimal engine temperature on mid-generation Sienna minivans. Its high-quality construction and leak-tested sealing make it ideal for DIY owners replacing a faulty radiator.
● In stock
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Key features
- Aluminum core – lightweight, high heat transfer.
- 100 % leak test – ensures no coolant loss.
- Direct fit – bolt-for-bolt installation.
- OEM part-number match – multiple Toyota references.
- Improved sealing – upgraded gasket material.
- Enhanced packaging – protects radiator during shipping.
Pros
- +Factory-compatible fit for 2004-2005 Sienna V6.
- +Aluminum construction provides efficient cooling.
- +Leak-tested for reliable performance.
- +Affordable price at $88.34.
Cons
- −May require coolant system flush after installation.
- −Limited to 2004-2005 model years only.
About Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6
What is Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6?
This component is a factory-compatible aluminum radiator engineered to replace the original cooling core on 2004-2005 Toyota Sienna minivans equipped with the 3.3-liter V6 engine. It matches the OEM part numbers (including 160410A390 and 2681 series) and is built to meet the same pressure-rated specifications as the stock unit. The radiator works in conjunction with the thermostat and water pump to regulate coolant flow, ensuring the engine operates within its optimal temperature band. Its aluminum fins are precision-extruded to maximize surface area, while the brass tanks provide robust structural integrity under high pressure. Designed for the 2004-2005 model year, the unit meets the same ASME standards as the factory part, giving peace of mind that the replacement will not compromise emissions compliance.
Key features
- Aluminum core — lightweight metal provides superior heat transfer and corrosion resistance.
- Leak-tested — each unit undergoes a 100 % pressure test to ensure no coolant loss.
- Direct fit — bolt-for-bolt installation eliminates the need for modifications.
- OEM part-number match — compatible with multiple Toyota part references for easy cross-checking.
- Improved sealing — upgraded gasket material reduces the risk of future leaks.
- Enhanced packaging — reinforced cardboard and foam protect the radiator during shipping.
Who is Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 for?
The radiator targets owners of mid-generation Sienna minivans who are experiencing overheating, coolant loss, or visible corrosion on the original radiator. It also serves independent mechanics and hobbyist technicians who prefer a reliable, cost-effective replacement without sourcing a used part. Typical symptoms include a rising temperature gauge, steam from the radiator cap, or a sweet smell of leaking coolant.
How does Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 compare?
Compared with generic aftermarket cores, this radiator offers a tighter tolerance to the original design, resulting in more consistent cooling performance and longer service life. While premium OEM-direct parts may cost more, the $88.34 price point delivers comparable durability at a fraction of the cost, making it a strong value proposition for budget-conscious shoppers.
Best use cases
- →Replacing a cracked radiator after an accident.
- →Upgrading cooling efficiency on a high-mileage Sienna.
- →Fixing persistent overheating during summer trips.
- →Restoring coolant flow after a thermostat failure.
Is Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 right for you?
Buy this radiator if you own a 2004-2005 Toyota Sienna with the 3.3 L V6 and have identified a failing or corroded cooling core. It’s suited for DIY enthusiasts comfortable with basic engine work such as draining coolant, removing the old unit, and installing the new one with standard hand tools. If you prefer a brand-new OEM part, consider a dealer-sourced radiator, though it will cost more. For those on a tighter budget, this aftermarket core offers comparable performance at a lower price.
How it compares: Compared with generic aluminum radiators, this unit matches the original OEM dimensions and pressure rating, delivering superior heat dissipation. While premium OEM replacements guarantee exact factory specs, they are significantly pricier. Budget-friendly aftermarket cores may lack the rigorous leak testing this product provides, making it a balanced choice between cost and reliability.
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What symptoms indicate the radiator needs replacement on a 2004-2005 Sienna?
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Typical signs include a rising temperature gauge, persistent engine overheating, visible coolant leaks around the radiator core, steam emerging from the radiator cap, and a sweet smell of escaping coolant. In some cases the radiator may develop rust spots or bulging tanks, which reduce its ability to dissipate heat efficiently and warrant a replacement.
Does this radiator come with gaskets and coolant?
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The package includes the aluminum radiator and a set of pre-cut aluminum-to-copper gaskets designed for the Sienna’s mounting points. Coolant is not supplied, so you’ll need to refill the system with a compatible Toyota-specified coolant after the installation is complete.
How do I install the radiator on my Sienna?
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Begin by draining the cooling system and disconnecting the battery. Remove the upper and lower radiator hoses, the transmission cooler lines, and the mounting bolts. Lift the old radiator out, compare the new unit for fit, install the new radiator, reattach hoses, refill coolant, and bleed the system to remove air pockets.
Is the aluminum core prone to corrosion?
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Aluminum is naturally resistant to rust, but it can suffer from galvanic corrosion if it contacts dissimilar metals without proper isolation. The radiator’s design incorporates protective coatings and insulated tank connections to minimize this risk, making it a durable choice for the Sienna’s cooling system when installed correctly.
Can I use this radiator on other Toyota models?
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The radiator is engineered specifically for the 2004-2005 Sienna with the 3.3 L V6, matching its mounting points and coolant flow path. While some later-generation Sienna models share similar dimensions, variations in tank shape and hose routing mean it is not guaranteed to fit other Toyota vehicles without modification.
How much does Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 cost?
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Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 is $88.34 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 in stock at Lab Work Auto?
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Yes, Radiator Fit For 2004 2005 Toyota Sienna 3.3L V6 is currently in stock at Lab Work Auto.
Specifications
- SKU
- F7-9455