Aluminum Radiator for Honda Odyssey (2011-2017) 3.5L

High-Efficiency All-Aluminum 3-Row Radiator for 2011-2017 Honda Odyssey (RL5)

What it Does: The All-Aluminum 3-Row Radiator replaces the failure-prone factory cooling unit on the 2011-2017 Honda Odyssey to significantly reduce coolant operating temperatures and eliminate catastrophic end-tank blowouts under heavy payload or towing conditions.

The Stock Honda Odyssey Radiator Weakness

The OEM cooling unit installed in the fourth-generation RL5 Odyssey relies on plastic end tanks crimped onto a thin aluminum core via rubber perimeter gaskets. Constant thermal expansion cycles, high summer ambient temperatures, and internal cooling system pressures degrade the structural integrity of the composite nylon tanks. Over time, stress fracturing occurs around the upper inlet neck and crimp seams, leading to sudden coolant loss, severe thermal spikes, and potential head gasket failure on the J35Z8 engine.

The Engineering Solution

This upgraded performance radiator eliminates failure-prone plastic through full aluminum construction. Utilizing a high-density, multi-louvered 3-row aluminum tube-and-fin core, it substantially increases thermal capacity and fluid surface contact over the thin factory unit. The heavy-gauge aluminum end tanks are 100% precision TIG-welded to the core, resisting high operational pressure and prolonged heat soak. Engineered as a direct drop-in replacement, it interfaces with factory brackets, cooling fans, and OEM transmission line fittings while completely replacing legacy part numbers like CU13208 and 13208.

What's Included

• 1 x 3-Row All-Aluminum Performance Radiator Assembly
• Protective Port Caps (Shipping Preservation)

Technical Specifications

Compatibility

• 2011-2017 Honda Odyssey LX 3.5L V6
• 2011-2017 Honda Odyssey EX 3.5L V6
• 2011-2017 Honda Odyssey EX-L 3.5L V6
• 2011-2017 Honda Odyssey Touring 3.5L V6
• 2011-2017 Honda Odyssey Touring Elite 3.5L V6

Frequently Asked Questions & Fitment Warnings

Does this fit the RL5 Odyssey?

Yes, this is a direct fit for the 2011-2017 Honda Odyssey equipped with the J35Z8 engine; it does not fit older generation chassis or non-3.5L platforms.

Do I need to bleed the cooling system after installing this radiator?

Yes, completely flush the system, inspect all rubber hoses, and use an air evacuation kit or spill-free funnel to purge all trapped air from the J-series cooling passages.

The Honda Caliber

Built to handle heavy cargo loads, cross-country family road trips, and sustained high-load towing without elevated coolant temps or mechanical failure.