Engine Coolant Radiator Assembly Compatible with Subaru Ascent

In this review the Engine Coolant Radiator Assembly compatible with Subaru Ascent 2019-2023 is evaluated for drivers who need a direct replacement radiator for the H4 2.4L engine. The bottom line: this radiator delivers a near-OEM fit and solid cooling performance thanks to a high density multi-louvered fin core and quality construction, making it a practical choice for owners who want a reliable, affordable replacement without modifying existing mounts or lines.

Key Features

• Direct OEM fit: Designed for Subaru Ascent 2019-2023 H4 2.4L with reference numbers SU3010668, 13824, 45111XC00A, so installation aligns with factory mounting points and hoses.
• High density fins: Multi-louvered fins increase surface area for improved heat dissipation under normal and heavy engine loads.
• Durable core construction: An aluminum radiator core with TIG-welded ends resists corrosion and supports long service life in varied climates.
• Reinforced tanks and cooler: PA66 GF30 inlet/outlet tanks and a brass transmission oil cooler are used to improve strength and durability.
• Leak-tested build: Each unit is subjected to leak tests and uses high-grade plastic tanks plus an aluminum core to minimize chances of failure.
• Two-year guarantee: Backed by a two-year unlimited-mileage warranty and 24/7 customer support for peace of mind after purchase.

Who It's For

This radiator is best for Subaru Ascent owners who need a like-for-like replacement for the 2.4L H4 engine and value an affordable option that closely follows OEM fit and function. It suits DIY mechanics and repair shops that want straightforward installation with minimal adjustments.

It is less appropriate for vehicles outside the stated model years or for owners who require a performance-upgraded or aftermarket heavy-duty racing radiator; those buyers should look for purpose-built performance cooling solutions rather than a direct-fit replacement.

Pros & Cons

Pros

• Fit: typically aligns with factory mounts and hoses for easier installation.
• Build quality: aluminum core, TIG-welded ends and reinforced tanks contribute to long-term durability.
• Functionality: high density multi-louvered fins deliver effective cooling under normal driving conditions.
• Support: two-year unlimited-mileage guarantee and 24/7 service add buyer protection.

Cons

• Occasional shipping damage reported as bentness by at least one customer, so inspect on arrival.
• Not a performance upgrade; intended as a like-for-like replacement rather than a high-performance radiator.

Specifications

Compatibility	Subaru Ascent 2019-2023 H4 2.4L
Reference numbers	SU3010668, 13824, 45111XC00A
Core material	Aluminum radiator core
Tanks	PA66 GF30 inlet/outlet plastic tanks
Transmission cooler	Brass transmission oil cooler
Finish	Treated protective coating
Warranty	Two-year unlimited-mileage guarantee

Our Verdict

The Engine Coolant Radiator Assembly is a sensible, value-focused replacement for Subaru Ascent 2019-2023 owners who want a reliable, direct-fit radiator that balances affordability and durability. With an aluminum TIG-welded core, reinforced tanks and a brass transmission cooler, it provides good cooling performance and a solid warranty, though buyers should check for shipping damage on arrival.

Frequently Asked Questions

Will this radiator bolt into my Subaru Ascent?
Yes, it is made as a direct OEM fit for Subaru Ascent 2019-2023 H4 2.4L and uses the referenced factory mounting points and hose connections.

Is the radiator leak-tested?
Yes, each unit is subjected to leak tests and uses high-grade plastic tanks and an aluminum core to reduce the risk of leaks.

What warranty is included?
The product includes a two-year unlimited-mileage guarantee and access to 24/7 customer support for questions or assistance.