DWVO Radiator Compatible with GMC Chevy Blazer S10 4.3L - Direct Fit

In this review of the DWVO complete radiator the bottom line is simple: this is a direct OEM fit replacement aimed at DIY mechanics and repair shops needing a cost-effective swap for 4.3L V6 models. The reviewer found it useful for owners of 1996-2005 Chevy Blazer, 1996-2004 S10 and GMC Sonoma, and related platforms because it matches the OEM part number 15120548 and common replacement numbers, making it an obvious choice when a like-for-like radiator is required. Expect straightforward installation and solid cooling when the unit and installation are done correctly.

Key Features

• Direct OEM fit: Designed to replace the factory radiator on the listed 4.3L V6 models, so bolt-on fitment reduces modification time and fitment guesswork.
• Robust core construction: The high density multi-louvered fins are intended to increase cooling efficiency and help maintain operating temperatures under load.
• Durable materials: Aluminum core with TIG-welded joints and PA66 GF30 inlet/outlet tanks improve long-term resistance to stress and temperature cycling.
• Transmission oil cooler: Built-in brass cooler provides integrated transmission cooling for automatic transmission models without needing separate add-ons.
• Complete package: Ships with the radiator and a user manual, plus fixed foam protection in the corners to prevent bending or damage in transit.

Who It's For

This radiator is best for vehicle owners and mechanics who need an affordable, OEM-compatible replacement for 4.3L V6 Chevrolet and GMC models from the late 1990s to early 2000s, including Blazer, S10, Jimmy, Sonoma, Bravada and Hombre. It is also suitable for shops replacing a failed core where retaining original mounting and hoses matters.

Those who should look elsewhere include owners wanting a radiator with a factory-supplied radiator cap or models outside the listed compatibility. Also consider a different premium brand if you require extended warranty coverage or custom-fit performance upgrades beyond OE specification.

Pros & Cons

Pros

• Direct OEM fit and listed replacement numbers simplify part selection and reduce installation guesswork.
• High density fins and aluminum core provide improved cooling potential over older, corroded OEM cores.
• Includes a brass transmission oil cooler and protective packaging to reduce shipping damage.

Cons

• Some customers reported mixed quality and rare leakage or overheating issues, so careful inspection during install is recommended.
• Radiator cap is not included, so buyers may need to reuse the original or purchase a cap separately.

Specifications

Core Size	26.2 in x 14.9 in
Compatible Engines	4.3L V6 (selected Chevy/GMC/Oldsmobile/Isuzu models)
OEM Part Number	15120548
Replacement Numbers	89018542, 52493406, 52406435, 52455644, 52472964, 52472963
Core Material	Aluminum with multi-louvered fins
Tanks	PA66 GF30 inlet/outlet tanks, TIG-welded
Package Contents	1x Complete Radiator, 1x User Manual (no radiator cap)

Our Verdict

The DWVO radiator is a practical, value-focused replacement for owners of compatible 4.3L V6 GM trucks and SUVs who want an OEM-style swap without paying dealer prices. It pairs an aluminum core, TIG-welded construction and an integrated transmission cooler into a package that offers good cooling potential and ease of installation, though buyers should inspect for leaks and plan to supply a radiator cap if needed.

Frequently Asked Questions

Will this radiator fit my 1998 Chevy S10 4.3L?
Yes, it is listed as compatible with 1996-2004 Chevy S10 4.3L and is designed as a direct OEM fit for those model years.

Does the package include a radiator cap?
No, the package includes the complete radiator and user manual but does not include a radiator cap.

Is this radiator suitable for automatic transmissions?
Yes, the unit includes a brass transmission oil cooler and fits both automatic and manual applications where specified.