Cubauto 3-Row Aluminum Radiator with Dual Fans for 1996–2005 Chevy S10, Blazer & GMC Sonoma

Complete Radiator and Dual Electric Fan Package

One of the biggest advantages of this Cubauto radiator kit is that it includes more than the radiator itself.

Purchasing a radiator, electric fans, fan shroud, and thermostat controller separately can create additional fitment and installation challenges.

This package provides the primary cooling components together.

1. Three-Row Performance Aluminum Radiator

The radiator features an aluminum core measuring 26.3 × 14.88 × 1.73 inches.

Its three-row configuration is designed to increase cooling capacity while providing an all-aluminum alternative to aging factory radiators.

The radiator is advertised as vacuum-brazed and TIG-welded, with leak testing performed during manufacturing.

2. Dual 12-Inch Electric Cooling Fans

Two electric fans provide additional airflow through the radiator during low-speed operation, idling, and traffic conditions.

Each fan features a 10-blade plastic design with a listed maximum rotational speed of 2,250 RPM.

The supplied fan specifications list airflow at approximately 2,300 CFM, although the manufacturer information does not clearly establish whether that figure applies to each fan or the complete assembly.

3. Aluminum Radiator Fan Shroud

The included shroud helps direct airflow through the radiator core instead of allowing air to bypass the fans. Learn how to flush your coolant system using our DIY guide.

Proper shroud positioning can improve low-speed cooling performance and helps keep the fan assemblies securely mounted.

4. Thermostat-Controlled Fan Relay Kit

The included temperature controller is designed to switch the electric fans on and off automatically.

Its specified operating temperatures are:

• Fan activation: 180°F
• Fan deactivation: 165°F
• Temperature probe: 3/8-inch NPT brass sensor
• Included adapter: 1/2-inch NPT

This configuration allows automatic fan operation based on the controller’s temperature sensing location.

The relay, fuse, wiring, and fan-control arrangement must be correctly sized for the combined electrical load of both fans.

Cubauto 3-Row Aluminum Radiator Technical Specifications

Important: The supplied specifications contain conflicting transmission-cooler thread descriptions, including 1/2-20 straight thread and 3/8-18 NPT. Confirm the actual fitting type before ordering adapters or connecting transmission lines.

Vehicle Fitment – Chevrolet, GMC, Oldsmobile and Isuzu Applications

This radiator package is advertised for selected GM S-Series trucks and SUVs, including:

Engine Applications: Advertised for compatible 4.3L V6 configurations and selected custom V8 conversions.

Not compatible with GMC Envoy models according to the product listing.

Before ordering, verify the radiator’s dimensions, mounting locations, hose connections, transmission cooler fittings, and fan clearance.

Some advertised model years may not correspond to factory production years in every market. Fitment must be confirmed against the actual vehicle rather than relying solely on the listing’s year range.

A Cooling Upgrade for Chevy S10 V8 and LS Engine Swaps

The Chevrolet S10 is one of the most popular compact pickup platforms for V8 conversions.

Its lightweight chassis and relatively compact engine bay make it an appealing candidate for small-block Chevrolet and LS-based engine builds.

However, installing a more powerful engine also introduces cooling system challenges.

Why V8-Swapped S10 Trucks Need Proper Cooling

A V8 engine conversion can change the cooling system’s requirements significantly.

Additional horsepower, increased engine load, altered accessory placement, and limited engine bay space can all affect radiator performance.

A three-row aluminum radiator may help provide additional cooling capacity, but radiator sizing must match the engine’s actual heat output. If you have a coolant leak and cannot find it, using this guide to find a coolant leak could help.

The Cubauto radiator and dual electric fan package offers several features useful for custom S10 builds:

• Aluminum radiator construction.
• Three-row core design.
• Dual electric cooling fans.
• Thermostat-controlled fan operation.
• Compact fan shroud arrangement.
• Transmission cooler provisions.

For LS-swapped or small-block Chevrolet applications, custom radiator hoses, brackets, wiring, and fan-control modifications may be necessary.

A direct-fit claim for a stock S10 should not be interpreted as guaranteed bolt-in compatibility with a V8-swapped truck.

For additional information on cooling system design and component selection, visit our Complete Car Cooling System Guide.

How to Install a 3-Row Aluminum Radiator and Dual Fans on a Chevy S10

Installing a performance radiator and electric fan assembly can be a manageable DIY project for experienced mechanics.

However, the installation becomes more involved when adding an aftermarket thermostat controller, relay wiring, or custom engine swap components.

Step 1: Drain the Existing Cooling System

Allow the engine to cool completely before opening the radiator cap.

Position a suitable drain pan beneath the vehicle and drain the coolant according to the factory service procedure.

Inspect the existing coolant for contamination, rust, or other signs of cooling system deterioration.

If the system contains significant deposits, consider flushing it before installing the replacement radiator.

Step 2: Remove the Factory Radiator and Fan Assembly

Disconnect the upper and lower radiator hoses.

Remove the factory fan shroud and cooling fan assembly as required.

Disconnect transmission cooler lines on automatic transmission applications, using appropriate precautions to contain escaping fluid.

Remove the radiator mounting hardware and carefully lift the original radiator from the vehicle.

Step 3: Install the Cubauto Aluminum Radiator

Position the new radiator into the factory mounting area.

Confirm that the pin mounts align correctly and that the radiator does not interfere with surrounding components.

Check the upper inlet and lower outlet locations against the vehicle’s existing radiator hose routing.

Secure the radiator using the appropriate mounting hardware.

Step 4: Install the Dual Electric Fans and Shroud

Mount the included aluminum shroud and two 12-inch electric fans.

Verify that the fans have sufficient clearance from engine accessories, pulleys, belts, and other moving components.

Avoid routing wiring near exhaust manifolds or other high-temperature surfaces.

If using through-core mounting hardware, follow the manufacturer’s instructions carefully to avoid damaging radiator tubes or fins.

Step 5: Wire the Thermostat and Relay Kit

Install the temperature probe in a suitable threaded coolant passage using the supplied adapter when appropriate.

Connect the relay and electric fans according to the controller manufacturer’s wiring instructions.

Use appropriately rated fuses, wiring, connectors, and relays.

Because two electric fans can create a substantial startup current, verify that the relay arrangement can safely handle the combined electrical load.

Step 6: Refill and Bleed the Cooling System

Refill the system with coolant approved for the engine and cooling system materials.

Follow the applicable factory or engine-swap bleeding procedure to remove trapped air.

Improper bleeding can cause overheating even when the radiator and cooling fans are functioning correctly.

Step 7: Test Cooling Fan Operation

Start the engine and monitor coolant temperature.

Verify that the fans activate at the controller’s intended switching temperature and shut off when appropriate.

Confirm that both fans move air in the correct direction through the radiator.

Inspect all hose connections, radiator fittings, and transmission cooler connections for leaks.

After the first complete heat cycle, allow the engine to cool and recheck coolant level and mounting hardware.

Automatic Transmission Cooling – Why the Integrated Cooler Matters

Many Chevrolet S10, Blazer, and GMC Sonoma applications use automatic transmissions that rely on a radiator-integrated transmission fluid cooler.

This helps manage transmission fluid temperature during normal operation.

The Cubauto radiator includes transmission cooler provisions, making it suitable for consideration in compatible automatic transmission applications.

However, transmission cooler fitting types and operating requirements must match the vehicle.

For modified trucks, towing applications, and performance builds, an additional external transmission cooler may be beneficial.

Always confirm proper cooler connections and transmission fluid compatibility before installation.

Common Chevy S10 and Blazer Overheating Problems

Replacing the radiator can solve problems caused by corrosion, leakage, or restricted cooling passages.

However, overheating can also originate elsewhere in the cooling system.

Common causes include:

Failing Thermostat: A thermostat that remains closed can restrict coolant circulation and cause rapid temperature increases.

Weak Water Pump: A worn or damaged water pump may reduce coolant circulation.

Clogged Radiator: Internal deposits can reduce coolant flow and heat transfer.

Damaged Radiator Hoses: Collapsed or deteriorated hoses can restrict circulation or allow coolant to escape.

Inoperative Cooling Fans: Faulty relays, wiring, or fan motors can cause overheating during low-speed operation.

Air Trapped in the Cooling System: Air pockets can interrupt coolant circulation and cause unstable temperature readings.

Head Gasket Problems: Combustion gases entering the cooling system can cause overheating and excessive pressure.

Before replacing expensive cooling components, inspect the complete system and identify the actual cause of the problem.

Our Complete Car Cooling System Guide covers the fundamentals of radiator operation, coolant circulation, and cooling system maintenance.

Is the Cubauto 3-Row Radiator Kit Worth It?

For Chevrolet S10 and GMC truck owners looking to replace aging cooling components, this Cubauto package offers several practical advantages.

Instead of purchasing a radiator, fans, shroud, and temperature controller separately, the kit combines the primary components into one package.

The aluminum construction, three-row core, and dual electric fans make it particularly appealing for performance-oriented trucks and custom engine builds.

It may be a worthwhile option for:

• Restoring an older Chevrolet S10 or Blazer.
• Replacing a leaking factory radiator.
• Upgrading a GMC Sonoma cooling system.
• Building a V8-swapped S10 pickup.
• Installing electric cooling fans.
• Replacing aging cooling system components together.

The most important consideration remains proper fitment.

Verify radiator dimensions, hose routing, fan clearance, electrical requirements, and transmission cooler connections before purchasing.

Upgrade Your Chevy S10 Cooling System at Pro Street Online

Whether you’re rebuilding a dependable 4.3L V6 work truck or preparing a Chevrolet S10 for a V8 engine swap, cooling system reliability is essential.

The Cubauto 3-Row Aluminum Radiator with Dual 12-Inch Fans, Shroud, and Thermostat Relay Kit offers a comprehensive cooling solution with lightweight aluminum construction and temperature-controlled electric fans.

Its three-row core, included radiator cap, transmission cooler provisions, and complete fan assembly make it an attractive upgrade for compatible Chevrolet and GMC S-Series applications.

Shop aluminum radiators, electric cooling fans, performance cooling kits, and Chevrolet S10 upgrades at www.ProStreetOnline.com.