Vehicle Compatibility

This aluminum radiator fits:

Toyota 4Runner

• 1996 Toyota 4Runner 2.7L
• 1996 Toyota 4Runner 3.4L V6
• 1997 Toyota 4Runner
• 1998 Toyota 4Runner
• 1999 Toyota 4Runner
• 2000 Toyota 4Runner
• 2001 Toyota 4Runner
• 2002 Toyota 4Runner

Engine Options

• 2.7L Inline-4
• 3.4L V6

Transmission

• Automatic Transmission Models

Always verify fitment before ordering.

Full Aluminum Construction

One of the biggest advantages of this radiator is its all-aluminum design.

Unlike factory radiators that utilize plastic end tanks, this unit features:

• Aluminum core
• Aluminum end tanks
• TIG-welded construction
• Vacuum-brazed core assembly

Benefits include:

Increased Durability

Aluminum tanks eliminate one of the most common failure points found in aging factory radiators.

Better Heat Dissipation

Aluminum efficiently transfers heat away from coolant, helping maintain stable engine temperatures.

Improved Reliability

Many off-road enthusiasts and overlanders choose aluminum radiators because of their ability to withstand demanding environments.

Core Specifications

Core Dimensions

• 22.56″ x 25.9″ x 1.57″
• 573mm x 658mm x 40mm

Overall Dimensions

• 27.79″ x 28.66″ x 3.6″
• 706mm x 728mm x 91.5mm

Inlet and Outlet Size

• 35mm
• 1.38 inches

These dimensions are designed to provide direct replacement fitment while supporting improved cooling efficiency.

Vacuum Brazed Core Technology

Unlike lower-quality radiators that rely heavily on adhesives or epoxy materials, this radiator utilizes vacuum-brazed core construction.

Advantages include:

• Improved heat transfer
• Stronger construction
• Better pressure resistance
• Increased longevity

The result is a cooling system component designed to handle both daily driving and demanding conditions.

TIG-Welded Tanks

The radiator tanks are TIG welded for added strength and durability.

Benefits include:

• Strong weld integrity
• Better resistance to vibration
• Improved reliability off-road
• Reduced risk of leaks

For lifted 4Runners and trail-driven vehicles, durability is just as important as cooling performance.

Included Radiator Cap

This radiator includes a replacement radiator cap, allowing owners to complete installation without sourcing additional components.

While simple, having the cap included helps streamline installation and ensures proper system operation.

Perfect for Off-Road and Overland Builds

Third-generation 4Runners have become one of the most popular overlanding platforms in North America.

This radiator upgrade is particularly useful for:

• Overland builds
• Off-road rigs
• Rock crawlers
• Towing applications
• Expedition vehicles
• High-mileage daily drivers

Additional cooling capacity can help maintain consistent temperatures during long climbs, slow-speed trail driving, and heavy-load situations.

Installation Notes

This radiator is designed as a direct replacement for factory units.

Installation typically includes:

• Draining coolant
• Removing factory radiator
• Swapping hoses and transmission cooler lines
• Installing the new radiator
• Refilling and bleeding the cooling system

Professional installation is recommended for owners unfamiliar with cooling system service.

Benefits of an Aluminum Radiator

Upgrading to an aluminum radiator offers several advantages:

• Improved cooling efficiency
• Better durability
• Enhanced reliability
• Reduced risk of tank failure
• Ideal for towing and off-road use
• Long-term protection for aging vehicles

For many Toyota enthusiasts, radiator replacement is considered cheap insurance compared to the cost of overheating repairs.

Final Verdict

For owners of a 1996-2002 Toyota 4Runner, an all-aluminum radiator is one of the smartest preventative maintenance upgrades available. The combination of TIG-welded aluminum construction, vacuum-brazed core technology, and direct-fit installation makes this radiator an attractive option for daily drivers, off-road builds, and overland rigs alike.

Whether you’re replacing a worn-out factory radiator or upgrading your cooling system before your next adventure, this aluminum radiator provides the durability and cooling performance needed to keep your third-generation 4Runner running strong for years to come.