Keystone TO3010275 OEM Replacement Radiator for Toyota 4Runner V8 4.7L

The Keystone TO3010275 is a direct-fit OEM replacement radiator engineered for the Toyota 4Runner equipped with the 4.7L V8 engine. Designed to restore factory cooling performance, this radiator replaces Toyota OEM part number 1640050300 (16400-50300) and installs without cutting, bending, or modifications.

Key Features:

• Construction: Aluminum core with plastic end tanks — matches OEM material specifications
• Core rows: Single-row core design
• Core dimensions: Approximately 25.57 x 25.31 x 1.25 inches
• Integrated transmission oil cooler — designed for automatic transmission-equipped vehicles
• No engine oil cooler included
• Inlet location: Upper left; Outlet location: Lower right
• Inlet/outlet diameter: Approximately 1.38–1.5 inches
• Direct bolt-on fitment — no modifications required for installation

OEM & Cross-Reference Part Numbers:

• Toyota OEM: 1640050300 / 16400-50300
• Partslink: TO3010275
• DPI: 2581 / CU2581

This radiator is a quality replacement for vehicles that have developed leaks, cracks in the end tanks, or internal blockages caused by years of use. The aluminum core construction provides efficient heat dissipation to keep the 4.7L V8 operating within safe temperature ranges.