APDI 8012426 Radiator

APDI 8012426 Radiator for Infiniti

The APDI 8012426 radiator is a direct-fit cooling replacement for select Infiniti applications, including the 2002-2006 Infiniti Q45 and 2003-2004 Infiniti M45. Built with a plastic tank and aluminum core, it is designed to match the original radiator layout and cooling connections for a straightforward service replacement.

APDI Radiator products focus on application-specific fitment and OE-style construction. This radiator follows that approach with a single-row aluminum core, integrated transmission oil cooler, and inlet and outlet sizing that aligns with the factory cooling system on the listed Infiniti models.

Key Features

• Plastic tank aluminum construction for OE-style radiator replacement
• Single-row core design for factory-matched cooling layout
• Core dimensions: 17-3/4 in. height, 27 in. width, 5/8 in. thickness
• 1-3/8 in. inlet and 1-3/8 in. outlet connections
• Built-in transmission oil cooler with 14-3/4 in. cooler section
• Fits 2002-2006 Infiniti Q45, radiator
• Fits 2003-2004 Infiniti M45, radiator

Detailed Description

APDI part number 8012426 is a radiator for Nissan-based Infiniti cooling systems that require a plastic tank aluminum design. The core dimensions and hose connections are specified to support proper fitment in the 2002-2006 Infiniti Q45 and 2003-2004 Infiniti M45, while the integrated transmission oil cooler helps maintain the factory-style fluid routing used on these vehicles. If you are replacing a leaking, clogged, or damaged radiator on an Infiniti Q45 or Infiniti M45, APDI 8012426 provides a direct replacement format built around the original application.

This part cross-references DENSO Auto Parts 221-3429 for the same application.

What It Helps Address

• Coolant leaks from a cracked or aging radiator tank
• Restricted coolant flow caused by internal buildup or corrosion
• Overheating from reduced heat transfer through the core
• Transmission fluid cooling concerns tied to a failing cooler section
• Fitment issues when replacing the factory radiator on listed Infiniti models

Installation Notes and Tips

Verify hose diameter, core size, and transmission cooler connection points before installation. Flush the cooling system and inspect hoses, clamps, and related components for wear before installing the new radiator. Confirm vehicle fitment by year and model, especially when servicing a 2002-2006 Infiniti Q45 or 2003-2004 Infiniti M45.

Quality Assurance

APDI designs radiator replacements for application-specific fitment and OE-style construction. Part number 8012426 is built to match the listed Infiniti cooling system requirements for a direct replacement installation.