Koyorad
Koyorad Radiator

Koyorad A2588 Radiator

Brand Koyorad A2588
Core Height 15.75
Core Material Aluminum
Core Row Quantity 1
Core Thickness 0.625
Core Width 29.5
Inlet Diameter 1.375
Internal Transmission Oil Cooler Yes
Outlet Diameter 1.375
Tank Material Plastic
Title Koyorad a2588 radiator
Transmission Oil Cooler Diameter 1.0625
Transmission Oil Cooler Included Yes
Product line Koyorad Radiator
Fits INFINITI · 5 vehicles

OE equivalent replacement. Built to match the original radiator’s function and fit.

Aluminum core. Helps promote efficient heat transfer for dependable cooling.

Transmission oil cooler included. Adds integrated cooling support in one radiator assembly.

$135.26Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $135.26
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Koyorad A2588 Radiator for INFINITI G35

The Koyorad A2588 radiator is an OE-equivalent replacement built for 2003-2007 INFINITI G35 applications, including the 2004-2007 coupe. It combines an aluminum core with plastic tanks and includes an internal transmission oil cooler for direct-fit cooling system service.

Koyorad Radiator products are developed with the technical experience needed to deliver a replacement that matches factory-style fitment and cooling function. For INFINITI G35 radiator replacement needs, part number A2588 provides a practical solution for restoring proper engine and transmission temperature control.

Key Features

  • Part number: A2588
  • OE-equivalent radiator replacement from Koyorad
  • Aluminum core with plastic tank construction
  • Single-row core design
  • Core dimensions: 29.5 in. wide, 15.75 in. high, 0.625 in. thick
  • Inlet and outlet diameter: 1.375 in.
  • Internal transmission oil cooler included
  • Transmission oil cooler diameter: 1.0625 in.

Detailed Description

The Koyorad A2588 radiator is engineered for direct replacement service on select INFINITI G35 models. It is built with an aluminum core for efficient heat transfer and plastic end tanks for a factory-style configuration. The integrated transmission oil cooler adds an important cooling circuit for vehicles equipped with automatic transmission cooling through the radiator.

Compatible With 2003 INFINITI G35 and 2004-2007 INFINITI G35 Coupe applications, this radiator supports routine cooling system repair when the original unit is leaking, restricted, or no longer maintaining stable operating temperatures. If you are searching for a Koyorad A2588 radiator for INFINITI G35 cooling system replacement, this part is matched to the listed vehicle fitment.

Common Problems This Part Can Address

  • Coolant leaks from a damaged or aging radiator
  • Overheating caused by reduced heat dissipation
  • Transmission fluid temperature issues related to a failing cooler circuit
  • Cracked or deteriorated plastic tank seams
  • Restricted coolant flow from internal radiator wear

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and transmission cooler connections before installation. Drain the cooling system fully, inspect hoses and clamps, and replace worn seals or related components during service. After installation, refill with the correct coolant mixture and bleed air from the system according to factory procedure.

For best results, confirm fitment by year and body style before ordering. This part is listed for 2003 INFINITI G35 and 2004-2007 INFINITI G35 Coupe applications only.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused construction. Part number A2588 is built to match the listed cooling system requirements for the confirmed INFINITI G35 fitment.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2007INFINITIG353.5LV6N/ACoupe; Koyorad Radiator
2006INFINITIG353.5LV6N/ACoupe; Koyorad Radiator
2005INFINITIG353.5LV6N/ACoupe; Koyorad Radiator
2004INFINITIG353.5LV6N/ACoupe; Koyorad Radiator
2003INFINITIG353.5LV6N/A—