Part #: 2581

One Stop Solutions 2581 Radiator

7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Toyota, 4Runner
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Overview of One Stop Solutions Radiator for Toyota 4Runner

The One Stop Solutions radiator, part number 2581, is designed specifically for Toyota 4Runner models. Engineered to provide reliable cooling performance, this radiator features a crossflow design and includes a transmission oil cooler to support your vehicle's cooling system needs.

  • Hassle free installation for quick replacement
  • OE performance with components torqued to factory specifications
  • Engineering enhancements for improved cooling and extended service life
  • Premium grade tubes, fins, headers, and plastic tanks
  • Drop-in fit with all necessary fittings and hardware included
  • 100% tested up to three times during production
  • Includes plated transmission oil cooler with 9 13/16 inch fitting spacing

Detailed Radiator Specifications and Features

This One Stop Solutions radiator features a core height of 25 9/16 inches, core width of 23 5/16 inches, and a core thickness of 1 1/4 inches, providing efficient heat dissipation. The core is constructed from PA material, while the tanks are made of durable plastic. The radiator is designed with a crossflow configuration, optimizing coolant flow and heat exchange. Both the inlet and outlet diameters measure 1 1/2 inches, with header lengths of 24 5/16 inches and widths of 2 1/4 inches. The included transmission oil cooler is plated and spaced 9 13/16 inches between fittings, enhancing transmission fluid cooling. This radiator does not include an engine oil cooler or cap.

Compatible Vehicles and Applications

This radiator is compatible with Toyota 4Runner models, providing a direct replacement solution for the cooling system. It is ideal for addressing common radiator-related issues such as overheating, coolant leaks, and transmission fluid temperature regulation.

  • Overheating due to radiator core damage or clogging
  • Coolant leaks from cracked or worn tanks
  • Transmission fluid overheating requiring integrated cooler
  • Reduced cooling efficiency from corrosion or wear
  • Replacement of factory radiator with improved durability

Installation Notes and Tips

Installation of the One Stop Solutions radiator 2581 is straightforward with a drop-in fit design. Ensure all fittings and hardware are securely torqued to factory specifications. Verify the transmission oil cooler connections are properly sealed to prevent leaks. It is recommended to flush the cooling system before installation to maintain optimal performance.

Quality Assurance and Warranty Information

Each radiator undergoes rigorous testing up to three times during production to ensure reliability and performance. Components are assembled and torqued to meet factory standards. While specific warranty details are not provided, One Stop Solutions products are manufactured to meet OE quality requirements, supporting long-term durability and function.

BrandOne Stop Solutions
Part Number2581
Cap IncludedNO
Core Height25 9/16
Core MaterialPA
Core Row Quantity1
Core Thickness1-1/4
Core Thickness32
Core Width23 5/16
Down Flow Or Cross Flow TypeCROSSFLOW
Engine Oil Cooler IncludedNO
Engine Oil Cooler TypeNONE
Inlet Diameter1 1/2
Inlet Header Length24 5/16
Inlet Header Width2 1/4
Outlet Diameter1 1/2
Outlet Header Length24 5/16
Outlet Header Width2 1/4
Tank MaterialPLASTIC
Transmission Oil Cooler Distance between Fittings9 13/16
Transmission Oil Cooler IncludedYES
Transmission Oil Cooler TypePLATED

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009Toyota4Runner4.7LV8N/A
2008Toyota4Runner4.7LV8N/A
2007Toyota4Runner4.7LV8N/A
2006Toyota4Runner4.7LV8N/A
2005Toyota4Runner4.7LV8N/A
2004Toyota4Runner4.7LV8N/A
2003Toyota4Runner4.7LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1640050300566238012581A2581CU2581

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.