Part #: 3299

CSF 3299 Radiator

1 Row Plastic Tank Aluminum Core
⚙️ 5 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦1 Row Plastic Tank Aluminum Core
🚗Fitment: Lexus and Toyota, Highlander and RX400h
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of CSF 3299 Radiator for Lexus and Toyota

The CSF 3299 radiator is designed specifically for Lexus Highlander and Toyota RX400h models, providing reliable cooling performance. Featuring a durable aluminum core paired with plastic tanks, this radiator supports efficient heat dissipation and long-term vehicle operation.

  • Core thickness: 7/8 inch
  • Core width: 18 11/16 inches
  • Core length: 26 9/16 inches
  • Aluminum core material with plastic tanks
  • Cross flow design for optimized coolant flow
  • Inlet diameter: 1 3/8 inches (right side)
  • Outlet diameter: 1 1/2 inches (left side)
  • Single row radiator core
  • Cap not included (CSF cap number 4513 compatible)

Details on the 1 Row Plastic Tank Aluminum Core Product Line

The CSF 1 Row Plastic Tank Aluminum Core product line combines OEM-style plastic tanks with a robust aluminum core to balance durability and weight. This design supports effective heat transfer while maintaining compatibility with factory cooling systems. The single-row core thickness and cross flow configuration are engineered to meet the cooling demands of specific Lexus and Toyota models, including the Highlander and RX400h.

Technical Description and Specifications

The CSF 3299 radiator features a 7/8 inch thick aluminum core measuring 18 11/16 inches wide and 26 9/16 inches long. Its cross flow design enhances coolant circulation, improving heat dissipation efficiency. The plastic tanks are engineered to OEM specifications, ensuring a proper fit and reliable sealing. The inlet and outlet diameters are 1 3/8 inches (right) and 1 1/2 inches (left), respectively, with inlet and outlet lengths of 19 1/4 inches and widths of approximately 1 5/16 inches, facilitating straightforward hose connections. This radiator weighs approximately 11 pounds and is packaged in a box measuring 32 5/8 inches by 22 9/16 inches by 6 1/16 inches.

Common Applications and Problem Resolution

  • Replacement for leaking or cracked radiators in Lexus Highlander and Toyota RX400h
  • Solves overheating issues caused by inefficient heat dissipation
  • Addresses coolant leaks from damaged plastic tanks
  • Restores proper coolant flow with cross flow core design
  • Suitable for vehicles requiring OEM-style radiator core and tank materials

Installation Notes and Tips

Ensure compatibility with your Lexus Highlander or Toyota RX400h before installation. The radiator does not include a cap; use CSF cap number 4513 or an equivalent OEM cap. Verify hose diameters match the inlet and outlet sizes (1 3/8 inch inlet on the right, 1 1/2 inch outlet on the left) for proper fitment. Handle the plastic tanks carefully during installation to avoid damage. It is recommended to flush the cooling system before installing the new radiator to prevent contamination.

Quality Assurance and Warranty

The CSF 3299 radiator is manufactured to meet OEM standards, featuring a durable aluminum core and plastic tanks designed for longevity. This radiator is free of hazardous materials and undergoes quality control to ensure reliable performance. Warranty details should be confirmed with the distributor or manufacturer, as they may vary.

BrandCSF
Part Number3299
Position1 Row Plastic Tank Aluminum Core
Core Thickness7/8
Core Width18 11/16
Core MaterialAluminum
Tank MaterialPlastic
Core Length26 9/16
Inlet Diameter1 3/8 right
Outlet Diameter1 1/2 left
Down Flow Or Cross Flow TypeCross flow
Radiator Core Row Quantity1
Cap IncludedNo
Box Height (in)6 1/16
Box Length (in)32 5/8
Box Weight (lbs)11
Box Width (in)22 9/16
Csf Cap Number4513
Hazardous MaterialNo
Inlet Length (in)19 1/4
Inlet Width (in)1 5/16
Outlet Length (in)19 1/4
Outlet Width (in)1 5/16
Tech NoteO.e.m. style plastic tanks & aluminum core.

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2008LexusRX400h3.3LV6N/AOE Style Design; Use Micro, 13 psi Cap; 1 Row Plastic Tank Aluminum Core
2007LexusRX400h3.3LV6N/AOE Style Design; Use Micro, 13 psi Cap; 1 Row Plastic Tank Aluminum Core
2007ToyotaHighlander3.3LV6ELECTRIC/GASN/AOE Style Design; Use Micro, 13 psi Cap; 1 Row Plastic Tank Aluminum Core
2006LexusRX400h3.3LV6N/AOE Style Design; Use Micro, 13 psi Cap; 1 Row Plastic Tank Aluminum Core
2006ToyotaHighlander3.3LV6ELECTRIC/GASN/AOE Style Design; Use Micro, 13 psi Cap; 1 Row Plastic Tank Aluminum Core

* 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:

16041-2035016041-2035229298012929CU2929LX3010132

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