Part #: 3902

CSF 3902 Radiator

⚙️ 31 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus and Toyota, Avalon, Camry, ES300h, NX350h, RAV4, and Venza
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Overview of CSF Radiator Part Number 3902

The CSF radiator 3902 is engineered for reliable cooling performance in select Lexus and Toyota vehicles. Designed with a cross flow aluminum core and plastic tanks, this radiator supports efficient heat dissipation for models like the Toyota Camry and Lexus NX350h.

  • Core thickness: 5/8 inch for optimal heat transfer
  • Core dimensions: 27 9/16 inches length by 17 5/16 inches width
  • Aluminum core material combined with durable plastic tanks
  • Cross flow design enhances coolant flow and cooling efficiency
  • Inlet and outlet diameters both 1 1/2 inches, positioned left and right respectively
  • Single-row radiator core for streamlined cooling
  • Cap not included
  • Box dimensions: 33 5/8 inches length, 22 3/8 inches width, 6 7/8 inches height
  • Box weight: 9 lbs

Detailed Radiator Specifications and Features

The CSF radiator 3902 features a 5/8 inch thick aluminum core that provides effective heat dissipation while maintaining lightweight construction. The core measures 27 9/16 inches in length and 17 5/16 inches in width, offering a substantial surface area for cooling. The plastic tanks are designed in an OEM style, ensuring compatibility and durability. This radiator uses a cross flow configuration, which allows coolant to flow horizontally across the core, improving thermal efficiency. Both the inlet and outlet have a 1 1/2 inch diameter, with the inlet located on the left and the outlet on the right side, matching factory specifications for proper fitment.

Compatible Vehicles and Applications

This radiator is compatible with a range of Lexus and Toyota models, including:

  • Lexus NX350h
  • Lexus ES300h
  • Toyota Camry
  • Toyota Avalon
  • Toyota RAV4
  • Toyota Venza

It is designed to replace original equipment radiators in these vehicles, maintaining proper cooling system performance and reliability.

Common Issues Addressed by CSF Radiator 3902

  • Overheating due to radiator core damage or clogging
  • Coolant leaks from cracked or worn plastic tanks
  • Reduced cooling efficiency from corrosion or core degradation
  • Incompatible radiator dimensions causing fitment problems
  • Failure of OEM radiator leading to engine temperature fluctuations

Installation Notes and Tips

When installing the CSF radiator 3902, ensure the inlet and outlet hose connections match the 1 1/2 inch diameter specifications and are positioned correctly (inlet left, outlet right). Verify the radiator core dimensions fit within the engine bay without interference. Since the radiator does not include a cap, reuse the existing cap or source a compatible replacement. Properly bleed the cooling system after installation to avoid air pockets and ensure optimal performance.

Quality Assurance and Warranty

CSF radiators are manufactured with OEM-style plastic tanks and aluminum cores to meet or exceed factory standards. This radiator is free of hazardous materials and undergoes quality control inspections to ensure durability and performance. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.

BrandCSF
Part Number3902
Core Thickness5/8
Core Width17 5/16
Core MaterialAluminum
Tank MaterialPlastic
Core Length27 9/16
Inlet Diameter1 1/2 left
Outlet Diameter1 1/2 right
Down Flow Or Cross Flow TypeCross flow
Radiator Core Row Quantity1
Cap IncludedNo
Box Height (in)6 7/8
Box Length (in)33 5/8
Box Weight (lbs)9
Box Width (in)22 3/8
Hazardous MaterialNo
Inlet Length (in)17 15/16
Inlet Width (in)1 3/8
Oil Cooler (in)No
Outlet Length (in)17 15/16
Outlet Width (in)1 3/8
Tech NoteO.e.m. style plastic tank & aluminum core.

This part fits 31 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2026ToyotaCamry2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2025LexusES300h2.5LL4N/AUpgraded with Higher Performance & Stronger B-Tube Design
2025LexusNX350h2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2025ToyotaCamry2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2025ToyotaRAV42.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2024LexusES300h2.5LL4N/AUpgraded with Higher Performance & Stronger B-Tube Design
2024LexusNX350h2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2024ToyotaCamry2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2024ToyotaRAV42.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2024ToyotaVenza2.5LL4FULL HYBRID EV-GAS (FHEV)N/A
2023LexusES300h2.5LL4N/AUpgraded with Higher Performance & Stronger B-Tube Design
2023LexusNX350h2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2023ToyotaCamry2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2023ToyotaRAV42.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2023ToyotaVenza2.5LL4FULL HYBRID EV-GAS (FHEV)N/A
2022LexusES300h2.5LL4N/AUpgraded with Higher Performance & Stronger B-Tube Design
2022LexusNX350h2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2022ToyotaAvalon2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2022ToyotaCamry2.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2022ToyotaRAV42.5LL4FULL HYBRID EV-GAS (FHEV)N/AUpgraded with Higher Performance & Stronger B-Tube Design
2022ToyotaVenza2.5LL4FULL HYBRID EV-GAS (FHEV)N/A
2021LexusES300h2.5LL4N/AUpgraded with Higher Performance & Stronger B-Tube Design
2021ToyotaAvalon2.5LL4ELECTRIC/GASN/AOE Style Design; Hybrid
2021ToyotaCamry2.5LL4N/AOE Style Design; Hybrid
2020LexusES300h2.5LL4N/AOE Style Design; North America Built
2020ToyotaAvalon2.5LL4ELECTRIC/GASN/AOE Style Design; Hybrid
2020ToyotaCamry2.5LL4N/AOE Style Design; Hybrid
2019LexusES300h2.5LL4N/AOE Style Design; North America Built
2019ToyotaAvalon2.5LL4ELECTRIC/GASN/AOE Style Design; Hybrid
2019ToyotaCamry2.5LL4N/AOE Style Design; Hybrid
2018ToyotaCamry2.5LL4N/AOE Style Design; Hybrid

* 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:

1369516400-F002016400-F0021TO3010368

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