Part #: 3918

CSF 3918 Radiator

⚙️ 4 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus and Toyota, Corolla and UX200
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of CSF Radiator Part Number 3918

The CSF radiator 3918 is designed specifically for Lexus and Toyota vehicles, including the Corolla and UX200 models. Engineered with a cross flow design, this radiator ensures efficient cooling performance tailored to your vehicle's needs.

  • Core Thickness: 5/8 inch
  • Core Width: 14 5/16 inches
  • Core Length: 26 9/16 inches
  • Core Material: Aluminum
  • Tank Material: Plastic
  • Inlet Diameter: 1 3/8 inches (left side)
  • Outlet Diameter: 1 3/8 inches (right side)
  • Cross flow radiator type with a single core row
  • Cap not included

Detailed Product Description

The CSF radiator 3918 features an aluminum core combined with OE-style plastic tanks, providing a balance of durability and lightweight construction. Its cross flow design promotes effective heat dissipation by allowing coolant to flow horizontally across the core, which is beneficial for maintaining optimal engine temperatures in Lexus Corolla and Toyota UX200 vehicles. The radiator core measures 26 9/16 inches in length and 14 5/16 inches in width, with a thickness of 5/8 inch, ensuring sufficient surface area for heat exchange. Both the inlet and outlet have a diameter of 1 3/8 inches, positioned on the left and right sides respectively, matching OEM specifications for a direct replacement.

Compatible Vehicles and Common Applications

  • Replacement radiator for Lexus Corolla models requiring a cross flow aluminum core radiator
  • Cooling system upgrade or repair for Toyota UX200 vehicles
  • Addressing overheating issues caused by radiator core damage or leaks
  • Resolving coolant flow restrictions due to clogged or corroded radiator cores
  • Suitable for vehicles needing OEM-style plastic tank radiators with aluminum cores

Installation Notes and Tips

When installing the CSF radiator 3918, ensure the inlet and outlet hose connections match the 1 3/8 inch diameter specifications on the left and right sides respectively. Verify that the radiator core dimensions align with your vehicle’s mounting points to avoid fitment issues. Since the radiator does not include a cap, reuse the existing radiator cap or source a compatible replacement. Properly bleed the cooling system after installation to prevent air pockets and ensure optimal performance.

Quality Assurance and Warranty Information

CSF radiators are manufactured to meet OEM standards, featuring high-quality aluminum cores and durable plastic tanks. This radiator is free of hazardous materials and weighs approximately 8 pounds, making it a reliable component for your vehicle’s cooling system. While specific warranty details are not provided, CSF products typically adhere to industry quality controls to ensure long-term functionality and fitment accuracy.

BrandCSF
Part Number3918
Core Thickness5/8
Core Width14 5/16
Core MaterialAluminum
Tank MaterialPlastic
Core Length26 9/16
Inlet Diameter1 3/8 left
Outlet Diameter1 3/8 right
Down Flow Or Cross Flow TypeCross flow
Radiator Core Row Quantity1
Cap IncludedNo
Box Height (in)6 5/8
Box Length (in)33 3/16
Box Weight (lbs)8
Box Width (in)19 3/16
Hazardous MaterialNo
Inlet Length (in)14 15/16
Inlet Width (in)1 3/16
Oil Cooler (in)No
Outlet Length (in)14 15/16
Outlet Width (in)1 3/16
Tech NoteO.e.m. style plastic tank & aluminum core.

This part fits 4 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2020ToyotaCorollaSedan2.0LL4N/AOE Style Design; Japan Built
2019LexusUX2002.0LL4N/AOE style design ensures optimal fitment and performance.
2019ToyotaCorollaHatchback2.0LL4N/AOE style design ensures optimal fitment and performance.
2019ToyotaCorollaHatchback1.8LL4N/AOE style design ensures optimal fitment and performance.

* 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:

1382516400-24320TO3010372

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