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CSF 3918 Radiator
| Brand | CSF 3918 |
|---|---|
| Core Thickness | 5/8 |
| Core Width | 14 5/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 26 9/16 |
| Inlet Diameter | 1 3/8 left |
| Outlet Diameter | 1 3/8 right |
| Down Flow Or Cross Flow Type | Cross flow |
| Radiator Core Row Quantity | 1 |
| Cap Included | No |
| Box Height (in) | 6 5/8 |
| Box Length (in) | 33 3/16 |
| Box Weight (lbs) | 8 |
| Box Width (in) | 19 3/16 |
| Hazardous Material | No |
| 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 Note | O.e.m. style plastic tank & aluminum core. |
| Fits | Lexus and Toyota · 4 vehicles |
OE-style design. Plastic tank and aluminum core construction matches the original layout.
Cross-flow radiator. Engineered for efficient cooling performance.
Wind tunnel tested to validate cooling performance.
Cross-references BBB Industries 13825, Partslink Numbering System TO3010372 and 16400-24320 for the same application. See all 3.
OE-Style Cooling Replacement
The CSF 3918 radiator is an OE-style replacement built with an aluminum core and plastic tanks for a direct-fit cooling solution. It is engineered for consistent heat transfer and validated through wind tunnel testing to support stable engine temperatures in everyday driving.
Key Features
- Aluminum core with plastic tank construction
- Cross-flow design with a single-row core
- Core thickness: 5/8 in.
- Core dimensions: 26 9/16 in. length and 14 5/16 in. width
- 1 3/8 in. inlet on the left and 1 3/8 in. outlet on the right
- OE-style plastic tank and aluminum core layout
- Cap not included
Detailed Description
Built by CSF, part number 3918 is designed for drivers who need a radiator that matches the original equipment layout while maintaining dependable cooling performance. The cross-flow configuration, single-row core, and OE-style plastic tank design make it a practical replacement for the 2020 Toyota Corolla, 2019 Toyota Corolla, and 2019 Lexus UX200. CSF manufactures a wide range of radiator applications and uses controlled testing methods to validate cooling performance before release.
This part cross-references BBB Industries 13825 for the same application.
What It Helps Address
- Overheating caused by a leaking or restricted radiator
- Coolant loss from cracked plastic tanks or aged seams
- Reduced cooling efficiency from a damaged core
- Temperature instability during stop-and-go driving
- Fitment issues when replacing an OE-style radiator
Installation Notes
Verify inlet and outlet orientation before installation: the inlet is on the left and the outlet is on the right. Confirm core dimensions and mounting points against the original radiator before removal. This radiator does not include a cap, and the OE-style layout is intended to simplify replacement on the 2020 Toyota Corolla, 2019 Toyota Corolla, and 2019 Lexus UX200.
Quality Assurance
CSF radiators are manufactured in ISO/TSO-certified facilities and are engineered to high-performance standards. The brand has supplied radiators worldwide for decades and uses laboratory testing to validate cooling performance across a broad range of vehicle applications.
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2020 | Toyota | Corolla | Sedan | 2.0L | L4 | N/A | OE Style Design; Japan Built |
| 2019 | Lexus | UX200 | — | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2019 | Toyota | Corolla | Hatchback | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2019 | Toyota | Corolla | Hatchback | 1.8L | L4 | N/A | OE style design ensures optimal fitment and performance. |
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