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CSF 3897 Radiator
| Brand | CSF 3897 |
|---|---|
| Core Thickness | 1 1/4 |
| Core Width | 29 11/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 18 11/16 |
| Inlet Diameter | 1 1/4 left |
| Outlet Diameter | 1 1/4 left |
| Down Flow Or Cross Flow Type | Down flow |
| Radiator Core Row Quantity | 1 |
| Cap Included | No |
| Box Height (in) | 5 11/16 |
| Box Length (in) | 32 13/16 |
| Box Weight (lbs) | 12 |
| Box Width (in) | 25 5/16 |
| Hazardous Material | No |
| Inlet Length (in) | 30 3/16 |
| Inlet Width (in) | 1 5/8 |
| Oil Cooler (in) | No |
| Outlet Length (in) | 30 3/16 |
| Outlet Width (in) | 1 5/8 |
| Tech Note | O.e.m. style plastic tank & aluminum core. |
| Fits | Acura · 7 vehicles |
OEM-style construction. Plastic tanks and an aluminum core match the original design.
Wind tunnel tested. Cooling performance is validated in the lab for dependable heat transfer.
ISO/TSO certified. Built in certified factories with over 50 years of radiator production.
Cross-references BBB Industries 13766, 19010-5YF-A01 and AC3010158 for the same application. See all 3.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
CSF 3897 Radiator for Acura RDX
CSF 3897 is an OE-style radiator built with an aluminum core and plastic tanks for Acura RDX applications. It is engineered for direct-fit cooling performance and includes a heavier-duty 30 mm core on select 2021-2025 Acura RDX models, compared with the OEM 27 mm design.
Key Features
- Aluminum core with plastic tank construction
- Down-flow radiator design
- 1-row core configuration
- Core thickness: 1 1/4 in.
- Inlet and outlet diameter: 1 1/4 in., left side
- OE-style plastic tank and aluminum core layout
- Wind tunnel tested for cooling performance validation
- Manufactured by CSF, an ISO/TSO certified radiator producer
Detailed Description
This CSF radiator is designed for Acura RDX cooling system service where a direct OE-style replacement is needed. Part number 3897 uses an aluminum core with plastic tanks to match the factory-style layout while providing a heavy-duty core upgrade on 2021-2025 Acura RDX models. CSF manufactures a wide range of radiators for leading vehicle brands and validates cooling performance through laboratory testing. This part cross-references BBB Industries 13766 for the same application.
Fitment
- Fits 2021-2025 Acura RDX, N/A. Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm.
- Fits 2019-2020 Acura RDX, N/A. OE style design ensures optimal fitment and performance.
Common Uses
- Replacing a leaking or cracked radiator tank
- Restoring coolant flow after internal core restriction
- Addressing overheating caused by reduced heat transfer
- Replacing a damaged OE-style radiator assembly
- Servicing Acura RDX cooling system wear over time
Installation Notes
Verify inlet and outlet orientation before installation, as this radiator uses left-side inlet and outlet connections. Confirm radiator dimensions and mounting layout against the original unit before removal. Transfer any vehicle-specific components only if required by the application and not supplied with the replacement part.
Quality Assurance
CSF radiators are produced under ISO/TSO-certified manufacturing standards and are tested for cooling performance validation. Part number 3897 is built to OE-style specifications for Acura RDX fitment and cooling-system service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2025 | Acura | RDX | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2024 | Acura | RDX | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2023 | Acura | RDX | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2022 | Acura | RDX | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2021 | Acura | RDX | 2.0L | L4 | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2020 | Acura | RDX | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
| 2019 | Acura | RDX | 2.0L | L4 | N/A | OE style design ensures optimal fitment and performance. |
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