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Denso 221-9594 Radiator
| Brand | Denso 221-9594 |
|---|---|
| Fits | Lexus · 12 vehicles |
OE experience. Built to meet strict OE standards for fit, function, and durability.
Radiator performance. Helps maintain proper engine cooling and dependable operation.
Tested for reliable performance under demanding conditions.
Cross-references APDI 8013611, DPI Performance Racing Products 13611 and Lexus 16400-36150 for the same application. See all 6.
Denso Radiator 221-9594 for Lexus Cooling Service
Denso radiator 221-9594 is an OE-style replacement radiator built for precise fitment and dependable engine cooling. It is engineered to match factory dimensions and cooling requirements for select Lexus applications, including Lexus RC300 and Lexus GS300 models.
Key Features
- Core height: 16.7500
- Core width: 28.4375
- Core thickness: 1.0625
- Inlet diameter: 1.5000
- Outlet diameter: 1.5000
- No transmission oil cooler included
- Built to OE configuration standards for tanks, fin pitch, core dimensions, and materials
Product Details
Denso is a major OE radiator supplier, and the 221-9594 radiator reflects that factory-focused approach. The core dimensions, inlet and outlet sizing, and overall configuration are matched to OE requirements for proper coolant flow and heat transfer. This radiator is a direct-fit cooling component for 2020-2024 Lexus RC300, 2018-2019 Lexus GS300, 2018-2019 Lexus RC300, 2016-2017 Lexus GS200t, and 2016 Lexus RC200t applications.
This part cross-references Spectra Premium CU13611 for the same application.
What This Radiator Helps Address
- Engine overheating caused by reduced radiator efficiency
- Coolant temperature instability during stop-and-go driving
- Heat buildup from a damaged, clogged, or leaking radiator
- Poor cooling performance after a front-end repair or system refresh
- Fitment issues when replacing an OE Lexus radiator
Installation Notes and Tips
Verify radiator dimensions, inlet and outlet diameter, and vehicle application before installation. Inspect hoses, clamps, coolant condition, and adjacent cooling system components during replacement. Because this radiator does not include a transmission oil cooler, confirm your vehicle’s original cooling setup matches this configuration. Proper bleeding and refill with the correct coolant are important after installation.
Quality Assurance
Denso radiators are built to OE standards and undergo durability and function testing to support reliable cooling performance under demanding operating conditions. The 221-9594 is designed for consistent fitment and dependable service in Lexus RC300 and Lexus GS300 cooling system repairs.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2024 | Lexus | RC300 | — | N/A | OE; Radiator |
| 2023 | Lexus | RC300 | — | N/A | OE; Radiator |
| 2022 | Lexus | RC300 | — | N/A | OE; Radiator |
| 2021 | Lexus | RC300 | — | N/A | OE; Radiator |
| 2020 | Lexus | RC300 | — | N/A | OE; Radiator |
| 2019 | Lexus | GS300 | — | N/A | — |
| 2019 | Lexus | RC300 | — | N/A | — |
| 2018 | Lexus | GS300 | F Sport | N/A | — |
| 2018 | Lexus | RC300 | — | N/A | — |
| 2017 | Lexus | GS200t | — | N/A | — |
| 2016 | Lexus | GS200t | — | N/A | — |
| 2016 | Lexus | RC200t | — | N/A | — |
| No rows match your filter. | |||||