K2 Industries
1999-2003 Lexus RX300 OE Style Radiator
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with tags and original packaging. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
1999-2003 Lexus RX300 OE Style Radiator
Direct replacement radiator engineered to original equipment specifications for the RX300. Built to handle factory cooling demand with proven thermal efficiency. Designed for seamless bolt-in installation at existing mounting points.
Key Features
- OE-spec core design - Maintains factory cooling capacity without modification to existing plumbing or fans
- Factory mounting compatibility - Bolts to original attachment points with no drilling or fabrication required
- Direct bolt-in fit - No trimming, no bracket adapter kits, no custom hose routing
Specs
- Hard panel aluminum construction
- Factory OEM cooling configuration
- Single unit assembly
Whats Included
- Radiator assembly
Frequently Asked Questions
Will this bolt directly into my vehicle without modifying hoses or brackets?
Yes. This radiator mounts at the factory attachment points using the original bolt locations. Your existing hose routing and fan shroud stay as-is—no modifications needed.
Do I need to flush the cooling system before installation?
Drain and flush the old coolant from your system before the new radiator goes in. This prevents debris from clogging the new core and ensures fresh fluid chemistry.
What if the radiator leaks within the first month?
Return it within 30 days for a replacement. Test-fit and pressurize your system during initial startup to catch any shipping-related defects early.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-10476-LEX-006-EC |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information