Chevrolet Silverado 1500 LS Radiator - Mishimoto - `03-`06. A direct-fit replacement radiator designed for 2003–2006 Silverado 1500 LS models, offering reliable cooling performance and long-term durability.

This Mishimoto radiator uses an aluminum core with OEM-spec plastic end tanks to maintain stock cooling efficiency while replacing aged, clogged, or leaking factory radiators. It is engineered as a direct OEM replacement, so no cutting, bending, or modification should be required for proper fitment in compatible Silverado LS applications. Built for enthusiasts who plan maintenance or light performance upgrades, the unit supports factory engine bay equipment and comes backed by Mishimoto’s Lifetime Warranty.

Features

• Direct OEM replacement for 2003–2006 Chevrolet Silverado 1500 LS (see application guide for exact fitment)
• Aluminum core paired with OEM-spec plastic end tanks for reliable cooling
• Bolt-in fitment that works with stock engine bay components
• Ideal for replacing leaking, clogged, or damaged stock radiators
• Covered by the Mishimoto Lifetime Warranty

If you have questions or want help confirming fitment, call us directly — we’re happy to assist: 512-982-9393 (TX) or 562-981-6800 (CA). We have two service locations in Austin, Texas and the Los Angeles, California area where we offer installation and customization services. If you’re considering purchasing multiple items, contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov