Onix OR13301 Radiator

Radiator for Heavy-Duty GM Applications

The Onix OR13301 radiator is a direct-fit cooling replacement for select Chevrolet Silverado HD, GMC Sierra HD, and Chevrolet Suburban 1500 applications. Built for 2011-2019 coverage, it supports dependable engine cooling for trucks and SUVs that work under load.

• Drop-in-fit radiator for select GM full-size truck and SUV applications
• Compatible with 2011-2019 Chevrolet Silverado 2500 HD and Silverado 3500 HD
• Compatible with 2011-2019 GMC Sierra 2500 HD and Sierra 3500 HD
• Compatible with 2011-2013 Chevrolet Silverado 3500 and Chevrolet Suburban 1500
• Engineered with quality components for improved service life and consistent cooling performance
• Onix part number OR13301 for easy identification and ordering

Product Details

Onix Automotive designs value-priced cooling components with a focus on fit and durability. The OR13301 radiator is part of the brand’s drop-in-fit radiator line, created for straightforward replacement in supported Chevrolet Silverado HD and GMC Sierra HD platforms. It is also listed for Chevrolet Silverado 3500 and Chevrolet Suburban 1500 applications within the stated model years. If you are searching for an Onix OR13301 radiator for a 2011-2019 Chevrolet Silverado 2500 HD or a 2011-2019 GMC Sierra 3500 HD, this part matches the published fitment data.

Common Problems This Radiator Can Address

• Overheating caused by a worn or leaking radiator
• Coolant loss from cracked or corroded cooling passages
• Reduced cooling efficiency in towing or heavy-duty use
• Temperature instability from an aging factory radiator
• Replacement needs after impact or road debris damage

Installation Notes and Tips

Verify year, make, and model before installation, especially on Chevrolet Silverado 3500 and Chevrolet Suburban 1500 applications where fitment is year-specific. Compare the original radiator to the Onix OR13301 before removal to confirm hose locations, mounting points, and overall dimensions. Flush the cooling system and inspect hoses, clamps, and coolant condition during replacement.

Quality Assurance

Onix positions this radiator line as a premium-quality, drop-in-fit replacement built with top-tier components for longer service life and reliable performance. The brand’s product strategy emphasizes consistent fit and value across its cooling and chassis lines.