One Stop Solutions HD9161 Radiator

Heavy-Duty Radiator for OE-Style Cooling

The One Stop Solutions HD9161 is a heavy-duty radiator built to match original equipment specifications for dependable engine cooling. It uses a plastic-aluminum construction with a drop-in fit, making it a direct replacement radiator for service work on compatible vehicles.

Designed for applications that need consistent heat transfer and a precise fit, this radiator is engineered for vehicles such as the Chevrolet Avalanche and related GM truck platforms. The HD9161 part number is also referenced in interchange listings for cross-checking during radiator replacement.

Key Features

• Part number: HD9161
• Radiator assembly with plastic-aluminum core material
• Core dimensions: 42-7/8 in. height, 23-1/8 in. width, 2-1/16 in. thickness
• Inlet and outlet diameter: 1-13/16 in. (46 mm)
• Inlet and outlet header length: 24-11/16 in.
• Inlet and outlet header width: 2-7/8 in.
• Header style: CSX4; 4-crimp strips over the tabs
• Built to meet or exceed OE specifications
• State-of-the-art production testing includes cycle, vibration, burst, and environmental checks

Detailed Description

OSC Automotive Products designs this heavy-duty radiator to deliver OE-style fit, form, and function for cooling system replacement. The HD9161 uses a plastic-aluminum core design and is engineered with production testing that checks durability and performance through cycle, vibration, burst, and environmental validation. It is intended for direct replacement service where accurate dimensions and header configuration matter.

For buyers searching for a radiator for Chevrolet Avalanche, GM truck radiator replacement, or HD9161 radiator fitment, this unit provides the dimensional and construction details needed to verify application before installation. Cross-reference part numbers include 5800-29ST and 238716 for application matching.

Common Cooling System Issues It May Address

• Coolant leaks from a damaged or corroded radiator core
• Overheating caused by restricted heat transfer
• Cracked plastic tanks or weakened header areas
• Reduced cooling performance in high-mileage vehicles
• Replacement needs after impact or road debris damage

Installation Notes and Tips

Verify core size, inlet and outlet diameter, and header style before installation. Confirm that the vehicle uses the same radiator configuration and compare the HD9161 dimensions against the original unit to ensure proper alignment with hoses, mounts, and cooling connections. Flush the cooling system and inspect related components such as hoses, clamps, and the thermostat before completing the repair.

Quality Assurance

OSC Automotive Products states that this radiator is engineered to meet or exceed OE specifications and is produced with multiple quality checks during manufacturing. The brand emphasizes consistent quality control and research and development to support reliable heat transfer products.