Koyorad A1826 Radiator

Koyorad A1826 Radiator for GM Compact Trucks

The Koyorad A1826 radiator is an OE-equivalent replacement built for cooling-system service on select Chevrolet, GMC, Oldsmobile, and Isuzu applications. It combines an aluminum core with plastic tanks and integrated engine and transmission oil coolers for direct-fit replacement needs on vehicles such as the Chevrolet S10, Chevrolet Blazer, and GMC Sonoma.

Key Features

• Aluminum core with 1-row construction for efficient heat transfer
• Plastic tank design for OE-style fitment
• Integrated engine oil cooler included
• Integrated transmission oil cooler included
• Engine oil cooler uses a 4-plate plate-style design
• Transmission oil cooler uses a 4-plate design
• Inlet diameter: 1.3125 in.; outlet diameter: 1.5625 in.
• Core dimensions: 26.25 in. height x 16.3125 in. width x 1 in. thickness

Product Details

Koyorad Radiator A1826 is engineered as a direct replacement radiator for vehicles that require both engine and transmission fluid cooling in one assembly. The core material is aluminum for thermal efficiency, while the tank material is plastic to match common OE construction. Koyorad applies its replacement-radiator manufacturing experience to deliver a part that follows the original cooling layout and connection sizes for straightforward service work. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 1996-2005 Chevrolet Blazer, N/A
• Fits 1996-2005 GMC Jimmy, N/A
• Fits 1994-2004 Chevrolet S10, N/A
• Fits 1996-2004 GMC Sonoma, N/A
• Fits 1996-2001 Oldsmobile Bravada, N/A
• Fits 1997-2000 Isuzu Hombre, N/A
• Fits 1994 Chevrolet S10 Blazer, N/A

Common Cooling Issues This Part Can Address

• Cracked or leaking radiator tanks
• Restricted coolant flow from an aging core
• Transmission fluid temperature control concerns tied to a failing cooler circuit
• Engine oil cooling loss from a damaged internal cooler
• Fitment problems caused by worn or incorrect replacement radiators

Installation Notes and Tips

Verify inlet and outlet hose sizes before installation and confirm that the vehicle uses both internal engine oil cooling and internal transmission oil cooling. Flush the cooling system, inspect hoses and clamps, and check the radiator mounts and fan shroud condition before final assembly. For best results, compare the original radiator dimensions and cooler connections to the Koyorad A1826 before removal.

Quality Assurance

Koyorad positions this radiator line as an OE-equivalent replacement built with the technical knowledge needed for accurate cooling-system service. The A1826 is intended for direct replacement use on the listed Chevrolet S10, GMC Sonoma, Chevrolet Blazer, GMC Jimmy, Oldsmobile Bravada, and Isuzu Hombre applications.