One Stop Solutions 1523 Radiator

Radiator for GM Diesel Applications

One Stop Solutions 1523 is an OSC Premium new automotive radiator built for OE-style form and function. It is engineered for select Chevrolet and GMC trucks and SUVs from 1994-2000, including diesel applications in C/K-series models, Suburban, Tahoe, Blazer, and Yukon coverage where listed.

This radiator uses premium-grade aluminum construction with plastic tanks and a crossflow design. The core measures 34 1/8 inches high by 19 7/16 inches wide, with a 2-3/16 inch core thickness and 2-row core layout. The unit includes a plated transmission oil cooler, while the engine oil cooler is not included.

• OE-style radiator design for direct replacement service
• Crossflow configuration with 2-row core construction
• Plastic tank and PA core material construction
• Plated transmission oil cooler included
• Die-cut gasket design to help reduce leak points
• Individually pressure tested during production
• Multi-fit engineering for select Chevrolet and GMC diesel truck and SUV applications

Detailed Product Overview

Part number 1523 is built to match original cooler design requirements where equipped, with fitted and torqued components assembled to factory specifications. OSC uses engineering updates aimed at improving cooling performance and service life, including enhanced fin density and a thicker core design where needed. For buyers searching for a Chevrolet C2500 radiator, GMC K3500 radiator, or a radiator for a 1995-1999 Chevrolet Tahoe diesel, this unit provides a direct-fit replacement option with the correct cooler layout for listed applications. This part cross-references Spectra Premium CU1523 for the same application.

Common Problems This Radiator Can Address

• Coolant leaks from a worn or damaged radiator tank or core
• Overheating caused by reduced heat transfer efficiency
• Transmission fluid temperature concerns when the cooler circuit is failing
• Corrosion or internal wear in an aging factory radiator
• Poor fitment from previous repair parts that do not match OE dimensions

Installation Notes and Tips

Verify core dimensions, inlet and outlet sizes, and transmission cooler spacing before installation. This radiator is a crossflow unit with 1 13/16 inch inlet and outlet diameters, 20 11/16 inch header lengths, and 3 1/8 inch header widths. Cap is not included. Confirm vehicle-specific cooling and transmission cooler connections on 1994-2000 Chevrolet and GMC applications before final assembly.

Quality Assurance

OSC tests the transmission and engine oil coolers before tank installation, checks the radiator core prior to assembly, and tests the completed unit again after assembly. The radiator is also individually pressure tested during production to verify sealing and cooler integrity.

Compatible Vehicles

• Fits 1999-2000 Chevrolet C2500, N/A
• Fits 1999-2000 Chevrolet C3500, N/A
• Fits 1999-2000 Chevrolet K2500, N/A
• Fits 1999-2000 Chevrolet K3500, N/A
• Fits 1999-2000 GMC C2500, N/A
• Fits 1999-2000 GMC C3500, N/A
• Fits 1999-2000 GMC K2500, N/A
• Fits 1999-2000 GMC K3500, N/A
• Fits 1995-1999 Chevrolet C1500 Suburban, N/A, DIESEL
• Fits 1994-1999 Chevrolet C2500 Suburban, N/A, DIESEL
• Fits 1995-1999 Chevrolet K1500 Suburban, N/A, DIESEL
• Fits 1994-1999 Chevrolet K2500 Suburban, N/A, DIESEL
• Fits 1995-1999 Chevrolet Tahoe, N/A
• Fits 1995-1999 GMC C1500 Suburban, N/A, DIESEL
• Fits 1999 GMC C2500 Suburban, N/A
• Fits 1995-1999 GMC K1500 Suburban, N/A, DIESEL
• Fits 1994-1999 GMC K2500 Suburban, N/A, DIESEL
• Fits 1994-1998 Chevrolet C1500, N/A, DIESEL
• Fits 1994-1998 Chevrolet C2500, N/A, DIESEL
• Fits 1994-1998 Chevrolet C3500, N/A, DIESEL
• Fits 1994-1998 Chevrolet K1500, N/A, DIESEL
• Fits 1994-1998 Chevrolet K2500, N/A, DIESEL
• Fits 1994-1998 Chevrolet K3500, N/A, DIESEL
• Fits 1994-1998 GMC C2500, N/A, DIESEL
• Fits 1994-1998 GMC C2500 Suburban, N/A, DIESEL
• Fits 1994-1998 GMC C3500, N/A, DIESEL
• Fits 1994-1998 GMC K1500, N/A, DIESEL
• Fits 1994-1998 GMC K2500, N/A, DIESEL
• Fits 1994-1998 GMC K3500, N/A, DIESEL
• Fits 1994-1997 GMC C1500, N/A, DIESEL
• Fits 1994-1997 GMC Yukon, N/A
• Fits 1994 Chevrolet Blazer, N/A