One Stop Solutions 2551 Radiator

Radiator for GM Trucks and SUVs

One Stop Solutions Part Number 2551 is an OSC Premium new automotive radiator built for direct replacement in select Chevrolet, GMC, and Cadillac applications. It is engineered around OES form and function, with a crossflow design, plastic tanks, and a premium aluminum core for dependable cooling performance.

Compatible With 1995-2000 Chevrolet Tahoe, 1995-2000 GMC Yukon, and select 1996-2000 Chevrolet C/K and GMC C/K trucks, this radiator is designed for vehicles equipped with an engine oil cooler and transmission oil cooler where originally equipped.

Key Features

• Crossflow radiator design with a 34-inch core width and 34-inch core height
• 1-inch core thickness with a single-row core layout
• Premium aluminum core construction with plastic tanks
• Engine oil cooler and transmission oil cooler included
• Plated cooler design for added durability
• Die-cut gasket construction to help maintain a secure seal
• Individually pressure tested during production
• Factory-style fitment for select Chevrolet, GMC, and Cadillac models

Detailed Description

OSC radiator Part Number 2551 is built to match original equipment form and function while addressing common cooling-system wear points. The radiator uses premium-grade materials, including an aluminum core and plated cooler components, and it is engineered for multi-fit applications without changing the intended fit or appearance. The unit also includes the necessary fittings and hardware for installation.

This radiator cross-references APDI 8011522 and Spectra Premium CU1693 for the same application. It is a strong fit for owners searching for a replacement radiator for a 1996-2000 Chevrolet C2500 radiator, 1995-2000 GMC Yukon radiator, or 1999-2000 Cadillac Escalade radiator with oil cooler provisions.

What This Radiator Helps Address

• Overheating caused by a worn or leaking radiator core
• Coolant loss from cracked tanks or failed seals
• Reduced cooling efficiency in high-mileage GM trucks and SUVs
• Transmission heat buildup in vehicles with an integrated transmission oil cooler
• Engine oil cooling concerns on applications originally equipped with an oil cooler

Installation Notes and Tips

Verify core dimensions, inlet and outlet sizes, and cooler line spacing before installation. This radiator measures 34 inches wide by 34 inches high with a 1-inch core thickness, a 1 5/16-inch inlet, and a 1 9/16-inch outlet. It is built for vehicles with the noted oil cooler configuration, so confirm the original equipment layout on your Chevrolet Tahoe, GMC C/K truck, or Cadillac Escalade before replacement.

For best results, inspect hoses, clamps, and cooler lines during installation and flush the cooling system if contamination or debris is present. The radiator does not include a cap.

Quality Assurance

OSC tests the transmission and engine oil coolers before tank installation, checks the core prior to assembly, and tests the completed radiator again after assembly. Each unit is individually pressure tested to help confirm sealing and performance before it leaves production.