TYC 741 Radiator

Radiator for Chevrolet S10 and GMC S15

TYC 741 is an aluminum radiator with a crossflow design and an integrated transmission oil cooler. It is built for direct replacement service on select Chevrolet S10, GMC S15, Chevrolet S10 Blazer, GMC S15 Jimmy, and GMC Sonoma applications that do not use an engine oil cooler.

Key Features

• Aluminum core construction for efficient heat transfer
• Crossflow layout with 1-row core design
• Transmission oil cooler included with plate-style cooler
• Hose clamp inlet and outlet connections
• Core dimensions: 23.62 in. length, 15.08 in. height, 1.26 in. thickness
• 1.3 in. inlet and outlet diameters
• 34 total tubes with 35 fins per 4 in.
• Fits applications noted without engine oil cooler

Detailed Description

TYC 741 is a replacement radiator engineered around the cooling requirements of older GM compact trucks and SUVs. The aluminum core, crossflow flow configuration, and plate-style transmission oil cooler support stable coolant and transmission fluid temperature control in daily driving and stop-and-go use. This part cross-references Spectra Premium CU741 for the same application.

Compatible With 1982-1993 Chevrolet S10, 1983-1989 Chevrolet S10 Blazer, 1982-1990 GMC S15, 1983-1989 GMC S15 Jimmy, and 1991-1993 GMC Sonoma, all with notes for w/o Engine Oil Cooler. TYC 741 is a direct-fit radiator choice for owners searching for a radiator for Chevrolet S10 1982-1993 or a replacement radiator for GMC S15 and Sonoma models.

What This Radiator Helps Address

• Overheating caused by a worn or restricted radiator core
• Transmission fluid temperature rise in vehicles with an integrated cooler
• Coolant leaks from aging tanks, seams, or tube damage
• Reduced cooling efficiency from corroded or clogged internal passages
• Temperature instability during towing, commuting, or idle-heavy driving

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and the note w/o Engine Oil Cooler before ordering. Confirm hose clamp connection sizing, inlet and outlet diameters, and transmission cooler line routing against the original radiator. Flush the cooling system, inspect hoses and clamps, and replace any worn seals or mounts during installation.

Quality Assurance

TYC replacement cooling components are built to match OE-style fitment and service requirements for the listed applications. Part number 741 is specified for select Chevrolet S10 and GMC S15-family vehicles with the listed configuration.