Zynrako 34" Engine Coolant Radiator — Direct-Fit for GM 5.3/6.0/6.2 V8, Reinforced Headers

The Zynrako CU2370 is a 34-inch direct-fit engine coolant radiator engineered to replace OEM GM radiators for many Chevrolet, GMC, Cadillac and Hummer V8 trucks and SUVs from the late 1990s through 2014.

This heavy-duty replacement radiator is built to restore cooling system performance on 5.3L, 6.0L and 6.2L GM engines, matching factory dimensions and multiple OE part numbers so installation is straightforward and reliable. Zynrako combines reinforced headers, B-type tube reinforcement and thermal expansion features to resist leaks and improve long-term durability in towing and daily-driving conditions.

Which vehicles will this radiator fit and how do I confirm fitment?

The CU2370 is designed for wide GM coverage across Chevy Silverado, Suburban, Tahoe, Avalanche; GMC Sierra and Yukon; Cadillac Escalade lines; plus some Hummer H2 years. It replaces numerous factory part numbers so it serves as a direct OEM-style replacement for original cooling systems on many 1999–2014 models.

• Common fits: Silverado 1500/2500/3500, Suburban, Tahoe, Avalanche, Sierra, Yukon, Escalade, Escalade ESV/EXT, Hummer H2.
• Engine compatibility: 5.3L, 6.0L and 6.2L V8 GM engines for covered years.
• Verify: Use the Amazon Confirmed Fit tool on the product page or provide your VIN for exact compatibility checks.

What construction features make this radiator reliable for towing and heavy use?

Zynrako engineered this radiator with a deep extrusion header and reinforced B-type tubes to reduce the risk of leaks where tubes meet headers — a common failure point under vibration and thermal cycling. Folded fin edges and thermal expansion cuts help the core manage heat and controlled expansion, improving heat transfer and extending service life.

• Deep extrusion header for stronger tube-to-header joints.
• B-type tubes with central reinforcement to withstand pressure and vibration.
• Thermal expansion cuts plus folded fin edges for improved cooling and longevity.

How does this radiator match OEM specifications and installation needs?

The CU2370 is made as a direct replacement for the original equipment and lists multiple OE numbers to ensure correct fit and performance. Multi-fit attachments are included so mounting points align with factory brackets, minimizing modification or aftermarket adjustments during installation.

• Replaces OE numbers including GM3010274, 10387446 and many others for precise matching.
• 34-inch core dimension to match original cooling capacity for specified models.
• Multi-fit attachment design for easier bolt-on installation with factory hardware.

What support and warranty come with the purchase?

Zynrako backs the radiator with a 1-year warranty and dedicated after-sales support to help with fitment questions or installation guidance. For faster resolution, sharing your vehicle VIN with support helps confirm compatibility and speeds up any assistance you need.

• 1-year limited warranty against manufacturing defects.
• Customer support through the Amazon product page for fitment and installation help.
• VIN sharing recommended to ensure exact vehicle match and quicker service.

Who is this for: The Zynrako CU2370 34" radiator is intended for owners and mechanics restoring cooling performance on late-1990s to mid-2010s GM full-size trucks and SUVs — especially vehicles used for towing, heavy loads or high-mileage daily driving that need a robust, OE-compatible replacement. It suits DIY installers confident with radiator swaps as well as professional shops seeking a direct-fit aftermarket option with reinforced construction and manufacturer support.