DWVO 34" Radiator for 1999–2013 Silverado 1500 (No EOC) — Direct-Fit Aluminum, TIG-Welded Core

DWVO 34" radiator CU2423 is a direct-fit, high-density aluminum replacement designed to restore reliable cooling on 1999–2013 Silverado 1500 and compatible GM trucks without EOC.

This full-length HTML radiator replaces OEM part 22840117 and equivalent numbers for models equipped with 34" cores. Built with a TIG-welded aluminum core, PA66 GF30 inlet/outlet tanks, and a factory-applied protective coating, the unit is intended as a durable replacement that fits the listed Chevy, GMC, Cadillac and Hummer applications. The package includes the complete radiator and a user manual; professional installation is recommended for best results.

Will this radiator fit my 1999–2013 Silverado 1500 without EOC?

Yes — this DWVO radiator is engineered to match the OEM 34" core dimensions and mounting points used on Silverado 1500 models without the engine oil cooler (EOC). It lists OEM and cross-reference numbers to verify compatibility for an accurate swap.

• Core length: 34 inches to match original equipment sizing
• Compatible engines: 4.3L, 4.8L, 5.3L, 6.0L, 6.2L (as specified)
• Vehicle models: Chevy Silverado/Suburban/Tahoe, Cadillac Escalade/Avalanche, GMC Yukon/Sierra, Hummer H2
• OEM reference: 22840117 and listed replacement numbers for cross-checking

How durable and leak-resistant is this replacement radiator?

The radiator uses a high-density, multi-louvered fin aluminum core and TIG-welded joints for strength and improved thermal performance. PA66 GF30 tanks and a treated exterior coating help resist cold-weather brittleness and corrosion, reducing the risk of leaks under normal operating conditions.

• High-density fins for efficient heat dispersion
• TIG-welded seams to minimize joint failures
• Reinforced inlet/outlet tanks (PA66 GF30) for impact and temperature resistance
• Protective coating to reduce corrosion over time

What comes in the box and what installation steps should I expect?

The shipment contains one DWVO complete radiator and a user manual; note the radiator cap is not included. Foam padding secures the radiator in four corners to prevent shipping damage — mounting hardware may be reused from the original unit, and professional fitment is recommended for proper hose, fan, and transmission cooler line connections.

• Included: DWVO complete radiator, user manual, fixed foam supports
• Not included: radiator cap, vehicle-specific brackets or hoses
• Recommended: inspect hoses and clamps; bleed system per manufacturer guidelines
• Tip: have transmission cooler lines and fan assembly reinstalled by a technician

How does this radiator help with everyday driving and towing demands?

The aluminum core and multi-louvered fins improve heat transfer under steady highway loads and stop-and-go traffic, helping maintain stable coolant temperatures. While performance depends on the vehicle’s overall cooling system condition, the radiator’s construction is aimed at reliable thermal management during routine use and light towing within the vehicle’s rated capacity.

• Efficient heat exchange for highway and urban driving
• Better airflow through multi-louvered fins for sustained cooling
• Compatible with factory transmission oil cooler for automatic models
• Durable finish helps resist environmental wear

Who is this for: This DWVO 34" CU2423 radiator is intended for owners of 1999–2013 Chevrolet Silverado 1500 and other compatible GM trucks who need a direct-fit, OEM-referenced replacement. It's ideal for mechanics, DIY enthusiasts with mechanical experience, and fleet operators seeking a durable aluminum radiator to restore cooling reliability. If you're unsure about fitment or lack installation experience, consult a professional technician to confirm compatibility and complete the replacement.