Aspaton Upper Radiator Hose 15792821 — Direct-Fit for 2000–2007 GM V8s, 5/8" Fitting

Aspaton 15792821 is a direct-fit upper radiator hose engineered to replace worn or cracked hoses on GM 2000–2007 V8 trucks and SUVs.

This replacement radiator hose is molded to match OE contours and connection points for a precise fit on compatible Chevrolet, GMC and Cadillac models. Made to restore coolant flow and engine bay routing, the hose is manufactured to meet fitment and durability expectations for older V8 powertrains. Before purchase, verify the 5/8-inch fitting size and your vehicle’s model year and engine to ensure correct compatibility.

Which vehicles and engines will this Aspaton hose fit?

The Aspaton 15792821 hose is designed for a wide range of GM trucks and SUVs built between 2000 and 2007 with various V8 engines. It covers many Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Escalade and H2 model/engine combinations. Check the specific model list below against your VIN or service parts manual to confirm fitment.

• Silverado 1500 (2001–2007): 4.8L / 5.3L / 6.0L V8
• Silverado 2500 (2000–2007): 5.3L / 6.0L V8
• Tahoe (2000–2007): 4.8L / 5.3L / 6.2L V8
• Sierra, Yukon, Suburban, Avalanche, Escalade and H2 models across 2000–2007 V8 applications

How does this replacement hose match the original part?

This hose replaces OEM part numbers such as 15792821 and aftermarket cross-references including 22554 and 626-553, ensuring the correct routing and connection geometry. Molded ends, bend radii and fitting diameter mirror factory specifications to minimize installation adjustments. Using a direct-fit hose reduces the need for trimming or custom clamps.

• Replaces part numbers: 15792821, 22554, 88412, 626-553, 626553
• Pre-shaped to factory routing for straightforward installation
• 5/8" hose fitting—verify against your vehicle’s existing fitting before ordering

What materials and durability features are included?

Aspaton builds this hose to withstand typical underhood conditions including heat cycles and coolant exposure. The compound and reinforcement are selected to resist swelling, cracking and softening over time compared with aged OEM rubber. While not a lifetime component, it meets common replacement standards for long-term service life when installed and used as intended.

• Heat- and coolant-resistant construction for engine bay conditions
• Reinforced design to maintain shape and prevent collapse under vacuum
• Manufactured to match OEM dimensions for proper sealing

How do I install this hose and what should I check during replacement?

Installation follows standard coolant hose replacement steps: drain coolant, remove clamps, swap the hose and refill with proper coolant mixture. Inspect mating surfaces, clamps and adjacent hoses while the system is open to avoid future leaks. Torque or secure clamps to manufacturer guidance and air the cooling system to prevent overheating.

• Drain coolant to below hose connection before removal
• Replace or reuse OEM clamps only if in good condition
• Refill and bleed the cooling system per factory procedure

Who is this for: This Aspaton radiator hose suits DIY mechanics, independent shop technicians and fleet managers restoring cooling systems on Chevy, GMC and Cadillac full-size trucks and SUVs from model years 2000–2007. Ideal for owners needing a reliable, direct-fit replacement with known cross-reference numbers and for anyone verifying a 5/8" fitting size prior to purchase.