A-Premium Engine Cooling Fan Blade 9-Blade 18.50" - Direct-Fit Replacement for Chevrolet GMC Cadillac V6/V8

The A-Premium 9-blade 18.50" engine cooling fan blade is a direct-fit replacement designed to restore airflow for many Chevrolet, GMC and Cadillac V8/V6 trucks and SUVs.

When radiator airflow and engine bay cooling matter, the fan blade is a simple part that makes a big difference. This A-Premium fan blade is made from durable plastic, matches OE blade count and diameter, and covers numerous model years across Silverado, Sierra, Suburban, Tahoe, Yukon, Avalanche and Escalade families. Before ordering, verify your vehicle compatibility and reference numbers to ensure a correct fit.

Which vehicles will this fan blade fit?

This blade fits a broad list of GM trucks and SUVs from late 1990s through mid-2010s. It covers many Silverado and Sierra variants, full-size Suburban/Tahoe/Yukon models, and multiple Escalade versions with 4.3L–6.0L engines. Always confirm your year, model and engine when selecting replacement parts.

• Cadillac Escalade: 2002–2006 variants including ESV and EXT (5.3L/6.0L)
• Chevrolet Silverado & Avalanche: 1999–2007 ranges across 1500/2500/3500 trims
• GMC Sierra & Yukon families: 1999–2013 coverage depending on trim and year
• See product reference numbers 621-104 / 621104 / 15017911 to cross-check fitment

How does the blade’s design affect cooling performance?

The nine-blade layout and 18.50" diameter are engineered to replicate original airflow characteristics for the covered GM engines. Matching blade count and size helps maintain intended fan speed and static pressure so the radiator and A/C condenser receive consistent airflow. Material choice balances rigidity and vibration resistance for long-term service.

• 9 blades for steady, balanced air movement
• 18.50" diameter to match factory flow profile
• durable plastic construction to resist cracking and corrosion
• desgined for direct replacement—no blade trimming or modification

What should I check before installing this replacement blade?

Confirm the part applies to your exact vehicle year, engine code and fan clutch/hub arrangement. Inspect the fan hub, clutch and shroud for wear—replacing the blade alone is useful only if the mounting hardware is sound. Follow manufacturer torque and alignment guidance to avoid vibration after installation.

• enter vehicle details in the listing to verify fitment
• compare to reference numbers 621-104 / 621104 / 15017911
• inspect fan clutch/hub and shroud for damage before mounting
• use proper mounting hardware and torque specifications

What warranty and support come with this A-Premium blade?

A-Premium backs this fan blade with a one-year unlimited-mileage guarantee, giving a safety net against manufacturing defects. Customer support is available for fitment questions and part verification prior to purchase. Keep seller notes and vehicle info handy when contacting support.

• one-year unlimited-mileage guarantee from A-Premium
• customer service for fitment and part questions
• reference numbers and vehicle info recommended when ordering

Who is this for: This replacement fan blade is for owners and technicians who need an exact-fit cooling blade for Chevrolet, GMC or Cadillac models listed above—especially those restoring OEM performance after damage or wear. It's suited for DIY mechanics, professional shops, and fleet maintenance teams seeking a durable, backed replacement for 9-blade/18.50" factory applications.