labwork Engine Oil Pan for Chevy GMC 4.8L/5.3L/6.0L – Direct-Fit Steel Replacement (12579273)

labwork Engine Oil Pan 12579273 is a direct-fit, high-strength steel replacement oil pan engineered to restore leak-free oil containment for select Chevy, GMC and Cadillac 4.8L, 5.3L and 6.0L V8 engines.

If your vehicle is a Chevy Avalanche, Silverado, Tahoe or a compatible GMC/Cadillac model in the early 2000s era, a damaged or corroded oil pan can let contaminants in or allow engine oil to leak. This labwork oil pan is manufactured from durable steel, undergoes quality testing for high-temperature durability and resists deformation and aging. It collects and stores returned lubricating oil, helping maintain proper oil circulation and protecting the engine from debris and oxidation that can occur when an oil pan fails.

Which vehicles and part numbers does this oil pan replace?

This oil pan is designed as a replacement for many GM models from the late 1990s through mid-2000s. It covers several OEM part numbers, making it suitable for a range of trucks and vans that share the 4.8L, 5.3L and 6.0L engine families.

• Direct replacements: Chevy Avalanche 1500 (2002–2006), Silverado 1500 (2001–2006), Silverado HD/2500/3500 (selected years)
• Also fits: Chevy Express 2500 Van (2003–2007), Cadillac Escalade (2002–2006), GMC Savana, Sierra, Yukon variants
• Cross-references: part numbers 12579273, 12560393, 12565683, 12573695, 12577395

How does the labwork pan resist damage and heat?

The pan is fabricated from high-quality steel with a reinforced shell that resists dents, warping and long-term degradation. labwork reports that units undergo multiple quality checks to ensure stable performance under engine heat cycles and road stresses.

• High-strength steel construction for impact and crush resistance
• Designed to withstand normal engine bay temperatures without deforming
• Coating and finish reduce corrosion and extend service life

What functions and benefits can I expect after installing this pan?

Once installed, the oil pan collects the engine's returning lubricating oil, prevents external contaminants from entering the sump and helps minimize oil oxidation and loss. It restores the sealing surface for the oil pan gasket and drain plug, which reduces the chance of leaks.

• Securely stores lubricating oil returned from engine surfaces
• Helps prevent oil leaks and ingress of road debris
• Replaces worn or damaged OEM pans for improved oil containment

What should I check before ordering and installing?

Compatibility is crucial: confirm your vehicle year, model and engine size match the listed applications and part numbers. Verify bolt pattern, drain plug location and any sensor or baffle differences to ensure a proper fit with your oil pickup and gasket.

• Confirm engine displacement: 4.8L, 5.3L or 6.0L V8
• Match one of the listed OEM part numbers to your existing pan
• Inspect for necessary hardware: gasket, bolts and drain plug torque specs

Who is this for: This labwork oil pan is aimed at owners and mechanics of GM full-size trucks, SUVs and vans from roughly 1999–2007 who need a dependable, direct-fit replacement to stop leaks, replace a corroded or damaged pan, or restore a proper oil sump for routine maintenance. It's suited to DIY installers familiar with oil pan replacement and professional shops seeking a robust aftermarket option that matches multiple OEM part numbers. Always verify compatibility with your vehicle before purchasing and replace gaskets and hardware as part of the installation.