HomeEngine > Gaskets and Sealing SystemsApex ATC3930 Engine Timing Cover Gasket Set
Part #: ATC3930

Apex ATC3930 Engine Timing Cover Gasket Set

⚙️ 49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Avalanche 2500, Express 3500, Savana 3500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, Suburban 2500, and Yukon XL 2500
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Reliable Engine Timing Cover Gasket Set for Chevrolet and GMC

The Apex ATC3930 Engine Timing Cover Gasket Set is designed for precise sealing and durability in heavy-duty Chevrolet and GMC vehicles. This gasket set ensures a secure fit for models such as the Silverado 2500 HD and Sierra 3500 Classic, maintaining engine integrity under demanding conditions.

  • Compatible with Chevrolet and GMC heavy-duty trucks and vans
  • Engine timing cover gasket set designed for optimal sealing performance
  • Part number ATC3930 for easy identification and replacement
  • Suitable for models including Avalanche 2500, Express 3500, and Yukon XL 2500
  • Engineered to withstand high temperatures and pressure typical of 2500 and 3500 series vehicles

Durable Gasket Set for Heavy-Duty Chevrolet and GMC Engines

The Apex ATC3930 gasket set is engineered to provide a reliable seal for the engine timing cover on Chevrolet and GMC trucks and vans. This set is compatible with a range of 2500 and 3500 series models, including the Silverado, Sierra, Avalanche, Express, Savana, Suburban, and Yukon XL. Designed to resist oil leaks and maintain engine performance, the gasket set supports the longevity of your vehicle’s engine by preventing contamination and fluid loss. The precise fitment reduces the risk of gasket failure, which is critical for maintaining proper engine timing and operation.

Applications and Common Issues Addressed

  • Prevents oil leaks around the engine timing cover
  • Eliminates engine contamination from external debris
  • Maintains proper engine timing by ensuring a secure seal
  • Addresses gasket wear and deterioration in Chevrolet and GMC 2500/3500 series vehicles
  • Helps avoid costly engine repairs due to seal failure

Installation Notes and Tips

When installing the Apex ATC3930 gasket set, ensure the engine timing cover surface is clean and free of old gasket material or debris. Proper torque specifications should be followed to avoid over-tightening, which can damage the gasket. It is recommended to inspect the timing cover and surrounding components for wear or damage during installation. Using the correct part number ATC3930 guarantees compatibility with Chevrolet Avalanche 2500, GMC Sierra 3500 Classic, and other specified models.

Quality Assurance and Warranty

Apex manufactures the ATC3930 gasket set to meet industry standards for durability and performance. While specific warranty details are not provided, Apex products typically undergo quality control to ensure reliable sealing and fitment. Using this gasket set helps maintain engine integrity and supports the operational lifespan of Chevrolet and GMC heavy-duty vehicles.

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007ChevroletSilverado 2500 HD Classic8.1LV8N/A
2007ChevroletSilverado 3500 Classic8.1LV8N/A
2007GMCSierra 2500 HD Classic8.1LV8N/A
2007GMCSierra 3500 Classic8.1LV8N/A
2006ChevroletAvalanche 25008.1LV8N/A
2006ChevroletSilverado 2500 HD8.1LV8N/A
2006ChevroletSilverado 35008.1LV8N/A
2006ChevroletSuburban 25008.1LV8N/A
2006GMCSierra 2500 HD8.1LV8N/A
2006GMCSierra 35008.1LV8N/A
2006GMCYukon XL 25008.1LV8N/A
2005ChevroletAvalanche 25008.1LV8N/A
2005ChevroletSilverado 2500 HD8.1LV8N/A
2005ChevroletSilverado 35008.1LV8N/A
2005ChevroletSuburban 25008.1LV8N/A
2005GMCSierra 2500 HD8.1LV8N/A
2005GMCSierra 35008.1LV8N/A
2005GMCYukon XL 25008.1LV8N/A
2004ChevroletAvalanche 25008.1LV8N/A
2004ChevroletSilverado 2500 HD8.1LV8N/A
2004ChevroletSilverado 35008.1LV8N/A
2004ChevroletSuburban 25008.1LV8N/A
2004GMCSierra 2500 HD8.1LV8N/A
2004GMCSierra 35008.1LV8N/A
2004GMCYukon XL 25008.1LV8N/A
2003ChevroletAvalanche 25008.1LV8N/A
2003ChevroletSilverado 2500 HD8.1LV8N/A
2003ChevroletSilverado 35008.1LV8N/A
2003ChevroletSuburban 25008.1LV8N/A
2003GMCSierra 2500 HD8.1LV8N/A
2003GMCSierra 35008.1LV8N/A
2003GMCYukon XL 25008.1LV8N/A
2002ChevroletAvalanche 25008.1LV8N/A
2002ChevroletExpress 35008.1LV8N/A
2002ChevroletSilverado 2500 HD8.1LV8N/A
2002ChevroletSilverado 35008.1LV8N/A
2002ChevroletSuburban 25008.1LV8N/A
2002GMCSavana 35008.1LV8N/A
2002GMCSierra 2500 HD8.1LV8N/A
2002GMCSierra 35008.1LV8N/A
2002GMCYukon XL 25008.1LV8N/A
2001ChevroletExpress 35008.1LV8N/A
2001ChevroletSilverado 2500 HD8.1LV8N/A
2001ChevroletSilverado 35008.1LV8N/A
2001ChevroletSuburban 25008.1LV8N/A
2001GMCSavana 35008.1LV8N/A
2001GMCSierra 2500 HD8.1LV8N/A
2001GMCSierra 35008.1LV8N/A
2001GMCYukon XL 25008.1LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.