2004.5-2010 GM 6.6L DURAMAX LLY LBZ UPPER VALVE COVER GASKET DT660016
Prevent oil leaks and ensure a proper seal on your Duramax engine with this Upper Valve Cover Gasket for 2004.5–2010 GM 6.6L Duramax LLY and LBZ engines. This direct-fit replacement gasket (Part #: DT660016) is designed to maintain a tight, leak-free seal between the upper valve cover and the cylinder head—essential for proper crankcase pressure and oil management.
Crafted from high-quality, heat-resistant material, this gasket is built to endure the high operating temperatures of diesel engines, offering long-lasting reliability and performance.
What’s Included in the Kit:
- 1 × Upper Valve Cover Gasket (DT660016)
Features & Benefits:
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Direct OE-Style Replacement: Fits and performs like factory original
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Prevents Oil Leaks: Ensures a leak-free seal between the valve cover and cylinder head
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Durable Construction: Made from premium heat- and oil-resistant materials
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Easy Installation: No modifications required—replaces OEM gasket with precision
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Essential Maintenance Part: Recommended for valve cover removal or injector service
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Compatible with Stock & Modified Trucks: Great for both daily drivers and performance builds
Compatibility:
Fits the following GM/Chevy Duramax 6.6L diesel applications:
• 2004.5–2005 Chevrolet Silverado / GMC Sierra 2500HD & 3500 (LLY)
• 2006–2007 Chevrolet Silverado / GMC Sierra 2500HD & 3500 (LBZ)
• 2006–2010 GM Top Kick / Chevy Kodiak 6.6L Duramax (LLY & LBZ equipped models)
Installation Note:
Always clean the valve cover surface thoroughly before gasket installation. Torque valve cover bolts to factory specifications in sequence to ensure a proper seal.
Shipping Disclaimer:
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✔️ Expedited shipping options available, call to check freight options
✔️ Orders are processed within 1 business day (Monday–Friday).
✔️ Orders placed on weekends or holidays will be processed on the next business day.
✔️ Tracking information will be provided once the item ships.
✔️ Shipping to PO Boxes, APO/FPO may be limited based on carrier restrictions.
California Proposition 65 Warning:
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Reference #'s DT660016,97312341,522-036
