Fits: 2001 thru 2024 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML/L5P Duramax Diesel

Upgrade your rear engine cover and stop the coolant leaks for good!

Fleece Performance's blocking plate is thicker than the stock plate and has an integral square cut O-ring with no gasket required. OE covers are prone to leakage over time, our billet coolant block off plate with an integral O-ring is an upgrade for your rear engine cover and will the stop the coolant leaks for good.

Features: 

• Thicker Than Stock
• Integral Square Cut O-Ring With No Gasket Required
• Stops Future Coolant Leaks
• 1 Year Limited Parts Warranty

Includes: 

• Coolant Blockoff Plate
• Necessary Hardware

Notes: 

• Replaces GM Part# 97941204