Shop with Blessed Performance for the PPE Black Coolant Block Off Plate for your 2001-2024 GM 6.6L LB7/LLY/LBZ/LMM/LML/L5P Duramax diesel. A normal gasket is used on the factory block-off plate, which is prone to leakage with time. This Block-Off Plate is thicker and features a new O-ring for added durability.
Highlights:
- O-Ring Included
- Anodized Black Finish
- Leak-Free O-Ring Seal Design
- CNC-Machined Billet Aluminum