Description
Cometic B58 Head gasket a high-performance Multi-Layer Xtreme (MLX) Cylinder Head Gasketmanufactured by Cometic Gasket, primarily designed for the Toyota BMW B58/B58H engine found in the 2020+ Toyota GR Supra and various BMW models.
Key Specifications
· Engine Compatibility: Toyota BMW B58/B58H (3.0L Turbo Inline-6).
· Bore Size: 83mm.
· Compressed Thickness: 0.036 inches (0.914 mm).
· Material: Multi-Layer Xtreme (MLX) / Stainless Steel.
· Number of Layers: 3.
Performance Features
· MLX Technology: Features an integrated “stopper” fold-over layer that provides a torque-limiting surface to prevent the yielding of combustion seals.
· Superior Sealing: Embossed outer layers are coated on both sides with Viton (a heat-resistant fluoroelastomer), providing a micro-seal for fluids against the cylinder head and block surfaces up to 482°F (250°C).
· Durability: The multi-layer stainless steel construction is designed for high-output engines, offering excellent rebound and resistance to corrosion.
· Versatility: Ideal for sealing both aluminum-to-aluminum and aluminum-to-cast iron interfaces, effectively handling the shearing forces created by different materials.
Common Applications
· 2020–2025 Toyota GR Supra (A90/A91).
· BMW B58 M240/340/440
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