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Cometic Gasket Cometic Gasket 2019+ BMW/2020+ Toyota B58TU Gen 2 .063in DST Cyl. Head Gasket - 83mm Bore
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Cometic Gasket 2019+ BMW/2020+ Toyota B58TU Gen 2 .063in DST Cyl. Head Gasket - 83mm Bore

CGSC14208-063
191070590307
Head Gaskets
2 Units In Stock - Ships Next Business Day
$ 302.17 $ 271.95
$ 271.95

SKU: C14208-063 | UPC: 191070590307

Cometic Gasket 2019+ BMW/2020+ Toyota B58TU Gen 2 .063in DST Cyl. Head Gasket - 83mm Bore

This Cometic cylinder head gasket delivers precise sealing for 2019 and later BMW models and 2020 and later Toyota GR Supra with B58TU Gen 2 engines modified to 83mm bore. The .063-inch thickness supports custom compression ratios in high-performance builds. It withstands extreme boost pressures and temperatures for dependable operation.

Key Features

  • Multi-Layer Steel Construction: Stainless steel core layers with wire-arc sprayed coating resist blowout and maintain seal integrity under high cylinder pressures
  • .063in Thickness: Provides exact deck clearance control for tuned engines targeting specific compression heights and ratios
  • 83mm Bore Diameter: Matches enlarged cylinder bores in stroker kits and performance piston setups for leak-free combustion sealing
  • DST Sealing Technology: Proprietary design enhances surface conformability and pressure distribution for consistent performance
  • Full Fire Ring: Contains combustion gases effectively preventing blow-by in turbocharged 3.0L applications

Product Notes

  • Intended for 83mm bore engines only verify cylinder dimensions prior to use
  • Pre-flattened for immediate installation no resurfacing required
  • Packaged flat to prevent distortion during shipping

Installation Notes

  • Professional installation recommended.
  • Clean deck surfaces thoroughly and use OEM or ARP head studs with specified torque sequence.
  • Compatible with factory head bolts reuse only if undamaged.

This Part Fits

Year Make Model Submodel
2020-2024 Toyota GR Supra 3.0L Turbo B58
2019-2024 BMW 3 Series 330i xDrive G20/G21
2020-2024 BMW 5 Series 540i xDrive G30
2019-2024 BMW X3 xDrive30i G01
2020-2024 BMW X4 xDrive30i G02
2019-2024 BMW X5 xDrive40i G05
2020-2024 BMW X6 xDrive40i G06
2019-2024 BMW X7 xDrive40i G07
2019-2024 BMW Z4 M40i G29
2022-2024 BMW 2 Series M240i xDrive G42

Why Choose Cometic?

  • Three decades of gasket innovation for motorsports and street performance
  • Manufactured in USA with tight tolerances for OEM-like fit
  • Proven in high-horsepower B58 builds worldwide

Frequently Asked Questions

  • Q: Will this gasket fit stock bore B58TU engines?
    A: No it is sized for 83mm bores only stock is typically 82mm confirm your build specs
  • Q: What materials are used in construction?
    A: Multi-layer 301 stainless steel with silicone rubber beading and sputter-coated fire ring for heat and pressure resistance
  • Q: What is the warranty coverage?
    A: Cometic provides a limited lifetime warranty against manufacturing defects when installed correctly

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Flat protective envelope 11 x 11 x 0.5 inches
  • Weight: 0.35 lbs

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