SKU: C14208-071 | UPC: 191070590314
Cometic Gasket 2019+ BMW/2020+ Toyota B58TU Gen 2 .071in DST Cyl. Head Gasket - 83mm Bore
The Cometic C14208-071 is a multi-layer steel cylinder head gasket engineered for 2019+ BMW models equipped with the B58TU Gen 2 engine and 2020+ Toyota GR Supra. This .071in thick DST gasket with 83mm bore provides strong clamping force to handle elevated boost and compression levels in performance builds. It maintains integrity across extreme temperatures and pressures for consistent engine operation.
Key Features
- Multi-Layer Steel Construction: Three stainless steel layers with a nitrile fiber core resist blowout and deliver consistent sealing under high cylinder pressures.
- 83mm Bore Size: Precisely matched to B58TU Gen 2 cylinder dimensions for stock rebuilds or mild overbore applications without trimming.
- .071in Thickness: Reduces combustion chamber volume for higher compression ratios while supporting turbocharged power increases.
- DST Sealing Technology: Enhanced bead design around cylinders and ports prevents leaks and coolant crossover in demanding conditions.
- PermaTorque Coating: Rubberized layer on outer edges promotes even torque retention and simplifies installation on aluminum heads.
Product Notes
- Confirm B58TU Gen 2 engine code before purchase as it differs from earlier B58 variants.
- Head and block surfaces must be flat within 0.002in for proper sealing.
- Packaged flat in protective envelope to prevent damage during transit.
Installation Notes
- Professional installation recommended.
- Degrease and check mating surfaces for flatness using straight edge and feeler gauge.
- Use OEM torque sequence and values starting at 22 ft-lbs then final to 70 ft-lbs plus angle.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | Toyota | GR Supra | 3.0 Premium |
| 2020-2024 | Toyota | GR Supra | 3.0 Base |
| 2020-2024 | BMW | 3 Series | M340i xDrive |
| 2021-2024 | BMW | 2 Series | M240i xDrive |
| 2021-2024 | BMW | Z4 | M40i |
| 2020-2024 | BMW | X3 | M40i |
| 2020-2024 | BMW | X4 | M40i |
| 2020-2024 | BMW | 4 Series | M440i xDrive |
Why Choose Cometic Gaskets?
- Proven in NHRA and endurance racing with thousands of wins.
- Manufactured in USA with laser-cut precision for exact fit.
- Backed by rigorous testing for boost levels over 40 psi.
Frequently Asked Questions
-
Q: Will this gasket fit a 2022 Toyota GR Supra 3.0?
A: Yes it directly replaces OEM on all 2020-2024 GR Supra models with B58TU Gen 2 engine confirmed by VIN or ECU code. -
Q: What material is used in this head gasket?
A: Three-layer 301 stainless steel with nitrile-reinforced center and PermaTorque edges for heat and pressure resistance up to 1200°F. -
Q: What warranty applies and installation tips?
A: Cometic offers defect warranty. install dry no RTV required torque in stages with ARP studs recommended for boosted setups.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Ships in 14 x 14 x 1 inch Cometic box
- Weight: 1.0 lb
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