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HKS 23002-AT005 Metal Head Gasket Fa24 T=1.2 Grommet Type
The HKS 23002-AT005 metal head gasket is a 1.2 mm grommet-type gasket for the Subaru FA24 engine in the 2022-2025 Toyota GR86 (ZN8) and Subaru BRZ (ZD8), yielding an 11.3 compression ratio when paired with an HKS FA24 2.5L High Comp piston kit versus the 0.6 mm factory gasket.
Key Features
- Genuine HKS part number 23002-AT005
- Gasket thickness: 1.2 mm
- Bore: Φ95
- Compression ratio: 11.3, when using the HKS Piston Full Kit FA24 2.5L HIGH COMP STEP 1 or 2
- OEM thickness: 0.6 mm
Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2025 | Toyota | GR86 | ZN8 |
| 2022-2025 | Subaru | BRZ | ZD8 |
Specifications
| Detail | Value |
|---|---|
| Gasket thickness | 1.2 mm |
| Bore | Φ95 |
| Compression ratio | 11.3, when using the HKS Piston Full Kit FA24 2.5L HIGH COMP STEP 1 or 2 |
| OEM thickness | 0.6 mm |
| Gasket type | Grommet type |
| Construction feature | Grommet structure to secure surface pressure of the gasket sealing surface |
| Package dimensions | 260 × 505 × 505 mm |
| Package weight | 0.7 kg |
| Package Dimensions/Weight | 260 × 505 × 505 mm, 0.7 kg |
What's Included
- 1x HKS 23002-AT005 Head Gasket, quantity 1
About HKS
HKS is a Japanese performance engineering company founded in 1973, known for turbocharger systems, the Hipermax coilover line, SSQV blow-off valves, and precision-engineered engine, suspension, and exhaust components developed and tested on JDM and global performance platforms.
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FAQ
What vehicles does this head gasket fit
Check the fitment table for the exact year, make, model, and chassis this part covers before ordering.
Is this a genuine HKS part
Yes, this is a genuine HKS part sourced through authorized HKS distribution channels.
What is included in the box
The What's Included section above lists the exact contents and quantities that ship with this part.
Does this part require professional installation
Some HKS parts require professional installation, fabrication, or specialized tools. Review the Installation Instructions section for this part before starting the job.
What is the HKS warranty on this part
HKS provides a one year warranty to the original purchaser against defects in materials and workmanship. Purchasing through an unauthorized seller can void this warranty.
Is this part covered for emissions or CARB compliance
Check current emissions regulations in your area before installing this part on an emissions controlled vehicle.
Can I return this part if it does not fit my vehicle
Confirm fitment against the table above before ordering. Standard return policy applies to unused, unmodified parts in original packaging.
Where is this part manufactured
HKS parts are engineered and manufactured under HKS's Japan based quality standards for performance automotive applications.
Installation Instructions
- Confirm the part in hand is stamped or labeled with HKS part number 23002-AT005 before installing.
- Confirm your vehicle matches the verified fitment listed above for this head gasket.
- Review the HKS installation documentation for this part number before beginning work.
- Use proper tools and safety equipment. Some HKS parts require professional installation.
- Install the part following HKS's documented procedure for this application.
- Torque all fasteners to manufacturer specification.
- Double-check the installation and test the vehicle in a controlled, safe environment before normal use.
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