DJ Rock HBK710 Engine Cylinder Head Bolt Set
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DJ Rock

DJ Rock HBK710 Engine Cylinder Head Bolt Set

Brand DJ Rock HBK710
Fits Subaru and Saab · 117 vehicles

Cylinder head bolt kit. Precision-engineered to secure the head and maintain a proper seal.

Heat-treated steel. Built for strength, fatigue resistance, and stability under stress.

OEM quality standards. Manufactured to meet or exceed original equipment requirements.

Cross-references MAHLE GS33419, Stant 27187 and ES72905 for the same application. See all 3.

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Premium Cylinder Head Bolt Set for Subaru and Toyota

DJ Rock HBK710 is a premium engine cylinder head bolt set built for secure cylinder head retention under high heat and repeated thermal cycling. It is a direct-fit hardware solution for Subaru, Scion, and Toyota applications that require accurate torque and stable clamping force.

Compatible With 1996-2022 Subaru Legacy, Forester, Outback, Impreza, Crosstrek, WRX, Baja, and XV Crosstrek, plus 2013-2020 Subaru BRZ, 2013-2016 Scion FR-S, and 2017-2020 Toyota 86. This part number, HBK710, is also referenced for related engine repair applications.

Key Features

  • Premium-grade cylinder head bolt set for engine rebuild and head gasket service
  • Heat-treated carbon or alloy steel construction for strength and fatigue resistance
  • Engineered for consistent clamping force and accurate torque application
  • Built to meet or exceed OEM quality standards
  • Suitable for Subaru EJ-series and related boxer engine applications listed in fitment
  • This part cross-references MAHLE GS33419 for the same application.

Detailed Description

DJ Rock HBK710 is designed to secure the cylinder head to the engine block and maintain sealing integrity under pressure and temperature changes. The hardware is manufactured from durable, heat-treated steel to help preserve torque retention during engine operation. For Subaru Legacy, Forester, Outback, Impreza, and BRZ service work, HBK710 supports the precision required during cylinder head installation and top-end engine repair.

Use HBK710 when replacing worn or torque-stretched head bolts during head gasket service, engine teardown, or rebuild work on Subaru, Scion FR-S, and Toyota 86 platforms. The fitment coverage includes 1996-2022 Subaru Legacy, 2004-2022 Subaru Forester, 2005-2022 Subaru Outback, 2002-2022 Subaru Impreza, 2011-2022 Subaru Crosstrek, 2015-2021 Subaru WRX, 2013-2020 Subaru BRZ, 2013-2016 Scion FR-S, and 2017-2020 Toyota 86.

What It Helps Fix

  • Head gasket sealing issues caused by stretched or fatigued head bolts
  • Loss of clamping force after cylinder head removal
  • Uneven torque retention during engine heat cycling
  • Hardware wear found during Subaru boxer engine rebuilds
  • Repeat repairs when old head bolts are no longer serviceable

Installation Notes and Tips

Follow the factory torque sequence and torque specifications for the exact engine code. Clean the block and cylinder head mating surfaces before installation, and verify thread condition in the engine block. If the original application uses torque-to-yield fasteners, do not reuse removed bolts.

Quality Assurance

HBK710 is manufactured to meet or exceed OEM quality standards and uses durable, heat-treated steel for stable performance under thermal and mechanical stress. It is a premium-grade engine hardware replacement for professional repair and rebuild work.

This part fits 117 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2022SubaruCrosstrek—2.5LH4—N/A—
2022SubaruForester—2.5LH4—N/A—
2022SubaruLegacy—2.5LH4—N/A—
2022SubaruOutback—2.5LH4—N/A—
2021SubaruCrosstrek—2.0LH4—N/A—
2021SubaruForester—2.5LH4—N/A—
2021SubaruImpreza—2.0LH4—N/A—
2021SubaruLegacy—2.5LH4—N/A—
2021SubaruOutback—2.5LH4—N/A—
2021SubaruWRX—2.0LH4—N/A—
2020SubaruBRZ—2.0LH4—N/A—
2020SubaruCrosstrek—2.0LH4—N/A—
2020SubaruForester—2.5LH4—N/A—
2020SubaruImpreza—2.0LH4—N/A—
2020SubaruLegacy—2.5LH4—N/A—
2020SubaruOutback—2.5LH4—N/A—
2020SubaruWRX—2.0LH4—N/A—
2020Toyota86—2.0LH4—N/A—
2019SubaruBRZ—2.0LH4—N/A—
2019SubaruCrosstrek—2.0LH4—N/A—
2019SubaruForester—2.5LH4—N/A—
2019SubaruImpreza—2.0LH4—N/A—
2019SubaruLegacy—2.5LH4—N/A—
2019SubaruOutback—2.5LH4—N/A—
2019SubaruWRX—2.0LH4—N/A—
2019Toyota86—2.0LH4—N/A—
2018SubaruBRZ—2.0LH4—N/A—
2018SubaruForester—2.0LH4—N/A—
2018SubaruImpreza—2.0LH4—N/A—
2018SubaruLegacy—2.5LH4—N/A—
2018SubaruOutback—2.5LH4—N/A—
2018SubaruWRX—2.0LH4—N/A—
2018Toyota86—2.0LH4—N/A—
2017SubaruBRZ—2.0LH4—N/A—
2017SubaruCrosstrek—2.0LH4GASN/A—
2017SubaruForester—2.0LH4—N/A—
2017SubaruImpreza—2.0LH4—N/A—
2017SubaruLegacy—2.5LH4—N/A—
2017SubaruOutback—2.5LH4—N/A—
2017SubaruWRX—2.0LH4—N/A—
2017Toyota86—2.0LH4—N/A—
2016ScionFR-S—2.0LH4—N/A—
2016SubaruBRZ—2.0LH4—N/A—
2016SubaruCrosstrek—2.0LH4FULL HYBRID EV-GAS (FHEV)N/A—
2016SubaruForester—2.0LH4—N/A—
2016SubaruImpreza—2.0LH4—N/A—
2016SubaruLegacy—2.5LH4—N/A—
2016SubaruOutback—2.5LH4—N/A—
2016SubaruWRX—2.0LH4—N/A—
2015ScionFR-S—2.0LH4—N/A—
2015SubaruBRZ—2.0LH4—N/A—
2015SubaruForester—2.0LH4—N/A—
2015SubaruImpreza—2.0LH4—N/A—
2015SubaruLegacy—2.5LH4—N/A—
2015SubaruOutback—2.5LH4—N/A—
2015SubaruWRX—2.0LH4—N/A—
2015SubaruXV Crosstrek—2.0LH4FULL HYBRID EV-GAS (FHEV)N/A—
2014ScionFR-S—2.0LH4—N/A—
2014SubaruBRZ—2.0LH4—N/A—
2014SubaruForester—2.0LH4—N/A—
2014SubaruImpreza—2.0LH4—N/A—
2014SubaruLegacy—2.5LH4—N/A—
2014SubaruOutback—2.5LH4—N/A—
2014SubaruXV Crosstrek—2.0LH4FULL HYBRID EV-GAS (FHEV)N/A—
2013ScionFR-S—2.0LH4—N/A—
2013SubaruBRZ—2.0LH4—N/A—
2013SubaruForester—2.5LH4—N/A—
2013SubaruImpreza—2.0LH4—N/A—
2013SubaruLegacy—2.5LH4—N/A—
2013SubaruOutback—2.5LH4—N/A—
2013SubaruXV Crosstrek—2.0LH4GASN/A—
2012SubaruForester—2.5LH4—N/A—
2012SubaruImpreza—2.0LH4—N/A—
2012SubaruLegacy—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2011SubaruForester—2.5LH4—N/A—
2011SubaruLegacy—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2010SubaruLegacy—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2009SubaruForester—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2009SubaruImpreza—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2009SubaruImprezaWRX STI2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2009SubaruLegacy—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2009SubaruOutback—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2008SubaruForester—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2008SubaruImpreza—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2008SubaruImprezaWRX STI2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2008SubaruLegacy—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2008SubaruOutback—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2007SubaruForesterXT Limited2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2007SubaruImprezaWRX STI2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2007SubaruImprezaWRX STI Limited2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2007SubaruLegacy—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2007SubaruOutback—2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2006Saab9-2XAero2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2006SubaruBajaTurbo2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2006SubaruForesterXT Limited2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2006SubaruImprezaWRX STI2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2006SubaruLegacy—2.5LH4—N/A—
2006SubaruOutback—2.5LH4—N/A—
2005Saab9-2XAero2.0LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2005SubaruBajaTurbo2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2005SubaruForester—2.5LH4—N/A—
2005SubaruImprezaWRX2.0LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2005SubaruImprezaWRX STI2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2005SubaruLegacy—2.5LH4—N/A—
2005SubaruOutback—2.5LH4—N/A—
2004SubaruBajaTurbo2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2004SubaruForester—2.5LH4—N/A—
2004SubaruImprezaWRX2.0LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2004SubaruImprezaWRX STI2.5LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2003SubaruImprezaWRX2.0LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
2002SubaruImprezaWRX2.0LH4—N/AEngine Cylinder Head Bolt Set fits and services the entire engine.
1999SubaruLegacy—2.5LH4—N/AEJ25D; One Set Services Complete Engine
1998SubaruForester—2.5LH4—N/AEJ25D; One Set Services Complete Engine
1998SubaruImpreza—2.5LH4—N/AEJ25D; One Set Services Complete Engine
1998SubaruLegacy—2.5LH4—N/AEJ25D; One Set Services Complete Engine
1997SubaruLegacy—2.5LH4—N/AEJ25D; One Set Services Complete Engine
1996SubaruLegacy—2.5LH4—N/AEJ25D; One Set Services Complete Engine
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
MAHLE — GS33419Stant — 27187ES72905