HomeEngine > Hardware, Fasteners and FittingsMahle GS33478 Engine Cylinder Head Bolt Set
Part #: GS33478

Mahle GS33478 Engine Cylinder Head Bolt Set

53 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, GX470, 4Runner, Sequoia, Tundra, LX470, and Land Cruiser
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Overview of Mahle GS33478 Engine Cylinder Head Bolt Set

The Mahle GS33478 Engine Cylinder Head Bolt Set is designed for reliable fastening in select Toyota and Lexus engines. Engineered with OEM standard steel bolts featuring a hex head style, this set ensures secure and precise cylinder head installation for your vehicle.

  • OEM standard grade steel bolts for durability and strength
  • Hex fastener head style for easy torque application
  • Washers not required, simplifying installation
  • Compatible with multiple Toyota and Lexus models including 4Runner, GX470, Land Cruiser, LX470, Sequoia, and Tundra
  • Part number GS33478 for accurate identification and fitment

Detailed Product Description

This engine cylinder head bolt set from Mahle is manufactured to meet OEM standards, ensuring the correct specifications for torque and strength. The bolts are made from high-quality steel, providing the necessary durability to withstand engine operating conditions. The hex head design allows for straightforward installation and removal using standard tools. Washers are not required with this set, which reduces the number of components and potential points of failure during assembly.

Specifically designed for Toyota and Lexus vehicles, this set fits models such as the Toyota 4Runner, Land Cruiser, Sequoia, and Tundra, as well as Lexus GX470 and LX470. Using the correct cylinder head bolts like the Mahle GS33478 helps maintain proper cylinder head sealing and engine performance.

Common Applications and Issues Addressed

  • Replacement of worn or damaged cylinder head bolts during engine rebuilds
  • Resolving cylinder head gasket leaks caused by improper bolt torque or stretch
  • Preventing cylinder head warping due to uneven bolt tension
  • Ensuring engine reliability by maintaining correct cylinder head clamping force
  • Addressing bolt corrosion or fatigue in high-mileage Toyota and Lexus engines

Installation Notes and Tips

  • Follow manufacturer torque specifications and tightening sequence for your specific vehicle model
  • Use a calibrated torque wrench to ensure accurate bolt tension
  • Replace all cylinder head bolts as a set to maintain uniform clamping force
  • Inspect cylinder head and gasket surfaces for damage before installation
  • Since washers are not required, ensure bolt seats are clean and free of debris

Quality Assurance and Warranty

Mahle manufactures this cylinder head bolt set to meet OEM standards, ensuring consistent quality and fitment. The steel fasteners are engineered for durability under engine operating conditions. While specific warranty details may vary, Mahle products typically come with a limited warranty against manufacturing defects. Always verify warranty terms with the product documentation or supplier.

BrandMahle
Part NumberGS33478
Additional Package ContentsNone
Fastener Head StyleHex
Fastener MaterialSteel
Fastener StyleBolt
Item GradeOEM Standard
Washers IncludedNot Required

This part fits 53 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009LexusGX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2009Toyota4Runner4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2009ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2009ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2008LexusGX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2008Toyota4Runner4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2008ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2008ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2007LexusGX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2007LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2007Toyota4Runner4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2007ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2007ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2007ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2006LexusGX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2006LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2006Toyota4Runner4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2006ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2006ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2006ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2005LexusGX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2005LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2005Toyota4Runner4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2005ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2005ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2005ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2004LexusGX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2004LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2004Toyota4Runner4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2004ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2004ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2004ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2003LexusGX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2003LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2003Toyota4Runner4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2003ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2003ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2003ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2002LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2002ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2002ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2002ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2001LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2001ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2001ToyotaSequoia4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2001ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2000LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2000ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
2000ToyotaTundra4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
1999LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
1999ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel
1998LexusLX4704.7LV8N/AContains Cylinder Head Bolt Washers; Steel
1998ToyotaLand Cruiser4.7LV8N/AContains Cylinder Head Bolt Washers; Steel

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

ES 74035

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.