Clamp the cylinder head securely back onto the block during your head gasket or cylinder head job with the APEX Automobile Parts Inc Cylinder Head Bolt Set, part number AHB849. It is a direct-fit replacement for many vehicles with the L6-3.0L engine, among them the 1993-1998 Toyota Supra 3.0L, 1993-2005 Lexus GS300 3.0L and 2001-2005 Lexus IS300 3.0L; see the "Vehicles it fits" section for the full list.
Head bolts hold the cylinder head against the engine block and keep the head gasket under clamping load so it can seal between the two. This engine cylinder head bolt set supplies replacement head bolts for reinstalling the head.
- Head bolt set: Sold as a set of cylinder head bolts.
- Quantity per application: The listed applications use one set.
- Engine-specific fitment: Cataloged for the L6-3.0L engine in the listed applications; see the "Vehicles it fits" section for every vehicle.
Signs this part may need replacing: Existing head bolts that show damaged threads, corrosion, or stretching. Head bolts are also commonly replaced when the cylinder head comes off for a head gasket replacement or other head work.
Consult the vehicle service information for the correct tightening sequence and torque procedure, and for whether the original bolts may be reused.
Frequently Asked Questions
What vehicles does the APEX AHB849 head bolt set fit?
It fits many vehicles with the L6-3.0L engine, among them the 1993-1998 Toyota Supra 3.0L, 1993-2005 Lexus GS300 3.0L and 2001-2005 Lexus IS300 3.0L. See the "Vehicles it fits" section for the full list.
What does a cylinder head bolt set do?
Head bolts clamp the cylinder head to the engine block. They hold the head gasket under clamping load so it can seal between the head and the block.
When should cylinder head bolts be replaced?
Head bolts are commonly replaced when the cylinder head comes off for a head gasket or head service. They are also replaced when the bolts show damaged threads, corrosion, or stretching.
Can I reuse my original head bolts?
Consult the vehicle service information for whether the original head bolts may be reused, along with the correct tightening sequence and torque procedure.
How many AHB849 sets do I need?
The listed applications use one set of AHB849 per engine.
