APEX Automobile Parts Inc Engine Cylinder Head Bolt Set AHB551
APEX Automobile Parts Inc Engine Cylinder Head Bolt Set AHB551

APEX Automobile Parts Inc Engine Cylinder Head Bolt Set P/N:AHB551

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$58.99
MPN: AHB551
Item Package Quantity: 1
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APEX Automobile Parts Inc Engine Cylinder Head Bolt Set P/N:AHB551
APEX Automobile Parts Inc Engine Cylinder Head Bolt Set P/N:AHB551
$58.99

Clamp the cylinder head back down to the block during your next head gasket or cylinder head job with the APEX Cylinder Head Bolt Set AHB551. It is a direct-fit replacement for the listed applications, including the 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra with the L4-2.5L engine, the 2004-2015 Nissan Titan and 2005-2015 Nissan Armada with the V8-5.6L engine, and the 2005-2013 Nissan Frontier with the L4-2.5L.

Head bolts hold the cylinder head against the engine block and supply the clamping force the head gasket relies on to seal. They are commonly replaced whenever the head comes off. Always follow the vehicle service information for the correct tightening sequence and torque, and to check whether the original bolts may be reused.

  • Part type: Head bolt set.
  • Listed engines: L4-2.5L and V8-5.6L.
  • Quantity per application: The listed L4-2.5L applications use 1 set. The listed V8-5.6L applications use 2 sets.

This set is listed for the following applications:

  • L4-2.5L: 2002-2006 Nissan Altima; 2002-2006 Nissan Sentra; 2005-2013 Nissan Frontier; 2009-2012 Suzuki Equator; 2014-2015 Nissan Pathfinder
  • V8-5.6L: 2004-2010 Infiniti QX56; 2004 Nissan Pathfinder Armada; 2004-2015 Nissan Titan; 2005-2015 Nissan Armada; 2008-2012 Nissan Pathfinder; 2012-2017 Nissan NV2500; 2012-2017 Nissan NV3500

See the Buyer's Guide tab for complete application details.

Frequently Asked Questions

What does this head bolt set do?

It supplies the bolts that clamp the cylinder head to the engine block. That clamping force is what the head gasket relies on to seal.

How many sets do I need?

The listed V8-5.6L applications use 2 sets per vehicle. The listed L4-2.5L applications use 1 set.

Can I reuse my original head bolts?

Many head bolts are intended for single use. Check the vehicle service information for your engine to see whether the originals may be reused, and for the correct tightening sequence and torque.

Which vehicles use this engine cylinder head bolt set?

It is listed for applications such as the 2004-2015 Nissan Titan (V8-5.6L), the 2005-2013 Nissan Frontier (L4-2.5L) and the 2009-2012 Suzuki Equator (L4-2.5L). See the Buyer's Guide tab for the full list.

When are head bolts usually replaced?

Head bolts are commonly replaced whenever the cylinder head is removed, such as during a head gasket replacement or cylinder head service. Follow the service procedure for your engine.

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