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Cummins

Cummins 4955354

Cummins 4955354 6.7L ISB Upper Engine Head Gasket Kit

6.7L Cummins 4955354 OEM Upper Engine Head Gasket Kit

This is a brand new complete upper engine head gasket kit manufactured by Cummins. The 4955354 gasket set is required to successfully replace the blown head gasket on your Cummins 6.7L ISB. If you own a Cummins 6.7L and you're having issues with a loss of heat or high engine coolant temperatures, then it may be time to replace your head gasket. The Cummins 6.7L diesel engine has a unique problem that many owners with increased power levels are now dealing with. 

Why is the head gasket failing on the Cummins 6.7L Diesels?

The 6.7L has a longer stroke and a quick-spooling VGT variable geometry turbocharger which produces increased cylinder pressure at low engine RPMs. The Cummins 6.7L also features an increased bore diameter which means less head gasket material between the cylinders and the coolant jackets. Combine these factors with increased power output level and you start to see why head gasket failure is so common on 2007.5 to 2020 Dodge Ram trucks with the Cummins 6.7L diesel.

If you own a Cummins 6.7L and you are having any of the following issues it's now time to look at this Cummins 6.7L upper engine rebuild kit to solve these conditions:

  • Issues with loss of heat
  • High engine coolant temperatures.
  • Sounds of air bubbles are traveling through the dashboard.
  • Dramatic engine temperature fluctuations.
  • Loss of compression in select cylinders

This 6.7L Cummins upper engine head gasket kit application:

  • 2007.5 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2008 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2009 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2010 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2011 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2012 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2013 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2014 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2015 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2016 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2017 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2018 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2019 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • 2020 Dodge Ram 2500, 3500, 4500, and 5500 series trucks with the 6.7L Cummins ISB motor.
  • B-Series 6.7L Cummins
  • 6B 6.7L Cummins
  • 2007 to 2020 QSB 4-Valve 6.7L Cummins
  • 2007 to 2020 ISB 4-Valve 6.7L Cummins

2007.5 to 2020 Dodge Ram 6.7L Cummins OEM Upper Engine Head Gasket Set Components:

  • One Cummins 3089240 Seal O-Ring 
  • Two Cummins 3678603 O-Ring 
  • Two Cummins 3678786 Seal O-Ring 
  • One Cummins 3947530 Gasket, Int Manifold Cover
  • One Cummins 3949910 Gasket, Connection 
  • One Cummins 3954829 Seal Thermostat
  • Twenty Four Cummins 3955393 Seal Valve Stem 
  • One Cummins 3963379 Gasket Rocker Cover ISB 
  • Eleven Cummins 3963990 Washer, Sealing 
  • Six Cummins 3976371 Seal Injector 
  • Six Cummins 3977393 Seal O-Ring 
  • Two Cummins 3979769  Gasket EGR Valve 
  • One Cummins 4931365  Gasket Oil Drain 
  • One Cummins 4932210 Gasket, Cylinder Head 
  • One Cummins 4933223 Gasket Connection
  • One Cummins 4933225 Gasket Exhaust Outlet Connection 
  • One Cummins 4933235 Gasket Connection 
  • Two Cummins 4933628 Lock Plate 
  • One Cummins 5260647 Gasket Connection 
  • One Cummins 5260648 Gasket Turbo 
  • One Cummins 5264566 Gasket Connection
  • One Cummins 5266422 Gasket Exhaust Manifold 
  • One Cummins 5266801 Gasket Connection 

The purchase of this complete OEM Cummins 6.7L Turbo Diesel kit will allow you to do the repair without a single missing part. Having all the parts on hand makes the repair a straight forward repair.

KLM Performance recommends the purchase of the ARP 247-4202 Cummins Diesel Head Stud Kit in order to ensure the integrity of your head gasket.

Why do I need to purchase the ARP head Studs for my 6.7L Cummins?

The ARP 247-4202 Head Studs are the fix to a problem of a blown head gasket on the 6.7L Cummins diesel engine. The use of improved ARP head-to-block fasteners provides dramatically increased levels of clamping force when compared to the factory head bolts.  When you are replacing the gaskets and seals contained within the Cummins 4955354 6.7L ISB Upper Engine Kit you have already spent a great deal of time and money to ensure the cylinder head has been properly resurfaced. After you have inspected the engine block for trueness it is now time to seal the engine with an improved fastener. This is where the use of an improved faster will ensure you do not repeat this process again.  

  • engine: 6.7L Cummins |  6.7L ISB 
  • Flow Rate:
  • Item Number: Cummins 495535438
  • Make: : Cummins | Dodge | Ram
  • Model: 2500 | 3500 | 4500 | 5500
  • Year: 2007.5 | 2008 | 2008.5 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020
  • Manufacturer Part No: Cummins 4955354
  • Product Application: 2007.5 to 2020 Dodge Ram 6.7L Cummins
  • Height: 5
  • Width: 4
  • Brand: Cummins
  • faq Many owners of the 6.7L Cummins with increased power levels have to deal with a blown head gasket. The OEM Cummins 4955354 upper engine gasket set is a complete service kit that contains all of the required seals and gaskets needed for the removal and replacement of the cylinder head on your Cummins 6.7L ISB. Sold as a complete service kit for replacing a head gasket on a 6.7L Cummins engine you can be sure you will have exactly what you need to complete the job. If your own Cummins 6.7L is currently suffering from any of the conditions noted above its time for you to purchase this OEM Cummins 4955354 upper engine gasket set.
  • Part Number: 4955354
  • Manufacturer: Cummins
  • Beam Pattern:
  • Product Note: Cummins Parts Are A Non-Returnable Item. Please make sure you have ordered the correct part for your Cummins diesel engine!

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