Cummins ISX Rebuild Kits from HHP | Highway & Heavy Parts

Here at HHP, we’re pretty proud of the rebuild kits we offer. So, we’re going to use this article to brag a little bit about our rebuild kits that fit various Cummins ISX engines.

Types of Rebuild Kits

Not all rebuilds are alike, and that’s why we won’t offer a one-size-fits-all kit. There are three different kit levels that fit the ISX that customers can choose from, depending on their needs.

Re-Ring Kits

Re-ring kits are a great option for those that still have pistons that are in great shape. These kits will have all of the standard rebuild kit components except for pistons. They will still come with piston rings, as piston rings should always be replaced when you work inside of the cylinders. The kit is called “re-ring” because you’re putting new piston rings on your current pistons. Installing a re-ring kit can easily be done while keeping the block in the vehicle frame.

Inframe Rebuild Kits

Inframe kits are the most common rebuild kits bought. Our best selling rebuild kit for an ISX engine is an inframe rebuild kit.

You would want an inframe kit for a standard rebuild, where you are not pulling the block out of the vehicle frame. It has everything needed to overhaul your engine, except a lower engine gasket set.

As an example, one of our kits for an ISX1 has these contents:

  • (6) Piston Kits
    • (12) Retaining Rings
    • (6) Piston Pins
    • (6) Engine Piston Assy
    • (6) Piston Ring Sets
      • (6)Top Piston Rings
      • (6) Compression Piston Rings
      • (6) Oil Piston Rings
  • (1) Main Bearing Set
  • (1) Bypass Valve Plunger
  • (6) Cylinder Liner Kits
    • (6) Liner Seals
    • (6) Cylinder Liners
  • (6) Connecting Rod CMI ISX Bearings
  • (1) Oil Pan Gasket
  • (1) Upper Engine Gasket Set
    • (1) O-Ring Seal
    • (1) O-Ring Seal
    • (1) O-Ring Seal
    • (1) Electronic Control Module
    • (1) Thermostat Housing Cover Gasket
    • (1) Thermostat Housing Gasket
    • (1) Turbocharger Gasket
    • (8) Cavity Plugs
    • (1) Camshaft Cover Seal
    • (1) Camshaft Cover Seal
    • (6) O-Ring Seals
    • (1) Exhaust Manifold Gasket
    • (4) Exhaust Manifold Gaskets
    • (1) Exhaust Manifold Gasket
    • (1) Rectangular Strip Seal
    • (1) Fuel Control Housing Gasket
    • (6) O-Ring Seals
    • (6) O-Ring Seals
    • (6) O-Ring Seals
    • (1) Cylinder Head ISX Gasket
    • (1) Flange Gasket
    • (6) O-Ring Seals
    • (6) Injector O-Ring Seals
    • (1) Grommet Seal
    • (1) Connection Gasket
    • (1) Camshaft Cover Gasket
    • (1) Camshaft Cover Gasket

Most ISX inframe kits will have these same general contents. Specific parts may change, depending on what your engine serial number calls for.

Features of the Kits for Cummins ISX

We offer the current generation of piston design. The pistons are forged steel, rather than cast, giving them superior strength to handle whatever your engine throws at them. These forged pistons also have an improved skirt profile and oil plate retention. The piston rings also feature a coating that improves performance and oil control.

The cylinder liners of the ISX kits HHP offers feature and induction-hardened plateau honed finish. This means you get the cylinder liners at the optimum hone, and the break-in after rebuild should result in fewer metal particles getting into your oil. This also means you should start off your newly-rebuilt engine with better sealing capability.

As of this spring, we also offer Anti-Polishing Ring (APR) Liners. It is important to note that these liners are not interchangeable with previous cylinder liner types, and apply to ISX15 Tier 4 XPI, single cam engine models. These liners feature a removeable, integrated carbon scraper ring at the top of the cylinder liner. The purpose of this ring is to prevent carbon from coming into contact with the cylinder walls. When carbon contacts the cylinder walls, the piston can build up with carbon, which polishes the cylinder liner. Polished cylinder liners lead to oil consumption, DPF regeneration, and decreased oil filter flow.

Highway and Heavy Parts strives for the satisfaction and success of our customers. If you have any outstanding questions about ISX rebuild kits, or general questions you need answered, please give us a call at (844) 215-3406.