MAHLE Piston

MAHLE is OEM (Original Equipment Manufacturer) for Cummins

Why waste money on some no-name Asian knock-off brand piston when you can have real MAHLE OEM Quality,  for near the same price??

FITS: 2006-2014  Cummins 6.7 Liter  24 Valve Dodge Cummins  I6 Turbo Diesel Engines VIN code: "A or L" (8th character of VIN#)
These Pistons fit Applications including most: 2006 - 2014 Pickup Trucks, Cutaway, Tow-truck & Van Applications

THIS LISTING IS FOR ONE STANDARD SIZE PISTON

Please pay close attention to the Combustion Bowls in the Top Center of the Pistons. (see pictures) They MUST MATCH the bowls in your pistons

 IF YOU NEED A DIFFERENT SIZE PLEASE LET US KNOW.

 
This listing is for one Piston with Clips, Wrist Pin and full Ring Set

MAHLE Pistons:

1. Ni-resist top grooves to control groove wear.

2. Balanced with OEM piston weight/s for smooth engine operation when installed alongside other existing original pistons.

3. The M124 Piston material (used in these pistons) is a highly evolved "Eutectic" material, which contains approximately 12% silicon for excellent strength and excellent thermal expansion properties.  For diesel engines, the    Eutectic material is chosen because it bonds better with the ring land or ring groove inserts used to strengthen and better support the piston rings in high performance/ high load diesel applications. 

The Eutectic material with MAHLE's ring groove inserts make a better piston than a forged material which does not hold the insert very well.

 Eutectic (12% silicon) vs. Hypereutectic (16% silicon)
 In diesel applications, the Eutectic material is desired over the Hypereutectic material which has approximately 16% silicon.  Hypereutectic is a harder material with the increased silicon content from 12% to 16% but tends to be more brittle with a shorter life span in diesel applications.
MAHLE uses Eutectic material so they can install high strength ring-land inserts into the piston grooves for longer life.  The ring insert is a much harder material than the bare piston material and doesn't allow the rings to wallow out the ring groove, hence... longer life.  The inserts can also be made smoother and controlled better than the process of cutting a groove in a raw piston.

MAHLE Piston Pins:

1. High strength steels meet structural requirements to prevent pin breakage or deflection.

2. Case hardened to provide long lasting wear surfaces.

3. A high degree of dimensional and surface finish control are the final requirements for strength and long life.

MAHLE Piston Rings:

  1.  All three rings that MAHLE/CLEVITE uses on their aftermarket loaded pistons are truly unique and are without a doubt, these ring-sets the absolute best in the business, even better than what is supplied to OEM’s like Ford and Cummins.

  2.  The top rings are completely unique to MAHLE CLEVITE, because they invented the process of manufacturing them. They are an ingenious and unique design incorporating high strength steel with impregnated high velocity moly facing,

 3.  The top ring (high strength steel with high velocity Moly impregnation) is an ideal mix of metals because the steel provides superior durability while the moly facing provides a hard surface that allows a minute amount of oil impregnation into the metal, providing superior compression sealing to the cylinder walls and minimal cylinder wall wear. This means more power and longer engine life. These rings are three full steps above the competitor’s ductile rings.

 4. The second ring (middle of piston) is your second line of defense for sealing compression from the top of the piston and sealing oil from below the piston. The high strength steel composition of this ring is ideally suited for both of these critical purposes (2 full quality steps above the competitor’s cast rings).   

 5. The oil ring (bottom ring) is completely unique to MAHLE CLEVITE, because MAHLE/CLEVITE invented it for the US Military during WWII. In the beginning of the war, the allied forces experienced crippling engine piston ring failure in many of the armored tanks (due to very dusty air intake) they turned to MAHLE/CLEVITE to come up with something more durable; It worked brilliantly!...and the new gold standard of steel oil ring with chrome coating was born. Since then, these rings have been improved even more by adding a nitrite coating in conjunction with the chrome finish.