CUMMINS 5.9 L PISTONS + rings 2004.5-09 MAHLE +.020\" 17:1 H/O 6 Matched/Balanced For Sale

MAHLE is OEM (Original Equipment Manufacturer) for Cummins

Why waste money onsome no-nameAsian knock-off brand piston when you can have real US Based MAHLEOEM Quality, for near the same price??

FITS: VIN Codes: \'C \' (2004.5-2009) 5.9 Liter 6BT 24 ValveDodge CumminsI6 TurboDiesel EnginesVIN code: \"C\" (8th character of VIN#)

These Pistons fitall engine applications including all: Pickup Trucks, Cutaway, Tow-truck& Van Applications for engines as listed above.

THIS LISTING IS FOR+.020 SIZEPISTONS& RINGS

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

IF YOU NEED A DIFFERENT SIZE PLEASE LET US KNOW.

This is a complete set of6 Pistons withRings, Clips & Wrist Pins.

MAHLE Pistons

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

2. Balanced Set of 6for smooth engine operation.

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.