Sealed 2785PN 1.00MM engine piston for the 2011-2016 Chevrolet Express 2500 V8 6.6L and other vehicles transfers combustion force from the cylinder to the connecting rod. It is an oversized diesel piston.
- Diesel piston cast with S2N proprietary alloy
- Graphite skirt coating helps prevent scuffing of the skirt and cylinder wall
- Cast aluminum piston body
- Bowl-type piston head
Quick facts
- Part: Sealed 2785PN 1.00MM engine piston
- Fits: 2011-2016 Chevrolet Express 2500 V8 6.6L and other vehicles
- Material: Cast aluminum
- Condition: New
Heavy oil use, low compression or an engine knock can mean a worn piston, though worn piston rings or a damaged cylinder bore can lie behind those signs too, so find the cause before replacing the piston.
Fits
It is listed for a wide range of Chevrolet and GMC models, including the 2012-2016 Chevrolet Express 3500 V8 6.6L and the 2012-2016 Chevrolet Express 4500 V8 6.6L.
Specifications
Fit and size
- Cylinder bore diameter: 103.00 mm
- Piston pin outside diameter: 34.50 mm
- Compression height: 49.60 mm
- Top compression ring thickness: 3.00 mm
- Second compression ring thickness: 2.00 mm
- Oil ring thickness: 3.00 mm
- Oversized: Yes (1.00MM)
- Quantity per vehicle: 8 (V8 6.6L)
Build and materials
- Material: Cast aluminum
- Skirt coating: Graphite
- Condition: New
- Country of origin: United States
In the box
One diesel cast piston. Assembly lubricant is not included. This listing is one piston, and the V8 6.6L engines it fits take eight.
Interchange: S224-3935-1.00MM
2243935100MM
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
2243935100MM, S224-3935-1.00MM
Frequently Asked Questions
Does the Sealed 2785PN 1.00MM piston fit the 2012-2016 Chevrolet Express 3500 V8 6.6L?
Yes. Sealed 2785PN 1.00MM is listed for the 2012-2016 Chevrolet Express 3500 V8 6.6L. If your own vehicle is a different one, look for it in the "Vehicles it fits" section.
Does this diesel piston come with assembly lubricant?
No. The listing is one diesel cast piston, and assembly lubricant is not included.
What cylinder bore size does this 2785PN 1.00MM piston use?
It is made for a 103.00 mm cylinder bore diameter. It has a 34.50 mm piston pin outside diameter and a 49.60 mm compression height, and it is an oversized piston.
What does the graphite skirt coating on this piston do?
The graphite skirt coating helps prevent scuffing of the piston skirt and the cylinder wall. The piston itself is cast with S2N proprietary alloy.
Does Sealed 2785PN 1.00MM replace piston number S224-3935-1.00MM?
Yes. S224-3935-1.00MM is listed as an interchange number for Sealed 2785PN 1.00MM, along with 2243935100MM.
