Sealed H1557CPA .75MM piston set for the 2014-2017 Ram 2500 V8 6.4L and other vehicles carries combustion pressure down to the connecting rod. This cast set is oversized by 0.75 mm and meets or exceeds OEM specifications.
- Cast with S2N for strength and durability
- Hypereutectic piston material
- Exacting tolerances from state-of-the-art manufacturing
- Up-tilt ring grooves improve piston-to-ring sealing and blow-by control
Quick facts
- Part: Sealed H1557CPA .75MM piston set
- Also called: engine piston set
- Fits: 2014-2017 Ram 2500 V8 6.4L and other vehicles
- Material: Hypereutectic
- Condition: New
Oil consumption, low compression or heavy crankcase blow-by can mean worn pistons. Worn rings, valve seals or a cylinder bore out of spec can be behind them too, so find the cause before you buy pistons.
Fits
The vehicles it fits include the 2014-2017 Ram 2500 V8 6.4L, the 2014-2017 Ram 3500 V8 6.4L and the 2014-2016 Ram 4500 V8 6.4L, and the 6.4L V8 takes eight pistons. If your truck is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per application: 8
- Oversize: 0.75 mm
- Compression height: 30.1 mm
- Piston pin outside diameter: 24.01 mm
- Top compression ring thickness: 1.56 mm
- Second compression ring thickness: 1.25 mm
Build and materials
- Type: cast piston set
- Piston material: Hypereutectic
- Condition: New
- Country of origin: India
In the box
One piston set. Assembly lubricant is not included.
Interchange: 68230024AA · 68230025AA
Frequently Asked Questions
Does the Sealed H1557CPA .75MM fit the 2014-2017 Ram 2500 V8 6.4L?
Yes. Sealed H1557CPA .75MM fits the 2014-2017 Ram 2500 V8 6.4L, and it also fits the 2014-2017 Ram 3500 V8 6.4L.
Is assembly lubricant included with these pistons?
No. Assembly lubricant is not included with the Sealed H1557CPA .75MM piston set, so it has to be bought separately.
Is this engine piston set standard size or oversized?
This piston set is oversized by 0.75 mm. The piston pin outside diameter is 24.01 mm and the compression height is 30.1 mm.
What signs can mean worn pistons?
Oil consumption, low compression and heavy crankcase blow-by can go with worn pistons. A shop can test compression to narrow it down.
What do the up-tilt ring grooves do on this piston set?
The grooves are tilted upward so the rings seal more tightly against the piston and blow-by stays in check. S2N casting adds strength and durability.
