Sealed H1123NCP piston set for the 2001-2010 Ford Explorer V6 4.0L and other vehicles carries combustion force from the cylinder to the connecting rod. Also called an engine piston set, it gives the performance and dependability of original equipment pistons.
- Duroshield skirt coating resists scuffing, reduces bore clearances and improves ring seal
- Hypereutectic piston material with a flat piston head
- Blended skirt coat reduces engine wear and fatigue and decreases piston slap
Quick facts
- Part: Sealed H1123NCP piston set
- Also called: engine piston set
- Fits: 2001-2010 Ford Explorer V6 4.0L and other vehicles
- Material: Hypereutectic
- Condition: New
Piston slap on a cold start, rising oil use or low compression can mean worn pistons. Worn piston rings, valve seals or a leaking head gasket can be behind the same signs, so find the cause before you buy. A shop can run compression and leak-down tests.
Fits
The set is listed for a wide range of Ford and Mercury models, including the 2005-2010 Ford Mustang V6 4.0L and the 2001-2005 Ford Explorer Sport Trac V6 4.0L, and a 4.0L V6 takes six pistons.
Specifications
Fit and size
- Quantity per vehicle: 6
- Piston pin outside diameter: 0.9451 in
- Compression height: 1.433 in
- Top compression ring thickness: 1.60 mm
- Second compression ring thickness: 1.75 mm
- Oversized: No
Build and materials
- Type: cast piston set
- Piston material: Hypereutectic
- Piston head: Flat
- Skirt coating: Duroshield
- Condition: New
- Country of origin: India
In the box
The piston set. Assembly lubricant is not included.
Interchange: P3090(6)STD · 224-3964
P428 · 2U3Z6108AA · 4L2Z6100AA
This part cross-references / interchanges with the following part numbers:
P428, P3090(6)STD, 2U3Z6108AA, 4L2Z6100AA, 224-3964
Frequently Asked Questions
Will Sealed H1123NCP pistons fit a 2005-2010 Ford Mustang V6 4.0L?
Yes. Sealed H1123NCP is listed for the 2005-2010 Ford Mustang V6 4.0L, the 2001-2010 Ford Explorer V6 4.0L and many other vehicles. If your car isn't named here, look it up in the "Vehicles it fits" section.
What does the Duroshield skirt coating on these pistons do?
The Duroshield skirt coating resists scuffing, reduces bore clearances and improves ring seal. The pistons are hypereutectic with a flat head.
Do these pistons come with assembly lubricant?
No. Assembly lubricant is not included with Sealed H1123NCP, so it has to be bought separately.
What are the piston pin diameter and ring thicknesses on this set?
The piston pin outside diameter is 0.9451 in and the compression height is 1.433 in. The top compression ring is 1.60 mm thick and the second is 1.75 mm.
Does Sealed H1123NCP replace 2U3Z6108AA?
Yes. 2U3Z6108AA is one of the numbers Sealed H1123NCP replaces, along with 4L2Z6100AA, 224-3964, P428 and P3090(6)STD.
