Sealed E-1005K .25MM piston ring set for the 2011-2017 Ford F-150 V8 5.0L and other vehicles seals each piston against the cylinder wall and helps control oil. This engine piston ring set is 0.25 mm oversize and covers eight cylinders, one ring group per piston.
- Moly-plasma top ring with a porous surface for oil-carrying capacity, a more effective compression seal and less friction and drag
- Second rings in grey iron with phosphate coating seat instantly and control inter-ring pressure to improve cylinder sealing
- Second ring with a reverse torsional face passes heat efficiently from piston to cylinder and aids oil control
- 3-piece flex vent oil ring design keeps tension uniform and gives a positive seal
Quick facts
- Part: Sealed E-1005K .25MM piston ring set
- Also called: engine piston ring set
- Fits: 2011-2017 Ford F-150 V8 5.0L and other vehicles
- Material: top ring steel with moly; second ring grey iron with phosphate coating
- Condition: New
Worn rings can show up as oil consumption, blue-gray exhaust smoke or low compression, though other engine problems can look the same. With the engine off and cool, look at the spark plugs for oil fouling, and leave compression or leak-down testing to a shop so the cause is found before a rebuild.
Fits
This piston ring set fits the 2011-2017 Ford F-150 V8 5.0L and the 2011-2017 Ford Mustang V8 5.0L.
Specifications
Fit and size
- Oversize: 0.25 mm
- Cylinder quantity: 8
- Quantity per vehicle: 1 set
- Ring groove widths: 1.2 x 1.2 x 2.5 mm (top, second, oil)
Build and materials
- Top ring material: steel with moly
- Second ring material: grey iron with phosphate coating
- Second ring face: reverse torsional
- Oil ring design: 3-piece flex vent
- Condition: New
- Country of origin: United States
In the box
Compression rings, rails and an oil spacer.
Interchange: PR4299.10 · M92218-.25 · 021-6925-010 · 42149CP.010
42155CP030 · 2M4599010
This part cross-references / interchanges with the following part numbers:
42155CP030, PR4299.10, M92218-.25, 2M4599010, 021-6925-010, 42149CP.010
Frequently Asked Questions
Are these piston rings the right set for the 2011-2017 Ford Mustang V8 5.0L?
Yes. Sealed E-1005K .25MM is listed for the 2011-2017 Ford Mustang V8 5.0L, and it is also listed for the 2011-2017 Ford F-150 V8 5.0L.
What pieces are in this 0.25 mm oversize ring set?
Sealed E-1005K .25MM comes with compression rings, rails and an oil spacer, with ring groups for eight cylinders.
What is the top ring made of on this piston ring set?
The top ring is steel with moly and has a moly-plasma surface. Its porous surface carries oil and reduces friction and drag. The second ring is grey iron with phosphate coating.
What kind of oil ring does this piston ring set use?
It uses a 3-piece flex vent oil ring, 2.50 mm wide. The design keeps tension uniform and gives a positive seal.
What does .25MM mean in Sealed E-1005K .25MM?
It marks the oversize: this set is 0.25 mm oversize. Its ring groove widths are 1.2 x 1.2 x 2.5 mm.
