HomeEngine > Cylinder Block ComponentsSealed Power E-446K Engine Piston Ring Set
Part #: E-446K

Sealed Power E-446K Engine Piston Ring Set

⚙️ 70 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mazda, and Mercury, Windstar, B3000, Sable, Ranger, Taurus, Aerostar, Tempo, Topaz, and Probe
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Overview of Sealed Power Engine Piston Ring Set E-446K

The Sealed Power Engine Piston Ring Set E-446K is designed for reliable performance in six-cylinder engines. This set is compatible with Ford, Mazda, and Mercury vehicles including models like the Aerostar, B3000, Probe, Ranger, Sable, Taurus, Tempo, Topaz, and Windstar.

  • Standard size piston ring set with 89.00 mm bore diameter
  • Top ring made of steel with molybdenum coating for wear resistance
  • Second ring constructed from grey iron with reverse torsional face design
  • Oil ring features a 3-piece flex vent design with 4.00 mm width
  • Ring groove widths measure 1.5 mm for top and second rings, 4.0 mm for oil ring
  • Compatible with six-cylinder engines requiring precise fitment

Technical Specifications and Design Features

The E-446K piston ring set includes three rings per cylinder designed to optimize sealing and oil control. The top ring has a barrel face design and is made from steel with a molybdenum coating, which helps reduce wear and maintain compression. The second ring is 1.50 mm wide, made from grey iron, and features a reverse torsional face design to improve ring seal and reduce blow-by gases. The oil ring is a 3-piece flex vent type with a 4.00 mm width, engineered to provide effective oil scraping and control within the cylinder bore. The set is manufactured to standard size specifications with an 89.00 mm bore diameter, ensuring compatibility with the specified Ford, Mazda, and Mercury six-cylinder engines.

Compatible Vehicles and Applications

This piston ring set is compatible with a range of six-cylinder engines found in Ford, Mazda, and Mercury vehicles. It fits models such as the Ford Aerostar, B3000, Ranger, Taurus, Tempo, and Windstar, as well as the Mazda Probe and Mercury Sable and Topaz. The precise bore size and ring dimensions make it suitable for engine rebuilds or repairs requiring standard size piston rings.

  • Restores proper compression and engine performance
  • Reduces oil consumption and prevents excessive blow-by
  • Addresses worn or damaged piston rings causing loss of power
  • Helps eliminate engine smoking due to oil ring failure
  • Improves overall engine efficiency and longevity

Installation Notes and Tips

When installing the Sealed Power E-446K piston ring set, ensure the cylinder bore is clean and within specification. The rings are standard size and do not require filing or custom fitting. Proper ring orientation is critical: install the top ring with the barrel face outward and the second ring with the reverse torsional face correctly aligned. The 3-piece flex vent oil ring should be assembled carefully to maintain tension and proper oil control. Use appropriate ring compressors and follow manufacturer torque specifications during piston installation.

Quality Assurance and Warranty

Sealed Power piston rings are manufactured to meet OEM standards for durability and performance. The E-446K set undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, Sealed Power products typically come with a limited warranty against defects in materials and workmanship, providing confidence in the product’s reliability for engine rebuild applications.

BrandSealed Power
Part NumberE-446K
2nd Ring Face DesignReverse Torsional
2nd Ring MaterialGrey Iron
2nd Ring Width1.50
2nd Ring Width (mm)1.50
Bore Diameter89.00
Bore Size (mm)89.00
Cylinder Quantity6
Oil Ring Width4.00
Oil Ring Width (mm)4.00
Outside Diameter89.00
Outside Diameter (mm)89.00
Ring Set Groove Widths (mm)1.5 x 1.5 x 4.0
Short Circuit Protection3 Piece Flex Vent
Standard SizeStandard Size
Top Ring Face DesignBarrel Face
Top Ring MaterialSteel w/Moly
Top Ring Width1.50
Top Ring Width (mm)1.50

This part fits 70 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000FordWindstar3.0LV6N/AUse with H497P Piston; Ductile 2nd Ring; Moly Steel Top Ring; Premium; Ring Groove Widths: 1.5 (mm) , 1.5 (mm) , 4.0 (mm); Standard
2000MazdaB30003.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
2000MercurySable3.0LV6N/AUse with H497P Piston; Ductile 2nd Ring; Moly Steel Top Ring; Premium; Ring Groove Widths: 1.5 (mm) , 1.5 (mm) , 4.0 (mm); Standard
1999FordWindstar3.0LV6N/AUse with H497P Piston; Ductile 2nd Ring; Moly Steel Top Ring; Premium; Ring Groove Widths: 1.5 (mm) , 1.5 (mm) , 4.0 (mm); Standard
1999MazdaB30003.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1999MercurySable3.0LV6N/AUse with H497P Piston; Ductile 2nd Ring; Moly Steel Top Ring; Premium; Ring Groove Widths: 1.5 (mm) , 1.5 (mm) , 4.0 (mm); Standard
1998FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1998FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1998FordWindstar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1998MazdaB30003.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1998MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1997FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1997FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1997FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1997FordWindstar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1997MazdaB30003.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1997MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1996FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1996FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1996FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1996FordWindstar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1996MazdaB30003.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1996MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1995FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1995FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1995FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1995FordWindstar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1995MazdaB30003.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1995MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1994FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1994FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1994FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1994FordTempo3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1994MazdaB30003.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1994MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1994MercuryTopaz3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1993FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1993FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1993FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1993FordTempo3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1993MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1993MercuryTopaz3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1992FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1992FordProbe3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1992FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1992FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1992FordTempo3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1992MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1992MercuryTopaz3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1991FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1991FordProbe3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1991FordRanger3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1991FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1991MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1990FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1990FordProbe3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1990FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1990MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1989FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1989FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1989MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1988FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1988FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1988MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1987FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1987FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1987MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1986FordAerostar3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1986FordTaurus3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard
1986MercurySable3.0LV6N/ADuctile 2nd Ring, Moly Steel Top Ring, Premium, Ring Groove Widths: 1.5mm, 1.5mm, 4.0mm, Standard

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

21062812M57624149641496CP446KC3857C89156E6DZ6148AE9DZ6148AF6DZ6148MAF6DZ6148RAF7DZ6148AAPS1491

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.