BBTV 4627 Engine Piston Ring
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BBTV

BBTV 4627 Engine Piston Ring

Brand BBTV 4627
1st Oil Groove 3.5
1st Oil Ring Material Steel rail/stainless exp
1st Oil Ring Surface Treatment Chrome
2nd Groove 1.75
2nd Ring Surface Treatment Phosphate
Cylinder Quantity 6
2nd Ring Material Grey iron
Top Ring Material Grey iron
Engborein 3.953
Engboremetric 100.40
Oversize Std
Top Groove 1.6
Top Ring Surface Treatment Phosphate
Fits Ford, Mazda, and Mercury · 61 vehicles

Standard sizing. Built for 3.953-inch bore engines with a precise fit specification.

Grey iron construction. Top and second rings use durable grey iron for consistent sealing performance.

Phosphate-treated rings. Surface treatment on the top and second rings adds corrosion resistance.

Cross-references 51550CP, E613X and H570P for the same application. See all 3.

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Engine Piston Ring for Ford and Mazda V6 Engines

This engine piston ring is built for 3.953-inch bore applications with standard oversize and a six-cylinder layout. It is a fitment-specific replacement for Ford and Mazda trucks and SUVs that use the listed engine configuration, including Ford Explorer, Ford Ranger, and Mazda B4000 applications.

Key Features

  • Standard oversize piston ring for 3.953-inch bore engines
  • Grey iron top ring and second ring construction
  • Chrome steel rail and stainless expander on the first oil ring
  • Phosphate surface treatment on the top and second rings
  • Engineered for six-cylinder cylinder block applications

Detailed Description

Part number 4627 is an engine piston ring set component for 6-cylinder engines with a 100.40 mm bore and standard sizing. The ring package uses grey iron for the top and second rings, while the first oil groove uses a steel rail and stainless expander with chrome surface treatment. The top ring and second ring also receive phosphate treatment for added surface protection. This part number 4627 is listed for Ford Explorer, Ford Ranger, Mercury Mountaineer, Ford Explorer Sport Trac, Ford Explorer Sport, Mazda B4000, Ford Aerostar, and Mazda Navajo applications.

What It Is Used For

  • Restoring cylinder sealing in worn engine assemblies
  • Reducing oil control issues caused by ring wear
  • Addressing compression loss from damaged or fatigued rings
  • Replacing piston rings during engine rebuild work

Installation Notes and Tips

Verify bore size, ring groove dimensions, and engine configuration before installation. Confirm the listed fitment for the exact year, make, and model, since this part number 4627 is application-specific. Proper ring end gap measurement and cylinder preparation are important for correct engine assembly.

Quality Assurance

Use this part only where the bore, groove dimensions, and cylinder count match the published specifications. Cross-reference part numbers for the same application include 51550CP and E613X.

This part fits 61 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2004FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2004FordExplorer Sport Trac4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2004FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2004MercuryMountaineer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2003FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2003FordExplorer Sport4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2003FordExplorer Sport Trac4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2003FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2003MercuryMountaineer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2002FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2002FordExplorer Sport4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2002FordExplorer Sport Trac4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2002FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2002MercuryMountaineer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2001FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2001FordExplorer Sport4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2001FordExplorer Sport Trac4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2001FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2001MercuryMountaineer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2000FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2000FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2000MazdaB40004.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
2000MercuryMountaineer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1999FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1999FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1999MercuryMountaineer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1998FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1998FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1998MazdaB40004.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1998MercuryMountaineer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1997FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1997FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1997FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1997MazdaB40004.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1996FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1996FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1996FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1996MazdaB40004.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1995FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1995FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1995FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1995MazdaB40004.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1994FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1994FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1994FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1994MazdaB40004.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1994MazdaNavajo4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1993FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1993FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1993FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1993MazdaNavajo4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1992FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1992FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1992FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1992MazdaNavajo4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1991FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1991FordExplorer4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1991FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1991MazdaNavajo4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1990FordAerostar4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
1990FordRanger4.0LV6Top Ring Surface Treatment: Phosphate; Weights: 0.970lb
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
51550CPE613XH570P