HomeEngine > Cylinder Block ComponentsMahle 42077CP Engine Piston Ring Set
Part #: 42077CP

Mahle 42077CP Engine Piston Ring Set

⚙️ 49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mazda, and Mercury, B2300, Escape, Focus, Fusion, Mariner, Milan, Ranger, and Tribute
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Engine Piston Ring Set for Ford, Mazda, Mercury Vehicles

The Mahle 42077CP engine piston ring set is designed for precise fitment and reliable performance in select Ford, Mazda, and Mercury models. Engineered with premium materials and exact bore diameter specifications, this piston ring set supports efficient engine operation and durability.

Key Features of Mahle 42077CP Piston Ring Set

  • Bore diameter of 3.4449 inches for accurate cylinder fit
  • Premium item grade ensuring high-quality standards
  • Chrome coating on piston ring face for enhanced wear resistance
  • Oil ring assembly made from Gns material with 0.0984 inch axial height thickness
  • Second ring constructed from cast iron with 0.0468 inch thickness
  • Top ring made of carbon steel, also 0.0468 inch thick
  • Standard oversize piston rings with shallow groove design

Detailed Description of the Mahle 42077CP Engine Piston Ring Set

This piston ring set is engineered to meet the exact specifications required for proper sealing and oil control in engines with a 3.4449 inch bore diameter. The chrome face coating on the piston rings reduces friction and improves wear resistance, contributing to longer service life. The oil ring assembly, crafted from Gns material, features a thickness of 0.0984 inches, optimizing oil scraping and distribution. The second ring, made from cast iron, and the top ring, made from carbon steel, both have an axial height of 0.0468 inches, providing effective compression sealing and durability. The shallow groove size and standard oversize design ensure compatibility with factory cylinder dimensions, making this set suitable for maintaining engine performance in Ford B2300, Escape, Focus, Fusion, Mercury Mariner, Milan, Ranger, and Tribute models.

Applications and Common Issues Addressed

  • Restores proper compression and combustion efficiency
  • Reduces excessive oil consumption and smoking
  • Minimizes blow-by gases to improve engine performance
  • Prevents piston ring wear and cylinder wall damage
  • Supports engine rebuilds and maintenance for Ford, Mazda, and Mercury vehicles

Installation Notes and Tips

Ensure the cylinder bore is clean and within specification before installation. Use proper ring compressors and follow manufacturer torque specifications during assembly. Verify ring end gaps and orientation according to engine service manual guidelines. Avoid forcing rings into the cylinder to prevent damage.

Quality Assurance and Warranty

Mahle piston rings are manufactured to meet OEM standards with strict quality control processes. This premium grade piston ring set is designed for durability and consistent performance. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.

BrandMahle
Part Number42077CP
Bore Diameter (in)3.4449
Item GradePremium
Oil Ring Assembly MaterialGns
Oil Ring Assembly Thickness (Axial Height)0.0984 in
Piston Ring Face CoatingChrome
Piston Ring OversizeStandard
Second Ring MaterialCast iron
Second Ring Thickness (Axial Height)0.0468 in
SizeShallow groove
Top Ring MaterialCarbon steel
Top Ring Thickness (Axial Height)0.0468 in

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2011FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2010FordFocus2.0LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2010FordFusion2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2010FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2009FordFocus2.0LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2009FordFusion2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2009FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2009MercuryMilan2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008FordEscape2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008FordFocus2.0LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008FordFusion2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008MazdaTribute2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008MercuryMariner2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2008MercuryMilan2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007FordEscape2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007FordFocus2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007FordFocus2.0LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007FordFusion2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007MercuryMariner2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2007MercuryMilan2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006FordEscape2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006FordFocus2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006FordFusion2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006MazdaTribute2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006MercuryMariner2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2006MercuryMilan2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2005FordEscape2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2005FordFocus2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2005FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2005MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2005MazdaTribute2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2005MercuryMariner2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2004FordFocus2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2004FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2004MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2003FordFocus2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2003FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2003MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2002FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2002MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2001FordRanger2.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove
2001MazdaB23002.3LL4N/ASize Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Chrome; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.2mm; OCR-2.5mm; Ring Type UCR:RF-13U; LCR:BT-10; OCR: CP-20; Shallow Groove

* 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:

2C5158

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