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The Mahle OE oe piston ring set identified by manufacturer part number 42077CP is designed to restore combustion sealing and oil control when matched to the exact piston grooves and finished bore. Final compatibility depends on the exact engine and measured dimensions, not a similar vehicle name alone.
Key Features
- MAHLE Original piston rings are the most technically advanced piston rings in the industry.
- Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life.
- MAHLE Original piston rings lead the industry for the latest piston ring technology.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2001-2008 | Mazda | B2300 | Verify engine and piston or ring configuration |
| 2001-2011 | Ford | Ranger | Verify engine and piston or ring configuration |
| 2003-2010 | Ford | Focus | Verify engine and piston or ring configuration |
| 2005-2006 | Mazda | Tribute | Verify engine and piston or ring configuration |
| 2005-2008 | Ford | Escape | Verify engine and piston or ring configuration |
| 2005-2008 | Mercury | Mariner | Verify engine and piston or ring configuration |
| 2006-2009 | Mercury | Milan | Verify engine and piston or ring configuration |
| 2006-2010 | Ford | Fusion | Verify engine and piston or ring configuration |
| 2008 | Mazda | Tribute | Verify engine and piston or ring configuration |
| 2010 | Ford | Transit Connect | Verify engine and piston or ring configuration |
Specifications
| Brand | Mahle OE |
|---|---|
| Manufacturer Part Number | 42077CP |
| Product Type | OE Piston Ring Set |
| Fitment Type | Vehicle Specific |
| Condition | New |
| Engine Displacement | 2.3 L |
What's Included
One new Mahle OE piston ring set in the exact size and configuration stated in the specifications. Pistons and installation tools are not included unless expressly listed.
About Mahle OE
Mahle supplies original-equipment and replacement pistons, piston rings, bearings, filtration, thermal-management, and engine components for professional automotive and commercial-engine service.
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Frequently Asked Questions
Will Mahle OE 42077CP fit my 2001-2008 Mazda B2300?
That vehicle range is listed, but compatibility also depends on the exact engine code, bore, piston design, ring dimensions, oversize, and every current MAHLE application note.
What measurements must match before ordering this ring set?
Confirm finished bore diameter, piston groove dimensions, top, second, and oil-ring thicknesses, cylinder count, ring material, and whether the set is standard or oversize.
Should the engine block be measured before installing new rings?
Yes. Measure bore diameter, taper, out-of-round, surface finish, piston groove clearance, and ring end gap in each assigned cylinder before assembly.
Installation Instructions
Use the current Mahle instructions for part number 42077CP and the engine builder's measured assembly specifications. A qualified machine shop must verify bore finish, clearances, ring gaps, piston orientation, pin fit, deck height, valve clearance, compression ratio, lubrication, torque procedures, and break-in.
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