Mahle Rings Dodge / Cummins 6.7L Turbo Diesel 2009 - 2011 Moly Ring Set - Mahle OE MHL42140.040
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Mahle Rings Dodge / Cummins 6.7L Turbo Diesel 2009 - 2011 Moly Ring Set

$ 190.96
$ 190.96

The Mahle OE oe piston ring set identified by manufacturer part number 42140.040 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
2007-2010 Dodge Ram 2500 Verify engine and piston or ring configuration
2007-2010 Dodge Ram 3500 Verify engine and piston or ring configuration
2008-2009 Ford F-650 Verify engine and piston or ring configuration
2008-2009 Ford F-750 Verify engine and piston or ring configuration
2008 Dodge Ram 4500 Verify engine and piston or ring configuration
2008 Dodge Ram 5500 Verify engine and piston or ring configuration
2008 Kenworth T170 Verify engine and piston or ring configuration
2008 Kenworth T270 Verify engine and piston or ring configuration
2008 Kenworth T370 Verify engine and piston or ring configuration
2008 Peterbilt 330 Verify engine and piston or ring configuration
2008 Peterbilt 335 Verify engine and piston or ring configuration
2011-2015 Ram 4500 Verify engine and piston or ring configuration
2011-2015 Ram 5500 Verify engine and piston or ring configuration
2011-2017 Ram 2500 Verify engine and piston or ring configuration
2011-2017 Ram 3500 Verify engine and piston or ring configuration

Specifications

Brand Mahle OE
Manufacturer Part Number 42140.040
Product Type OE Piston Ring Set
Fitment Type Vehicle Specific
Condition New
Engine Displacement 6.7 L
Ring Face Moly

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 42140.040 fit my 2007-2010 Dodge Ram 2500?
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 42140.040 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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