Mahle 42086CP Engine Piston Ring Set

Mahle 42086CP Piston Ring Set

Mahle 42086CP is a premium engine piston ring set built for 3.4449 in bore applications with a shallow groove design. It is engineered for Chrysler PT Cruiser and Dodge Neon fitments, with ring materials and coatings selected to support low friction, controlled oil use, and durable sealing performance.

Key Features

• Part number: 42086CP
• 3.4449 in bore diameter
• Premium item grade
• Top ring material: carbon steel
• Second ring material: carbon steel
• Oil ring assembly material: GNS
• Chrome piston ring face coating
• Standard oversize
• Shallow groove size
• Fits 2004-2009 Chrysler PT Cruiser and 2004-2005 Dodge Neon

Detailed Description

This Mahle piston ring set is built around OE-focused engineering priorities: reducing friction, lowering ring mass, limiting engine oil consumption, and supporting long service life. The 42086CP uses carbon steel for the top and second rings, a chrome-faced ring surface, and a GNS oil ring assembly to match the demands of standard-bore, shallow-groove engine builds. For shoppers searching for a Mahle 42086CP piston ring set for Chrysler PT Cruiser or Dodge Neon engine repair, this set provides the core ring components needed for a proper rebuild.

This part cross-references Hastings Piston Rings 2C5125 for the same application.

What It Helps Address

• Excessive oil consumption from worn or damaged rings
• Low compression caused by poor cylinder sealing
• Blow-by from ring wear or loss of tension
• Smoke from oil control ring deterioration
• Reduced engine efficiency during rebuild service

Installation Notes and Tips

Verify bore diameter, ring thickness, and groove style before assembly. This set is specified for a 3.4449 in bore with shallow groove dimensions, so ring end gap, cylinder finish, and piston groove condition should be checked during engine service. Clean ring lands thoroughly and follow the engine builder’s measurements and procedures for installation on 2004-2009 Chrysler PT Cruiser and 2004-2005 Dodge Neon applications.

Quality Assurance

Mahle supplies OE-oriented engine components and positions this piston ring set as a premium-grade replacement built to meet demanding sealing and wear requirements. The 42086CP reflects Mahle’s focus on friction reduction, oil control, and service life in modern piston ring design.