Hastings 3.465"/88.00 mm Standard Bore, 6-Cylinder Ring Set with 1.50 mm Top Ring, 1.75 mm Second Ring and a First Oil Ring is 2.50 mm.
This Hastings 6-Cylinder Ring Set has a top ring manufactured from stainless steel with nitrided ring surface treatment, a second ring manufactured from ductile iron with phosphate ring surface treatment. The 1st oil control ring is manufactured of nitride rail/stainless expansion with a nitrided ring surface treatment.

Application Summary:

Year Make/Model
2006-2009 Mercedes-Benz C230
2010-2011 Mercedes-Benz C250
2006-2007 Mercedes-Benz C280
2008-2009 Mercedes-Benz C300
2012 Mercedes-Benz C300
2007-2009 Mercedes-Benz CLK280
2007-2009 Mercedes-Benz E280
2008-2011 Mercedes-Benz E300
2010-2012 Mercedes-Benz GLK300
2006-2008 Mercedes-Benz SLK280
2009-2011 Mercedes-Benz SLK300
Attributes
1st Oil Groove 2.50
1st Oil Ring Material NITRIDE RAIL/STAINLESS EXP
2nd Groove 1.75
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2N4059
California Proposition 65 No
Engborein 3.465
Engboremetric 88.00
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.50
Top Ring Surface Treatment NITRIDED
GTIN 00075538399445