Hastings 4.000"/101.60 mm Bore +.040" Over Size, 8-Cylinder Ring Set with 1.20 mm Top Ring, 1.50 mm Second Ring and a First Oil Ring is 2.50 mm.
This Hastings 8-Cylinder Ring Set has a top ring manufactured from steel with plasma moly ring surface treatment, a second ring manufactured from grey iron with phosphate ring surface treatment. The 1st oil control ring is manufactured of steel rail/stainless expansion with a chrome rail ring surface treatment.

Application Summary:

Year Make/Model
2006-2007 Cadillac CTS
2009-2013 Cadillac Escalade
2007-2009 Chevrolet Avalanche
2011-2014 Chevrolet Caprice
2017 Chevrolet Caprice
2006-2007 Chevrolet Corvette
2005-2016 Chevrolet Express 2500
2005-2016 Chevrolet Express 3500
2010-2016 Chevrolet Express 4500
2007-2012 Chevrolet Silverado 1500
2007 Chevrolet Silverado 1500 Classic
2001-2003 Chevrolet Silverado 1500 HD
2005-2006 Chevrolet Silverado 1500 HD
2001-2019 Chevrolet Silverado 2500 HD
2007 Chevrolet Silverado 2500 HD Classic
2005-2006 Chevrolet Silverado 3500
2008-2013 Chevrolet Silverado 3500
2015-2018 Chevrolet Silverado 3500
2007 Chevrolet Silverado 3500 Classic
2007-2019 Chevrolet Silverado 3500 HD
2005-2006 Chevrolet SSR
2016 Chevrolet Suburban
2006-2009 Chevrolet Suburban 1500
2005-2013 Chevrolet Suburban 2500
2008-2013 Chevrolet Tahoe
2006-2009 Chevrolet Trailblazer
2005-2016 GMC Savana 2500
2019 GMC Savana 2500
2005-2016 GMC Savana 3500
2010-2016 GMC Savana 4500
2005-2013 GMC Sierra 1500
2007 GMC Sierra 1500 Classic
2005-2016 GMC Sierra 2500 HD
2007 GMC Sierra 2500 HD Classic
2005-2006 GMC Sierra 3500
2007 GMC Sierra 3500 Classic
2007-2016 GMC Sierra 3500 HD
2008-2013 GMC Yukon
2007-2009 GMC Yukon XL 1500
2005-2013 GMC Yukon XL 2500
2005-2007 Hummer H2
2008-2009 Pontiac G8
2005-2006 Pontiac GTO
2008-2009 Saab 9-7x
Attributes
1st Oil Groove 2.50
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.50
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2M5170.040
California Proposition 65 No
Engborein 4.000
Engboremetric 101.60
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.20
Top Ring Surface Treatment PLASMA MOLY
GTIN 00075538274827