Hastings 4.055"/103.00 mm Bore +.020"/.50 mm, 8-Cylinder Ring Set with 3.00 mm Top Ring, 2.00 mm Second Ring and a First Oil Ring is 3.00 mm.
This Hastings 8-Cylinder Ring Set has a top ring manufactured from stainless steel with nitrided ring surface treatment, a second ring manufactured from ductile iron with chrome ring surface treatment. The 1st oil control ring is manufactured of stainless steel with a nitrided ring surface treatment.

Application Summary:

Year Make/Model
2006-2016 Chevrolet Express 2500
2006-2016 Chevrolet Express 3500
2009-2016 Chevrolet Express 4500
2001-2016 Chevrolet Silverado 2500 HD
2007 Chevrolet Silverado 2500 HD Classic
2001-2006 Chevrolet Silverado 3500
2007 Chevrolet Silverado 3500 Classic
2007-2016 Chevrolet Silverado 3500 HD
2006-2016 GMC Savana 2500
2006-2016 GMC Savana 3500
2009-2016 GMC Savana 4500
2001-2016 GMC Sierra 2500 HD
2007 GMC Sierra 2500 HD Classic
2001-2006 GMC Sierra 3500
2007 GMC Sierra 3500 Classic
2007-2016 GMC Sierra 3500 HD
2006 Hummer H1
Attributes
1st Oil Groove 3.00
1st Oil Ring Material STAINLESS STEEL
2nd Groove 2.00
2nd Ring Surface Treatment CHROME
Alternate Part Number 2D4845.50
California Proposition 65 No
Engborein 4.055
Engboremetric 103.00
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 3.00
Top Ring Surface Treatment NITRIDED
GTIN 00075538296614