Hastings 3.661"/93.00 mm Bore +.010" Over Size, 6-Cylinder Ring Set with 1.20 mm Top Ring, 1.20 mm Second Ring and a First Oil Ring is 2.50 mm.
This Hastings 6-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
2004-2006 Buick Rainier
2004-2006 Chevrolet Colorado
2002-2006 Chevrolet Trailblazer
2004-2006 GMC Canyon
2002-2006 GMC Envoy
2006 Hummer H3
2003-2005 Isuzu Ascender
2006 Isuzu i-350
2002-2004 Oldsmobile Bravada
Attributes
1st Oil Groove 2.50
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.20
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2M4781.010
California Proposition 65 No
Engborein 3.661
Engboremetric 93.00
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 00075538233404