Hastings 4.250"/107.95 mm Standard Bore, 8-Cylinder Ring Set with 2.00 mm Top Ring, 2.00 mm Second Ring and a First Oil Ring is 4.00 mm.
This Hastings 8-Cylinder Ring Set has a top ring manufactured from grey iron with chrome ring surface treatment and second ring manufactured from grey iron with a 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
2001-2009 Chevrolet C6500 Kodiak
Attributes
1st Oil Groove 4.00
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 2.00
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2C5085
California Proposition 65 No
Engborein 4.250
Engboremetric 107.95
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 2.00
Top Ring Surface Treatment CHROME
GTIN 00075538274490