Hastings 2.625" Standard Bore, 4-Cylinder Ring Set with 3/32" Top Ring, 3/32" Second Ring and a First Oil Ring is 3/16".
This Hastings 4-Cylinder Ring Set does not specify Ring Material or Ring Surface Treatment

Application Summary:

Year Make/Model
1994-1995 Chance Coach Transit Bus Power Tram
2015-2018 International 3100
2015-2018 International 4700
2015-2018 International CityStar
2018 International UrbanStar
1994 Spartan Motors Bus Chassis
Attributes
1st Oil Groove 3/16
2nd Groove 3/32
Alternate Part Number 7859
California Proposition 65 No
Engborein 2.625
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 3/32
GTIN 00075538249726