Hastings 2.953"/75.00 mm Standard Bore, 4-Cylinder Ring Set with .80 mm Top Ring, 1.00 mm Second Ring and a First Oil Ring is 1.50 mm.
This Hastings 4-Cylinder Ring Set has a top ring manufactured from steel with chrome ring surface treatment and second ring manufactured from ductile 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
2012-2014 Toyota Prius C
Attributes
1st Oil Groove 1.50
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
1st Oil Ring Surface Treatment CHROME
2nd Groove 1.00
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2C5118
California Proposition 65 No
Engborein 2.953
Engboremetric 75.00
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 0.80
Top Ring Surface Treatment CHROME
GTIN 00075538347729