Hastings 4.091"/103.9 mm Standard Bore, 8-Cylinder Ring Set with 1.50 mm Top Ring, 1.20 mm Second Ring and a First Oil Ring is 2.00 mm.
This Hastings 8-Cylinder Ring Set has a top ring manufactured from steel with plasma moly ring surface treatment, a second ring manufactured from ductile iron with phosphate ring surface treatment. The 1st oil control ring is manufactured of stainless steel with a chrome ring surface treatment.

Application Summary:

Year Make/Model
2019 Ram 4000
2019-2020 Ram 4500
2019-2020 Ram 5500
Attributes
1st Oil Groove 2.00
1st Oil Ring Surface Treatment CHROME
2nd Groove 1.20
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2M5433
California Proposition 65 No
Engborein 4.091
Engboremetric 103.9
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.50
Top Ring Surface Treatment PLASMA MOLY
GTIN 00075538402299