Hastings 3.780"/96.00 mm Bore +.030" Over Size, 8-Cylinder Ring Set with 1.20 mm Top Ring, 1.50 mm Second Ring and a First Oil Ring is 2.50 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 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
2015-2020 Chevrolet Cheyenne
2014-2018 Chevrolet Silverado 1500
2021-2023 Chevrolet Silverado 1500
2019 Chevrolet Silverado 1500 LD
2022 Chevrolet Silverado 1500 LTD
2015-2020 Chevrolet Suburban
2022-2023 Chevrolet Suburban
2015-2023 Chevrolet Tahoe
2014-2019 GMC Sierra 1500
2021-2023 GMC Sierra 1500
2019 GMC Sierra 1500 Limited
2022 GMC Sierra 1500 Limited
2015-2023 GMC Yukon
2015-2023 GMC Yukon XL
Attributes
1st Oil Groove 2.50
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.50
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2M5380.030
California Proposition 65 No
Engborein 3.780
Engboremetric 96.00
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