Hastings 3.386"/86.00 mm Standard Bore, Single Cylinder Ring Set with 1.75 mm Top Ring, 1.50 mm Second Ring and a First Oil Ring is 4.00 mm.
This Hastings Single Cylinder Ring Set has a top ring manufactured from grey iron with phosphate 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
1978-1980 Subaru Brat
1976-1983 Subaru DL
1979 Subaru FE
1976-1979 Subaru GF
1979-1980 Subaru GL
1980 Subaru GLF
1977-1983 Subaru Standard
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 5364S
California Proposition 65 No
Engborein 3.622
Engboremetric 92.00
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 PHOSPHATE
GTIN 00075538161875