Hastings 2.874"/73.00 mm Bore +.020" Over Size, 4-Cylinder Ring Set with 2.00 mm Top Ring, 2.00 mm Second Ring and a First Oil Ring is 4.00 mm.
This Hastings 4-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
1976-1977 Mazda Mizer
1971-1973 Nissan 1200
1961-1965 Nissan 320
1963-1965 Nissan 410
1965-1967 Nissan 411
1965-1968 Nissan 520 Pickup
1968-1969 Nissan 521 Pickup
1970-1973 Nissan B110
1974 Nissan B210
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 6714.020
California Proposition 65 No
Engborein 2.874
Engboremetric 73.00
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 00075538076070