Hastings 3.4375" Standard Bore, Single Cylinder Ring Set with 5/64" Top Ring, 5/64" Second Ring and a First Oil Ring is 3/16".
This Hastings 6-Cylinder Ring Set has a top ring manufactured from grey iron with triple chrome ring surface treatment and a second ring manufactured from grey 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
1957-1959 Dodge D300 Pickup
1960 Dodge D300 Series
1955-1960 Dodge Truck
1957-1959 Dodge W300 Pickup
1960 Dodge W300 Series
1960 Dodge Wm300 Power Wagon
Attributes
1st Oil Groove 3/16
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 5/64
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2C663
California Proposition 65 No
Engborein 3.4375
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 5/64
GTIN 00075538032298