Hastings 3.500"/88.90 mm Standard Bore, Single Cylinder Ring Set with 1.60 mm Top Ring, 1.60 mm Second Ring and a First Oil Ring is 4.75 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
1987-1988 Land Rover Range Rover
Attributes
1st Oil Groove 4.75
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.60
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 4289S
California Proposition 65 No
Engborein 3.500
Engboremetric 88.90
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.60
Top Ring Surface Treatment PHOSPHATE
GTIN 00075538079781