Hastings 3.646"/92.60 mm Bore +.040" Over Size, 4-Cylinder Ring Set with 1.50 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
1996 Honda Passport
1989-1994 Isuzu Amigo
1988-1995 Isuzu Pickup
1988-1991 Isuzu Trooper
Attributes
1st Oil Groove 4.00
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.50
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 4637S.040
California Proposition 65 No
Engborein 3.646
Engboremetric 92.60
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.50
Top Ring Surface Treatment PHOSPHATE
GTIN 00075538163138