Hastings 3.504"/89.00 mm Bore +.020"/.50 mm Over Size, Single Cylinder Ring Set with 2.00 mm Top Ring, 2.00 mm Second Ring and a First Oil Ring is 3.00 mm.
This Hastings Single Cylinder Ring Set has a top ring manufactured from steel with chrome surface treatment, a second ring not described or ring surface treatment. The 1st oil control ring is manufactured of stainless steel with a nitrided ring surface treatment.

Application Summary:

Year Make/Model
2008-2009 Nissan Cabstar
2008-2009 Nissan Cabstar E
2009-2010 Nissan NP300
Attributes
1st Oil Groove 3.00
1st Oil Ring Material STAINLESS STEEL
2nd Groove 2.00
Alternate Part Number 2D7531S.50
California Proposition 65 No
Engborein 3.504
Engboremetric 89.00
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 CHROME
GTIN 00075538231493