Set of four (4) fuel rail lower cushion seal rings (aka rubber insulator) for Nissan Xterra, Frontier & Altima 2.4L from 1996 thru 2002- see table below. This lower insulator is located between the fuel injector and the manifold. OEM quality made in Japan. OEM part number is 16636-5E512. Free shipping to USA. Shipping cost to Canada is $8.00. Shipping cost to all other countries is $12.00. Paypal accepted. 

Nissan Altima, Xterra, and Frontier with the 2.4L 4-cyl (KA24DE) engine
1996-1999 Nissan Altima 4-cyl1997 Nissan Altima GXE / SE / GLE / XE1998-1999 Nissan Frontier 4-cyl1999-2002 Nissan Frontier 4-cyl2000-2002 Nissan Xterra 4-cyl