Difficulties in parts search?

Parts list

Difficulties in parts search?

	Description	OEM Part #	Price
0815661233	0815661233 0815661233 Bolt-hexagon	0815661233	—
0815661233	0815661233 0815661233 Bolt-hexagon	0815661233	—
20800E	20800E 20805-54C00 Plug 9710--01 ~ 9811--01; SR20DE.(G+X).AT	20805-54C00	US $4.46
20802	20802 2080069F26 Three Way Catalyst 9710--01 ~ 9811--01; SR20DE.(G+X).AT; ﾖｺﾊﾏﾄﾞﾁﾗﾃﾞﾓｼﾖｳｶ	2080069F26	US $1,610
20802	20802 0112100751 BOLT 9710--01 ~ 9811--01; SR20DE.(G+X).AT	0112100751	from US $0.57
20802F	20802F 0112100751 BOLT 9710--01 ~ 9811--01; SR20DE.(G+X).AT	0112100751	from US $0.57
20802F	20802F 0112100751 BOLT 9710--01 ~ 9811--01; SR20DE.(G+X).AT	0112100751	from US $0.57
20851	20851 2085340F11 Lower Shelter 9811--01 ~ 9907--01; SR20DE	2085340F11	US $32.11
20851	20851 2085371L11 Lower Shelter 9710--01 ~ 9811--01; SR20DE.(G+X).AT	2085371L11	from US $32.85
	replacement
20851	20851 20692-24U0A Gasket-Exhaust 9710--01 ~ 9811--01; SR20DE.(G+X).AT	20692-24U0A	from US $13.18

Catalyst converter (1998-11-01 ~ 1999-07-01; SR20DE) Diagram Nissan R`NESSA Japan 7797979-620263