| Manufacture | Number |
| ACDelco | 213-1126 |
| ACDelco | 213-1274 |
| Bosch Automotive | 13362 |
| BWD | OS676 |
| CarQuest | 75-1627 |
| Delphi | ES10366 |
| Denso | 234-3085 |
| NGK | 24023 |
| Mazda | B6DC18861A9U |
| Standard Motor Products | SG155 |
| Year | Make | Model | Engine | Notes |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1994 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1996 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | Upstream; NTK is Original Equipment; |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1994 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1994 | Mazda | MX-3 | 1.8L 1845CC V6 GAS DOHC Naturally Aspirated | with California Emissions |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | |
| 1996 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | Calif. |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | Calif. |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | Calif. |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | Calif. |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | B1S2 SOHC OE MFR: NTK |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | B1S2 SOHC OE MFR: NTK |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | B1S2 SOHC OE MFR: NTK |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | B1S2 SOHC OE MFR: NTK |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | B1S2 SOHC OE MFR: NTK |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1994 | Mazda | MX-3 | 1.8L 1845CC V6 GAS DOHC Naturally Aspirated | California |
| 1994 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | California |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | California |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | California |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | California |
| Year | Make | Model | Engine | Trim | Notes |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Base Coupe 2-Door | Upstream; NTK is Original Equipment; |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | GS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1994 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Base Coupe 2-Door | Upstream; NTK is Original Equipment; |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | Precedia Coupe 2-Door | Upstream; NTK is Original Equipment; |
| 1996 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | Precedia Coupe 2-Door | Upstream; NTK is Original Equipment; |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | GS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | Upstream; NTK is Original Equipment; DOHC |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | Upstream; NTK is Original Equipment; |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | GS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | GS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | GS Sedan 4-Door | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1994 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Base Coupe 2-Door | |
| 1994 | Mazda | MX-3 | 1.8L 1845CC V6 GAS DOHC Naturally Aspirated | GS Coupe 2-Door | with California Emissions |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Base Coupe 2-Door | |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | Precedia Coupe 2-Door | |
| 1996 | Mazda | MX-3 | 1.6L 1597CC l4 GAS Naturally Aspirated | Precedia Coupe 2-Door | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | ES Sedan 4-Door | Calif. |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | Calif. |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | Calif. |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | Calif. |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | GS Sedan 4-Door | B1S2 SOHC OE MFR: NTK |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | B1S2 SOHC OE MFR: NTK |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | B1S2 SOHC OE MFR: NTK |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | B1S2 SOHC OE MFR: NTK |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | B1S2 SOHC OE MFR: NTK |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS SOHC Naturally Aspirated | GS Sedan 4-Door | |
| 1995 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | GS Sedan 4-Door | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1996 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | GS Sedan 4-Door | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | RS Sedan 4-Door | |
| 1997 | Kia | Sephia | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | LS Sedan 4-Door | |
| 1994 | Mazda | MX-3 | 1.8L 1845CC V6 GAS DOHC Naturally Aspirated | GS Coupe 2-Door | California |
| 1994 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Base Coupe 2-Door | |
| 1995 | Mazda | MX-3 | 1.6L 1597CC l4 GAS DOHC Naturally Aspirated | Base Coupe 2-Door | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1996 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1997 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1998 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | |
| 1995 | Mazda | Protege | 1.5L 1489CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | California |
| 1999 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | ES Sedan 4-Door | California |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | LX Sedan 4-Door | California |
| 1998 | Mazda | 626 | 2.0L 1991CC l4 GAS DOHC Naturally Aspirated | DX Sedan 4-Door | California |