| W4A5 | Ignition / Spark Plugs | 23 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs |
| W4AC | Ignition / Spark Plugs | 23 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs |
| W4AP | Ignition / Spark Plugs | 11 xrefs from BOSCH, DENSO +1 more3 mfgs |
| W4AS | Ignition / Spark Plugs | 11 xrefs from BOSCH, DENSO +1 more3 mfgs |
| W4C | Ignition / Spark Plugs | 22 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·3 OEM xrefs |
| W4C1 | Ignition / Spark Plugs | 22 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·3 OEM xrefs |
| W4C2 | Ignition / Spark Plugs | 24 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·3 OEM xrefs |
| W4C3 | Ignition / Spark Plugs | 45 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W4CC | Ignition / Spark Plugs | 22 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·3 OEM xrefs |
| W4CP | Ignition / Spark Plugs | 18 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs |
| W4CS | Ignition / Spark Plugs | 18 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs |
| W4DP | Ignition / Spark Plugs | 16 xrefs from ACDELCO, AUTOLITE +4 more6 mfgs·1 OEM xrefs |
| W4DP0 | Ignition / Spark Plugs | 10 xrefs from BOSCH, CHAMPION +2 more4 mfgs |
| W4E2 | Ignition / Spark Plugs | 28 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W5A | Ignition / Spark Plugs | 45 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W5AC | Ignition / Spark Plugs | 45 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W5AP | Ignition / Spark Plugs | 9 xrefs from AUTOLITE, BOSCH +2 more4 mfgs |
| W5AS | Ignition / Spark Plugs | 9 xrefs from AUTOLITE, BOSCH +2 more4 mfgs |
| W5B | Ignition / Spark Plugs | 13 xrefs from BOSCH, CHAMPION +2 more4 mfgs |
| W5BC | Ignition / Spark Plugs | 13 xrefs from BOSCH, CHAMPION +2 more4 mfgs |
| W5BP | Ignition / Spark Plugs | 3 xrefs from DENSO, NGK2 mfgs·1 OEM xrefs |
| W5C | Ignition / Spark Plugs | 24 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·3 OEM xrefs |
| W5CC | Ignition / Spark Plugs | 6 xrefs from AUTOLITE, CHAMPION +1 more3 mfgs·1 OEM xrefs |
| W5CCX | Ignition / Spark Plugs | 4 xrefs from DENSO, NGK2 mfgs |
| W5CP | Ignition / Spark Plugs | 7 xrefs from AUTOLITE, BOSCH +2 more4 mfgs |
| W5CS | Ignition / Spark Plugs | 7 xrefs from AUTOLITE, BOSCH +2 more4 mfgs |
| W5D | Ignition / Spark Plugs | 24 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W5D1 | Ignition / Spark Plugs | 24 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W5DC | Ignition / Spark Plugs | 24 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W5DC0 | Ignition / Spark Plugs | 24 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W5DCX | Ignition / Spark Plugs | 5 xrefs from DENSO, NGK2 mfgs |
| W5DP | Ignition / Spark Plugs | 16 xrefs from ACDELCO, AUTOLITE +4 more6 mfgs·1 OEM xrefs |
| W5DP0 | Ignition / Spark Plugs | 10 xrefs from BOSCH, CHAMPION +2 more4 mfgs |
| W5DTC | Ignition / Spark Plugs | 7 xrefs from BOSCH, CHAMPION +2 more4 mfgs·2 OEM xrefs |
| W5EC | Ignition / Spark Plugs | 28 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W6AS | Ignition / Spark Plugs | 1 xrefs from NGK1 mfg |
| W6B | Ignition / Spark Plugs | 31 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W6BC | Ignition / Spark Plugs | 31 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
| W6BP | Ignition / Spark Plugs | 1 xrefs from NGK1 mfg |
| W6D1 | Ignition / Spark Plugs | 41 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·6 OEM xrefs |
| W6DC | Ignition / Spark Plugs | 41 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·6 OEM xrefs |
| W6DC0 | Ignition / Spark Plugs | 41 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·6 OEM xrefs |
| W6DCX | Ignition / Spark Plugs | 1 xrefs from NGK1 mfg |
| W6DP | Ignition / Spark Plugs | 38 xrefs from AUTOLITE, BOSCH +3 more5 mfgs·2 OEM xrefs |
| W6DP0 | Ignition / Spark Plugs | 38 xrefs from AUTOLITE, BOSCH +3 more5 mfgs·2 OEM xrefs |
| W6DPO | Ignition / Spark Plugs | 23 xrefs from AUTOLITE, BOSCH +3 more5 mfgs·1 OEM xrefs |
| W6DPX | Ignition / Spark Plugs | 16 xrefs from BOSCH, CHAMPION +3 more5 mfgs |
| W6DTC | Ignition / Spark Plugs | 7 xrefs from BOSCH, CHAMPION +2 more4 mfgs·2 OEM xrefs |
| W6LTCR | Ignition / Spark Plugs | 10 xrefs from AUTOLITE, BOSCH +2 more4 mfgs·2 OEM xrefs |
| W7A | Ignition / Spark Plugs | 37 xrefs from ACDELCO, AUTOLITE +5 more7 mfgs·1 OEM xrefs |
