Spark plug · NGK
Equivalents for the NGK spark plug 303
NGK 303 is an automotive spark plug. All its 375 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
Buy this spark plug NGK 303 — best retailers
Partner links: a purchase made through these links may earn us a commission, at no extra cost to you.
375 equivalents compatible with the NGK 303 spark plug
Filter by brand
- E
- L
- L
- L
- K
- K
- K
- L
- N
- J
- N
- J
- N
- L
- N
- J
- L
- N
- N
- L
- N
- N
- N
- X
- B
- P
- C
- C
- C
- A
- A
- H
- C
- C
- N
- X
- N
- X
- O
- O
- P
- P
- A
- A
- A
- C
- B
- L
- B
- E
- L
- N
- N
- O
- O
- O
- M
- A
- A
- H
- B
- E
- L
- I
- B
- H
- H
- H
- H
- P
- P
- P
- M
- M
- M
- C
- H
- H
- P
- H
- K
- K
- K
- K
- K
- M
- P
- L
- P
- P
- P
- P
- P
- P
- P
- P
- P
- P
- C
- G
- O
- P
- P
- P
- P
- A
- A
- B
- B
- O
- B
- B
- B
- S
- M
- M
- M
- T
- G
- O
- T
- T
- W
- K
- S
- K
- G
- K
- K
- K
- K
- K
- K
- K
- T
- F
- S
- F
- S
- K
- T
- T
- T
- T
- T
- T
- T
- T
- T
- T
No equivalent for this brand selection.
What can replace a NGK 303 spark plug?
The NGK 303 is interchangeable with: NGK BM6, Bosch W175T, Champion J91, NGK BM4A, NGK BM6A, NGK BM6AVP1. These spark plugs share the same mounting (thread, seat) and heat range.
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.