- Spark Plug
- Spark plug igniting the air-fuel mixture in the combustion chamber
- NGK "3821" - Not available
MAZDA - RX 7, RX-5
Additional numbers
NGK:
BR7EM
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NGK 3821 - Spark Plug MAZDA - RX 7, RX-5
- CHEVROLET
- C1500
- 4.3, LB4
- Engine
- Exhaust Emission Control
- Lambda Control
