Spark plug · NGK
Equivalents for the NGK spark plug 1620 4122
Meet the NGK 1620 4122 spark plug. Find its 58 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
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What can replace a NGK 1620 4122 spark plug?
The NGK 1620 4122 is interchangeable with: NGK BR7HS, Bosch WR 5 AC, Champion RL78C, NGK BR8HS, Bosch WR 6 AC, Champion QL78C. 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.