10 bestIridium Spark Plugsof February 2026
112M consumers helped this year.
15% off
1
Bosch ZR7SI332S (N48) - Spark Plugs Double Iridium - Set of 4
Bosch
9.8
2
NGK Spark Plug BR9ECMIX Iridium IX 2707
NGK
9.6
3
NGK Spark Plug SILZKGR8B8S 94201 Iridium IX
NGK
9.4
4
DENSO # 3444 Iridium LONG LIFE Spark Plugs -- SC20HR11 ----- 4 PCS * NEW *
Denso
9.2
5
NGK Spark Plug DR8EIX Iridium IX 6681
NGK
9.0
5% off
6
NGK Spark Plug BPR7EIX Iridium IX 4055
NGK
8.7
15% off
7
Bosch FR6KII332S - Spark Plugs Double Iridium - 1 piece
Bosch
8.5
15% off
8
Bosch FR6HI332 - Spark Plugs Double Iridium - 1 piece
Bosch
8.2
15% off
9
Bosch FR7KI332S - Spark Plugs Double Iridium - 1 piece
Bosch Automotive
7.9
10
Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack)
Autolite
7.6
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