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10 bestIridium Spark Plugsof November 2025

112M consumers helped this year.

15% off

1

NGK Spark Plug BR9ECMIX Iridium IX 2707
NGK Spark Plug BR9ECMIX Iridium IX 2707

NGK

9.9

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2

Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack)
Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack)

Autolite

9.8

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15% off

3

Bosch ZR7SI332S (N48) - Spark Plugs Double Iridium - Set of 4
Bosch ZR7SI332S (N48) - Spark Plugs Double Iridium - Set of 4

Bosch

9.6

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4

ACDelco GM Original Equipment 41-110 Iridium Spark Plug
ACDelco GM Original Equipment 41-110 Iridium Spark Plug

ACDelco

9.4

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5

Bosch ZQR8SI302 - Spark Plugs Iridium - 1 piece
Bosch ZQR8SI302 - Spark Plugs Iridium - 1 piece

Bosch Automotive

9.2

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DENSO # 3444 Iridium LONG LIFE Spark Plugs -- SC20HR11 ----- 4 PCS * NEW *

DENSO # 3444 Iridium LONG LIFE Spark Plugs -- SC20HR11 ----- 4 PCS * NEW *

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NGK (6418-4PK) Iridium IX Spark Plug, (Box of 4)

NGK (6418-4PK) Iridium IX Spark Plug, (Box of 4)

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NGK Spark Plug DR8EIX Iridium IX 6681

NGK Spark Plug DR8EIX Iridium IX 6681

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4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20

4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20

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6

NGK Spark Plug SILZKGR8B8S 94201 Iridium IX
NGK Spark Plug SILZKGR8B8S 94201 Iridium IX

NGK

9.0

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7

ACDelco 41-993 Professional Iridium Spark Plug (Pack of 4)
ACDelco 41-993 Professional Iridium Spark Plug (Pack of 4)

ACDelco

8.7

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19% off

8

NGK Spark Plug BPR6EIX Iridium IX 6637
NGK Spark Plug BPR6EIX Iridium IX 6637

NGK

8.5

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15% off

9

NGK Spark Plug BKR6EIX-11 Iridium IX 3764
NGK Spark Plug BKR6EIX-11 Iridium IX 3764

NGK

8.2

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10

Bosch 9735 OE Fine Wire Iridium Spark Plug - Pack of 10
Bosch 9735 OE Fine Wire Iridium Spark Plug - Pack of 10

Bosch

8.0

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