Denso 3421 - Alternative spark plugs

There are 10 replacement spark plugs for Denso 3421. The cross references are for general reference only, please check specifications for your application.

Compatible plug on Amazon

Set (12pcs) Denso Iridium Long Life Spark Plugs Stock 3421 Iridium Core .043
Set (12pcs) Denso Iridium Long Life Spark Plugs Stock 3421 Iridium Core .043"(1.1mm) Gap Size
113.40$

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Denso 3421 replacement spark plugs

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network and Amazon Associates.

Replacement spark plugs for Denso 3421 on Amazon

Denso 3421 Spark Plug
Denso 3421 Spark Plug
USD 13.99
DENSO ---SK20HR11---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
DENSO ---SK20HR11---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
USD 72.52
Set (8pcs) Denso Iridium Long Life Spark Plugs Stock 3421 Iridium Core .043
Set (8pcs) Denso Iridium Long Life Spark Plugs Stock 3421 Iridium Core .043"(1.1mm) Gap Size
USD 94.67
DENSO -SK20HR11- IRIDIUM PLATINUM power pack Spark Plugs - # 3421-4 PCS * NEW *
DENSO -SK20HR11- IRIDIUM PLATINUM power pack Spark Plugs - # 3421-4 PCS * NEW *
USD 49.63
Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug
Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug
USD 13.99
8PCS Spark Plug Replaces For Sequoia GX460 128i Tundra Denso 3421 90919-01191
8PCS Spark Plug Replaces For Sequoia GX460 128i Tundra Denso 3421 90919-01191
USD 89.10
SK20HR11 3421 Iridium Spark Plugs Replacement For Lexus GX460 Toyota Benz Tundra SET (8)
SK20HR11 3421 Iridium Spark Plugs Replacement For Lexus GX460 Toyota Benz Tundra SET (8)
USD 45.55
Set (12pcs) Denso Iridium Long Life Spark Plugs Stock 3421 Iridium Core .043
Set (12pcs) Denso Iridium Long Life Spark Plugs Stock 3421 Iridium Core .043"(1.1mm) Gap Size
USD 113.40
NGK 1959 PLFR6C-10G Spark Plug (Pack of 1)
NGK 1959 PLFR6C-10G Spark Plug (Pack of 1)
USD 19.66
NGK Laser Platinum Spark Plug PLFR6C-10G (6 Pack) for SAAB 9-3 TURBO X 2008-2008 2.8L/2792cc
NGK Laser Platinum Spark Plug PLFR6C-10G (6 Pack) for SAAB 9-3 TURBO X 2008-2008 2.8L/2792cc
USD 80.88
NGK Laser Platinum Spark Plug PLFR6C-10G (6 Pack) for SAAB 9-3 AERO 2006-2009 2.8L/2792cc
NGK Laser Platinum Spark Plug PLFR6C-10G (6 Pack) for SAAB 9-3 AERO 2006-2009 2.8L/2792cc
USD 85.95
NGK Spark Plug Laser Platinum PLFR6C-10G
NGK Spark Plug Laser Platinum PLFR6C-10G
USD 18.80
NGK Laser Platinum Spark Plug PLFR6C-10G (6 Pack) for SAAB 9-3 AERO XWD 2008-2009 2.8L/2792cc
NGK Laser Platinum Spark Plug PLFR6C-10G (6 Pack) for SAAB 9-3 AERO XWD 2008-2009 2.8L/2792cc
USD 85.93
NGK (7913) SILFR6A Spark Plug - Pack of 4
NGK (7913) SILFR6A Spark Plug - Pack of 4
USD 51.44
NGK (3588) ILFR6A Laser Iridium Spark Plug, Pack of 1
NGK (3588) ILFR6A Laser Iridium Spark Plug, Pack of 1
USD 17.52
NGK (6481) ILFR6B Spark Plug - Pack of 4
NGK (6481) ILFR6B Spark Plug - Pack of 4
USD 61.36
NGK Spark Plug ILFR6B 6481 Pack of 6
NGK Spark Plug ILFR6B 6481 Pack of 6
USD 89.86
NGK Laser Iridium Spark Plug ILFR6B (6 Pack) Compatible With VOLVO V70 3.2 2008-2010 3.2L/3192cc
NGK Laser Iridium Spark Plug ILFR6B (6 Pack) Compatible With VOLVO V70 3.2 2008-2010 3.2L/3192cc
USD 85.78
NGK Spark Plug ILFR6B- Set of 4
NGK Spark Plug ILFR6B- Set of 4
USD 54.34
For 6Pcs FR7NPP332 Spark Plugs Platinum BOSCH Compatible For BMW X3 X5 E60 E83 E85 E90 N51 N52
For 6Pcs FR7NPP332 Spark Plugs Platinum BOSCH Compatible For BMW X3 X5 E60 E83 E85 E90 N51 N52
USD 168.26

Replacement spark plugs for Denso 3421 on Ebay

6PC DENSO IRIDIUM POWER SK20HR11 3421 LONG LIFE SPARK PLUGS Kit FOR TOYOTA LEXUS
6PC DENSO IRIDIUM POWER SK20HR11 3421 LONG LIFE SPARK PLUGS Kit FOR TOYOTA LEXUS
USD 56.92
Genuine DENSO IRIDIUM LONG LIFE Spark Plugs 3421 SK20HR11 Set of 5
Genuine DENSO IRIDIUM LONG LIFE Spark Plugs 3421 SK20HR11 Set of 5
USD 62.99
Iridium Long-Life Spark Plug DENSO SK20HR11 3421
Iridium Long-Life Spark Plug DENSO SK20HR11 3421
USD 17.49
Iridium Spark Plug DENSO 3421
Iridium Spark Plug DENSO 3421
USD 22.36
2 pc NGK 4904 ILFR6T11 Laser Iridium Spark Plugs for SK20HRA11 SK20HR11 ds
2 pc NGK 4904 ILFR6T11 Laser Iridium Spark Plugs for SK20HRA11 SK20HR11 ds
USD 24.13
2 4-Packs DENSO IRIDIUM LONG LIFE Spark Plugs 3421 SK20HR11 - New
2 4-Packs DENSO IRIDIUM LONG LIFE Spark Plugs 3421 SK20HR11 - New
USD 69.00
Spark Plug DENSO 3421
Spark Plug DENSO 3421
USD 14.04
8 Pack Denso Iridium Long Life Spark Plugs for 2008-2016 TOYOTA SEQUOIA V8-5.7L
8 Pack Denso Iridium Long Life Spark Plugs for 2008-2016 TOYOTA SEQUOIA V8-5.7L
USD 82.75
DENSO Iridium Long Life Spark Plug #3421 SK20HR11 NEW
DENSO Iridium Long Life Spark Plug #3421 SK20HR11 NEW
USD 7.00
4 Pack Denso Iridium Long Life Spark Plugs for 2006 HONDA CIVIC L4-1.3L
4 Pack Denso Iridium Long Life Spark Plugs for 2006 HONDA CIVIC L4-1.3L
USD 44.75
DENSO 3421 SK20HR11 IRIDIUM LONG LIFE SPARK PLUG TACOMA TUNDRA VOLVO
DENSO 3421 SK20HR11 IRIDIUM LONG LIFE SPARK PLUG TACOMA TUNDRA VOLVO
USD 11.59
8-Pieces DENSO SK20HR11 Iridium Long Life Spark Plugs For BMW Toyota Volvo Saab
8-Pieces DENSO SK20HR11 Iridium Long Life Spark Plugs For BMW Toyota Volvo Saab
USD 85.95

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