NGK stk 4421 - Alternative spark plugs

There are 16 replacement spark plugs for NGK stk 4421. The cross references are for general reference only, please check specifications for your application.

Compatible plug on Amazon

NGK V Power Resistor 4421 Spark Plug
NGK V Power Resistor 4421 Spark Plug
10.67$

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NGK stk 4421 replacement spark plugs

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Replacement spark plugs for NGK stk 4421 on Amazon

NGK V Power Resistor 4421 Spark Plug
NGK V Power Resistor 4421 Spark Plug
USD 10.67
Set (12pcs) Autolite Copper Core Spark Plugs Resistor Gasket Seat 14mm x 1.25 Thread 5184
Set (12pcs) Autolite Copper Core Spark Plugs Resistor Gasket Seat 14mm x 1.25 Thread 5184
USD 20.73
Autolite 5184 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)
Autolite 5184 Copper Resistor Automotive Replacement Spark Plugs (4 Pack)
USD 17.13
SupplyMount 5184 - Aftermarket Replacement Spark Plug Box of 4 Compatible with AUTOLITE
SupplyMount 5184 - Aftermarket Replacement Spark Plug Box of 4 Compatible with AUTOLITE
USD 30.00
Set (8pcs) Autolite Copper Core Spark Plugs Resistor Gasket Seat 14mm x 1.25 Thread 5184
Set (8pcs) Autolite Copper Core Spark Plugs Resistor Gasket Seat 14mm x 1.25 Thread 5184
USD 18.93
TORCH K5RTCU-11 U-Groove Spark Plug Replace for NGK BKR5ES-11, for BOSCH FR8DCX+, FR8DPX, for BERU
TORCH K5RTCU-11 U-Groove Spark Plug Replace for NGK BKR5ES-11, for BOSCH FR8DCX+, FR8DPX, for BERU
USD 11.59
TORCH 4 PCS Spark Plug K6RF-11, Copper Core, M14*1.25MM, Replaces NGK BKR6E-11, Bosch FR8DCX+,
TORCH 4 PCS Spark Plug K6RF-11, Copper Core, M14*1.25MM, Replaces NGK BKR6E-11, Bosch FR8DCX+,
USD 18.99
2PCS K6RTCU-11 TECHIE Spark Plug Replace for TORCH K6RF-11,for NGK BKR6E-11,for Champion
2PCS K6RTCU-11 TECHIE Spark Plug Replace for TORCH K6RF-11,for NGK BKR6E-11,for Champion
USD 15.99
PK2 TORCH K6RF-11 Spark Plug Replace for NGK BKR6E-11 Spark Plug, for Bosch FR8DCX+ Spark Plug, for
PK2 TORCH K6RF-11 Spark Plug Replace for NGK BKR6E-11 Spark Plug, for Bosch FR8DCX+ Spark Plug, for
USD 12.99
TORCH K5RTC-11 Spark Plug Replace for NGK BKR5E-11 Spark Plug, for CHAMPION 8071 OE013 RC12YC, for
TORCH K5RTC-11 Spark Plug Replace for NGK BKR5E-11 Spark Plug, for CHAMPION 8071 OE013 RC12YC, for
USD 15.99
4PK TORCH K5RTI-11 Spark Plug Replace for NGK 5464/BKR5EIX-11 Iridium IX Spark Plug, for Champion
4PK TORCH K5RTI-11 Spark Plug Replace for NGK 5464/BKR5EIX-11 Iridium IX Spark Plug, for Champion
USD 25.99
TORCH K6RF-11 Spark Plug, Replaces NGK BKR6E-11, Bosch FR8DCX+, Champion OE039, Denso K20PR-U11,
TORCH K6RF-11 Spark Plug, Replaces NGK BKR6E-11, Bosch FR8DCX+, Champion OE039, Denso K20PR-U11,
USD 6.59
TORCH K5RTC-11 Spark Plug Replace for NGK BKR5E-11 Spark Plug, for CHAMPION 8071 OE013 RC12YC, for
TORCH K5RTC-11 Spark Plug Replace for NGK BKR5E-11 Spark Plug, for CHAMPION 8071 OE013 RC12YC, for
USD 6.59
Replacement For Compatible With (Pack of 4) Champion Spark Plugs for AC Delco 41-610, 41610, AC5,
Replacement For Compatible With (Pack of 4) Champion Spark Plugs for AC Delco 41-610, 41610, AC5,
USD 33.98
BRAIN DUMP (Pack of 2) Compatible with Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS,
BRAIN DUMP (Pack of 2) Compatible with Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS,
USD 24.60
OEM (Pack of 2) Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS, FR5LS
OEM (Pack of 2) Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS, FR5LS
USD 13.49
ACDelco FR3LS Spark Plug, Pack of 1
ACDelco FR3LS Spark Plug, Pack of 1
USD 12.03
BRAIN DUMP (Pack of 8) Compatible with Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS,
BRAIN DUMP (Pack of 8) Compatible with Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS,
USD 57.42
OEM (Pack of 4) Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS, FR5LS
OEM (Pack of 4) Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS, FR5LS
USD 16.99
OEM (Pack of 8) Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS, FR5LS
OEM (Pack of 8) Champion Spark Plugs for AC Delco 41-610, 41610, AC5, FR3LS, FR5LS
USD 31.49

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