NGK B4-LM - Alternative spark plugs

There are 16 replacement spark plugs for NGK B4-LM. The cross references are for general reference only, please check specifications for your application.

Specifications for NGK B4-LM

Thread diameter
14.0 mm
Thread reach
9.5 mm
Hex size
20.8 mm

NGK B4-LM replacement spark plugs

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Replacement spark plugs for NGK B4-LM on Amazon

#US Replace Parts (2-Pack) OEM Spark Plugs for Bosch W9EO for W14LM-U for 458 (datG.0825#10617)
#US Replace Parts (2-Pack) OEM Spark Plugs for Bosch W9EO for W14LM-U for 458 (datG.0825#10617)
USD 30.99
(1) Spark Plug Champion J17LM Replaces Autolite 456 Bosch W9EO NGK B4LM W14LM-U ;#by:ombwarehouse
(1) Spark Plug Champion J17LM Replaces Autolite 456 Bosch W9EO NGK B4LM W14LM-U ;#by:ombwarehouse
USD 8.35
OEM (2-Pack) Champion SPARK PLUGS for Bosch W9EO, Denso W14LM-U & Autolite 458
OEM (2-Pack) Champion SPARK PLUGS for Bosch W9EO, Denso W14LM-U & Autolite 458
USD 14.99
Spark Plug Fits Denso W14LMU Fits NGK B4LM Fits Torch GL4 Fits Champion J19LM Fits Autolite 458
Spark Plug Fits Denso W14LMU Fits NGK B4LM Fits Torch GL4 Fits Champion J19LM Fits Autolite 458
USD 13.99
AC DELCO SPARK PLUG Part # LM49
AC DELCO SPARK PLUG Part # LM49
USD 17.54
TORCH GL4C Spark Plug Replace for NGK B4LM, for BOSCH W9ECO, for Ariens 21533400 Snowblower Engine
TORCH GL4C Spark Plug Replace for NGK B4LM, for BOSCH W9ECO, for Ariens 21533400 Snowblower Engine
USD 6.99
OEM (2-Pack) Champion SPARK PLUGS for Bosch W9EO, Denso W14LM-U & Autolite 458
OEM (2-Pack) Champion SPARK PLUGS for Bosch W9EO, Denso W14LM-U & Autolite 458
USD 14.99
Compatible replacement for Denso U-Groove Spark Plug W14LM-U Replaces J19LM 458 B4LM
Compatible replacement for Denso U-Groove Spark Plug W14LM-U Replaces J19LM 458 B4LM
USD 10.95
Denso (6014) W14LM-U Spark Plugs, Pack of 4
Denso (6014) W14LM-U Spark Plugs, Pack of 4
USD 16.11
Part 2505 Spark Plug Compatible with Champion J17LM Replacement for Gl4, 2530, B4LM, W14LM-U,
Part 2505 Spark Plug Compatible with Champion J17LM Replacement for Gl4, 2530, B4LM, W14LM-U,
USD 21.52
Part 12544 Compatible with Denso Spark Plug W14LM-U Replacement for Gl4, 130-986, 9385, 5936,
Part 12544 Compatible with Denso Spark Plug W14LM-U Replacement for Gl4, 130-986, 9385, 5936,
USD 41.58
Champion RJ17LM-2pk Copper Plus Small Engine Spark Plug Stock # 856 (2 Pack)
Champion RJ17LM-2pk Copper Plus Small Engine Spark Plug Stock # 856 (2 Pack)
USD 9.41
Replacement for fits Qty 4: Spark Plug Fits Champion Replaces J17LM
Replacement for fits Qty 4: Spark Plug Fits Champion Replaces J17LM
USD 57.18
RHYTHM TESTAMENT for Champion Spark Plug J17LM SP2
RHYTHM TESTAMENT for Champion Spark Plug J17LM SP2
USD 11.86
Champion 845 J17LM Small Engine Spark Plug Pack of 8
Champion 845 J17LM Small Engine Spark Plug Pack of 8
USD 28.08
Part 2505 Spark Plug Compatible with Champion J17LM Replacement for Gl4, 2530, B4LM, W14LM-U,
Part 2505 Spark Plug Compatible with Champion J17LM Replacement for Gl4, 2530, B4LM, W14LM-U,
USD 21.52
CHAMPION Genuine Spark Plug J17LM
CHAMPION Genuine Spark Plug J17LM
USD 9.82
Replacement for fits Qty 6: Spark Plug Fits Champion Replaces J17LM
Replacement for fits Qty 6: Spark Plug Fits Champion Replaces J17LM
USD 53.88
BEAR FLAG EDITION for Champion Spark Plug J17LM 845 Champion 2 Plugs 2 Pack
BEAR FLAG EDITION for Champion Spark Plug J17LM 845 Champion 2 Plugs 2 Pack
USD 12.22
Qty 4: Spark Plug Fits Champion Replaces J17LM
Qty 4: Spark Plug Fits Champion Replaces J17LM
USD 16.99

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