Denso Iridium Spark Plugs

Six times harder than platinum, iridium doesn't melt in temperatures up to 4,000 deg F.Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves.360 deg laser welding of electrode provides a seal that resists wear even in the worst conditions.Ground electrode features a tapered cut and U-groove that form a large volume area for the flame's center.Use NGK reference chart to order and stock these plugs.

Iridium Plug Part Number	NGK Reference
IK16	BKR5E, ZFR5F
IW16	B6L, BR5ES, BPR5ES, BP5ES-11, BPR5ES-11, BPR5EVX-11
IW20	BP6ES, BPR6ES, BPR6ES-11, BPR6EVX-11, BP6EV
IU22	C7E, CR7E
IUF22	C7HSA, CR7HSA, C7HVX
IW22	BP7ES, BPR7ES, BPR7ES-11, BP7EVX
IWF22	B7HS, BR7HS, BP7HS, BPR7HS, B7HVX, BP7EVX
IX22	D7EA, DR7EA, DR7ES, D7EVX
IX22B	DP7EA-9, DPR7EA-9, DPR7EVX-9, PJR7A
IU24	C8E, CR8E, CR8EVX
IU24A	CR8EK
IW24	B8ES, BR8ES, BR8ES-11, B8EG, BR8EG, BR8EGV, B8EV, BR8EVX
IWF24	B8HS, BR8HS, B8HV, B8HVX
IX24	D8EA, DR8EA, DR8ESL, D8EVX
IX24B	DP8EA-9, DPR8EA-9, DP8EVX-9, DPR8EVX-9
IU27	C9E, CR9E, CR9EVX
IU27A	CR9EK
IUH27	CR9EH-9, CR9EHVX-9
IW27	B9ES, BR9ES, B9EG, BR9EG, B9EGV, B9EV, BR9EV, B9EVX, BR9EVX, BR9ECS
IX27	D9EA, DR9EA, JR9B
IX27B	DP9EA-9, DPR9EA-9, DP9EA-9, DPR9EVX-9
IU31A	CR10EK
IW31	B10EG, B10EGV, B10ES, B10EV, BPR10EVX, BR10ECS, BR10EG, BR10ES, BR10EV, BR10EYA