Major sparkplug product lineup
Cars & trucks plugs

Long-reach plug
- φ14×L26.5×
16
- TOYOTA

ISO-compatible small hex plug
- Compatible with ISO standards
* SKJ20DR-M11S with stainless steel gasket - φ14×L19×
16
- TOYOTA, and others

Small hex plug
- By reducing the hex size (16 mm), this plug is lighter in weight.
- φ14×L19×
16
- TOYOTA, and others

Extended shroud plug
- φ14×L19×
16
- HONDA

Extended plug
- KJ20CR11: no U-Groove
KJ20CR-U: with U-Groove - φ14×L19×
16
- MAZDA, MITSUBISHI

Extended plug
- The tip of the ground electrode has a taper-cut, and the center electrode is made finer for improved ignitability.
- φ14×L19×
16
- HONDA

Double-electrode semi-surface plug
- With this new supplementary gap, resistance to fouling is improved.
- φ14×L19×
20.6
- TOYOTA, DAIHATSU

Triple-electrode plug
- Durability is improved with three ground electrodes.
- φ14×L19×
16 (K22PB)
- AUDI / VW / CITROEN / FIAT / MERCEDES-BENZ / RENAULT

φ12 long-reach plug
- φ12×L26.5×
16
- DAIHATSU

φ12 plug
- By reducing the hex size (16 mm), this plug may be used in light vehicles. Thread diameter is 12 mm.
- φ12×L19×
16
- SUZUKI / MITSUBISHI

φ12 long-reach plug with 14 mm hex size
- φ12×L26.5×
14
- RENAULT

Taper seat plug
- This plug may be installed only in non-Japanese cars and has no gasket.
- φ14×L17.5×
16
- GM, Ford
Actual products may differ from images shown.