Product Details
OE-fitment iridium plug used by major motorcycle and ATV manufacturers — laser-welded platinum disc on the ground electrode plus an iridium center tip for the longest service life NGK builds.
- Iridium center electrode plus a laser-welded platinum pad on the ground electrode — both rare metals erode much slower than nickel, so the gap stays stable for the full service interval.
- Fine-wire center electrode (typically 0.6mm) needs less voltage to fire and ignites the mixture more reliably at idle and on a cold start.
- Specified as original equipment on many late-model fuel-injected motorcycles, ATVs and personal watercraft — direct replacement, no gap or heat-range change.
- Trivalent plating on the metal shell resists corrosion in salt air and prevents thread seizure in aluminum heads.
- Sold individually — match the part number on the plug body to the OE call-out in your owner's manual.
Spec: CR8EIB-10
Fitment
- Suzuki RM-Z 250 RJ42A 2014–2026
- Suzuki RM-Z 450 RL41C 2005–2006
- Suzuki RMX 450 Z PL41A 2010–2026
Specifications
The NGK 4948 is a spark plug verified to fit 3 motorcycles including Suzuki RM-Z 250 RJ42A; Suzuki RM-Z 450 RL41C; Suzuki RMX 450 Z PL41A. It matches an OE oem spark plug CR8EIB-10 and spark plug gap 1 mm.
| Center Electrode Material | Iridium |
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| Ground Electrode Material | Platinum |
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| Center Electrode Diameter | 0.6 mm |
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| Shell Plating | Trivalent |
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| OEM Spark Plug | CR8EIB-10 |
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| Spark Plug Gap | 1 mm |
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Verified from Garamoto’s catalog & fitment data.