NGK CR8EIX Iridium Spark Plug - Yamaha Raptor 700 / YZ450F / YFZ450 (Sold Each)

Premium Iridium Spark Plug for Yamaha

NGK CR8EIX iridium spark plug for Yamaha ATVs, dirt bikes, and sport bikes. Premium long-life performance with iridium center electrode.

Why NGK Iridium Plugs

✓ Iridium center electrode – lasts 3-4x longer than standard
✓ Better throttle response – improved ignitability
✓ Lower voltage requirement – easier starting
✓ Stable idle – consistent spark
✓ NGK quality – world's #1 spark plug brand

Does It Fit?

✅ **Yamaha ATVs:**
   • Raptor 700 (2006-2017)
   • YFZ450 / YFZ450R (2004-2017)
   • Grizzly 300 (2012-2013)

✅ **Yamaha Dirt Bikes:**
   • YZ250F, YZ450F, YZ426F, YZ400F
   • WR250F, WR450F, WR426F, WR400F

✅ **Yamaha Street Bikes:**
   • YZF-R3 (2015-2016)
   • FJR1300 series (2003-2010)
   • XJ600S, FZR400

See full fitment below ↓

Quick Specs

Part #: 4218 / 2-CR8EIX
UPC: 087295142189
Type: Iridium IX
Thread: 12mm
Reach: 19mm (3/4")
Hex: 16mm (5/8")
Gap: 0.8mm (0.031")
Weight: 0.05 lbs

⚠️ SOLD INDIVIDUALLY

**This listing is for ONE (1) spark plug.**

Most Yamaha 4-stroke engines use 1 plug.
Order quantity needed for your machine.

Iridium vs. Standard Plugs

**Iridium (this plug):**
- 3-4x longer lifespan
- Better performance
- Improved fuel economy
- Lower voltage required
- Higher cost

**Standard (CR8E):**
- Budget-friendly
- Good performance
- Shorter lifespan
- We also stock this - see related products

When to Replace

Replace spark plugs if you have:
- Hard starting
- Rough idle
- Poor throttle response
- Loss of power
- Fouled/worn electrode
- Maintenance interval (check manual)

Installation Notes

⚙️ Difficulty: Easy
🔧 Tools: Spark plug socket, gap tool
🔧 Gap: Pre-gapped to 0.8mm (verify before install)
💡 Torque: 18-22 lb-ft (consult service manual)

Pro Tip

💡 Always check spark plug gap before installation, even on new plugs. Use a feeler gauge to verify 0.8mm gap. Never drop or mishandle iridium plugs - the fine electrode can break.

What Else You'll Need

Consider ordering:
- Spark plug socket (16mm)
- Dielectric grease
- Anti-seize compound

Why NGK?

NGK is the world's leading spark plug manufacturer, trusted by OEMs and professionals worldwide. Every NGK plug is engineered for specific applications.

Questions?

📞 541-668-7503
📧 Support@dunegoonshop.info

Ships same day before 3pm EST ⚡
25+ in stock - Ready to ship!