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Start ShoppingFIRE POWER 21mm Hex Spark Plug Wrench - Durable Chrome Vanadium Tool for Dirt Bikes
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Description
Keep your dirt bike running smoothly with FIRE POWER's specialized spark plug wrench designed for precision and durability. This essential tool ensures effortless maintenance on 21mm thin-wall spark plugs while protecting delicate engine components.
Key Features
- Chrome Vanadium Steel Construction: Resists corrosion and wear for long-lasting performance in harsh off-road conditions.
- 21mm Hex Fit: Perfectly sized for Japanese 4-stroke dirt bike spark plug nuts with thin-wall design.
- Lightweight Design (0.2 lbs): Reduces hand fatigue during extended use without sacrificing strength.
- Compact 6.5" Length: Provides optimal leverage and maneuverability in tight engine compartments.
Why Choose This Product
Engineers for riders who demand reliability, this wrench combines precision engineering with durable materials to handle frequent use. Its specialized design prevents damage to spark plugs while ensuring secure grip, saving time and reducing maintenance headaches. Ideal for mechanics and enthusiasts working on popular models like Honda, Yamaha, and Kawasaki dirt bikes.
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Keep your dirt bike running smoothly with FIRE POWER's specialized spark plug wrench designed for precision and durability. This essential tool ensures effortless maintenance on 21mm thin-wall spark plugs while protecting delicate engine components.
Key Features
- Chrome Vanadium Steel Construction: Resists corrosion and wear for long-lasting performance in harsh off-road conditions.
- 21mm Hex Fit: Perfectly sized for Japanese 4-stroke dirt bike spark plug nuts with thin-wall design.
- Lightweight Design (0.2 lbs): Reduces hand fatigue during extended use without sacrificing strength.
- Compact 6.5" Length: Provides optimal leverage and maneuverability in tight engine compartments.
Why Choose This Product
Engineers for riders who demand reliability, this wrench combines precision engineering with durable materials to handle frequent use. Its specialized design prevents damage to spark plugs while ensuring secure grip, saving time and reducing maintenance headaches. Ideal for mechanics and enthusiasts working on popular models like Honda, Yamaha, and Kawasaki dirt bikes.
| SKU | GM14ED3FAD |
|---|---|
| MPN | 84-04113 |
| UPC/GTIN | 191361148774 |
| Brand | FIRE POWER |
| Category | Tools |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Honda | CRF250R/CRF450R series | 1985-2025 |
| Yamaha | YZF250/450, WR250F/450F | 1985-2025 |
| Kawasaki | KX250F/450F | 1985-2025 |
| Suzuki | RMZ250/450 | 1985-2025 |
| KTM | 250/450 SX-F | 1985-2025 |
Frequently Asked Questions
Yes, designed for most Japanese 4-stroke dirt bikes (Honda, Yamaha, Kawasaki, Suzuki) with 21mm thin-wall spark plug nuts from 1985-present.
No, it has a thin-wall design to fit recessed spark plug nuts without damaging the cylinder head.
Generally not needed; 2-strokes use standard nuts. Best for 4-strokes.
3/8-inch square drive, compatible with most ratchets.
Installation Guide
Difficulty
Easy
Est. Time
2 min
Tools Required
- 3/8" drive ratchet or breaker bar
Pro Tips
- Use with torque wrench for proper spark plug installation. Apply anti-seize to plug threads. Pair with spark plug gap tool.
Common Mistakes to Avoid
- Using a standard socket which won't fit thin-wall nut
- Over-torquing plug (max 12-18 ft-lbs)
Comparison vs Stock/OEM
Aftermarket specialty tool; OEM manuals recommend similar thin-wall wrench but don't include in toolkit
Improvements
- Compact, durable steel construction
- Precisely fits thin nuts without cylinder head damage
Considerations
- None; superior to generic sockets
Durability & Warranty
Expected Lifespan
Lifetime with proper use
Warranty
Limited lifetime manufacturer warranty against defects
Maintenance
Wipe clean after use; store dry
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