NGK 6213 SILMAR9A9S Iridium Spark Plug for 2009-2026 Honda CRF450 Series

Vehicle Fitment

• 2009-2026 Honda CRF450R (450 cc, sport motocross, off-road)
• 2017-2026 Honda CRF450RX (450 cc, rally/off-road)
• 2015-2026 Honda CRF450X (450 cc, trail/enduro)
• 2019-2026 Honda CRF450L (450 cc, dual-sport)
• 2019-2026 Honda CRF450RWE (450 cc, works edition)
• 2021-2026 Honda CRF450RL (450 cc, rally/dual-sport)

Features

• Laser-welded iridium center electrode for long service life
• Platinum-tipped ground electrode for reduced wear
• Fine-wire iridium tip reduces ignition voltage requirements
• Trivalent metal plating improves corrosion & anti-seize protection
• High-grade ceramic insulator for stable spark and heat resistance
• Triple gasket sealing prevents combustion gas leakage
• Optimized electrode gap supports efficient combustion
• Resistor design reduces electrical interference

Specifications

• NGK Part Number: 6213 / SILMAR9A9S
• Thread Size: 10 mm x 1.0
• Reach (Thread Length): 26.5 mm
• Heat Range: NGK 9 (cold-type for high load)
• Seat Type: Flat with gasket
• Center Electrode: Iridium
• Ground Electrode: Platinum-tipped
• Pre-Gap: ~0.9 mm (factory set)
• Resistance: ~5000 Ω (resistor plug)

Included Components

• 1x NGK 6213 SILMAR9A9S Laser Iridium Spark Plug

Product Description

The NGK 6213 SILMAR9A9S Laser Iridium Spark Plug is a high-performance ignition component designed for modern Honda CRF450 motocross, rally, and dual-sport motorcycles. Its laser-welded iridium center electrode delivers a consistent and powerful spark while resisting wear significantly longer than conventional plugs. The platinum-tipped ground electrode enhances durability under extreme loads and high engine speeds - ideal for off-road and competition use.

Optimized for both high-revving and demanding environments, this spark plug offers improved throttle response, easier starting, and efficient combustion. The fine-wire electrode design reduces voltage requirements and helps ensure smoother idle and performance even under varying terrain and conditions. Install this plug per your motorcycle's service manual and verify gap and torque specifications before use. Fitment confirmed through 2026 for listed Honda CRF450 models.