NGK 92743 DIMR8C10 Laser Iridium Spark Plug for 2007-2024 Suzuki RM-Z450 450cc

Vehicle Fitment

• 2007-2024 Suzuki RM-Z450 (450cc, 4-Stroke MX)

Fitment Notes

• OEM Suzuki cross-reference: 09482-00600
• Supersedes prior NGK part number DIMR8A10 - direct replacement
• 1 plug required per motorcycle
• Pre-gapped at 0.039"-0.040" (1.0mm); verify against your bike's service manual before installation
• No automotive fitment - off-road/motocross application only

Features

• Fine-wire laser-welded iridium center electrode for maximum ignitability under high-compression MX engine demands
• Platinum-tipped fine-wire ground electrode ensures even wear and consistent spark output
• Projected tip design optimizes combustion chamber flame propagation for peak 4-stroke performance
• Trivalent metal shell plating delivers superior anti-corrosion and anti-seizing protection
• Pure alumina silicate ceramic insulator provides superior strength and heat transfer under race conditions
• Triple seals prevent combustion gas leakage around the plug shell

Specifications

• NGK Part Number: DIMR8C10
• Thread Diameter: 10mm
• Thread Pitch: 1.0mm
• Reach: 19mm (3/4")
• Hex Size: 5/8" (16mm)
• Seat Type: Gasket (Flat)
• Terminal Type: Solid (Non-Removable Nut)
• Pre-Set Gap: 0.039"-0.040" (1.0mm)
• Center Electrode: Iridium Fine Wire (Projected)
• Ground Electrode: Platinum Fine Wire, Taper Cut
• Resistor Value: 5K Ohm
• Heat Range: 8
• Torque Spec - Cast Iron Head: 7.2-10.8 lb-ft
• Torque Spec - Aluminum Head: 7.2-8.7 lb-ft

Included Components

• 1x NGK DIMR8C10 Laser Iridium Spark Plug (92743)

Product Description

The NGK 92743 (DIMR8C10) is the OEM-specified Laser Iridium spark plug for the Suzuki RM-Z450 motocross bike across the full 2007-2024 production run. It directly supersedes the earlier DIMR8A10 and matches Suzuki OEM part number 09482-00600. One plug is required per motorcycle.

Engineered for the high-compression, high-revving demands of 450cc MX competition, the fine-wire iridium center electrode and projected tip design deliver reliable ignition and consistent combustion - critical for maintaining peak power output on the track. The plug installs as a direct drop-in replacement with no modifications required.