Description
The NGK DPR6EA-9 is a standard nickel spark plug designed for dependable OE performance in motorcycles and powersports applications. Built with a copper core and triple-seal construction, it ensures efficient heat transfer, reliable ignition, and long-lasting durability under typical riding conditions.
Key Features
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OEM-equivalent nickel design for consistent, reliable performance
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0.9 mm pre-gapped for quick installation
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98% copper core for superior heat dissipation
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Triple gasket seal prevents combustion gas leakage
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Trivalent metal plating resists corrosion and seizing
- Ideal for engines originally equipped with nickel spark plugs
Specifications
General
- Part Number: DPR6EA-9
- Stock Number: 5531
- Heat Range: 6
- Resistor: Yes (5000 Ohms)
- Pre-Gap: 0.9 mm
Shell
- Thread Size: M12 x 1.25
- Seat Type: Flat (gasket)
- Reach: 19.0 mm
- Hex Size: 18 mm
- Terminal Type: Stud
Electrodes
- Center Electrode: Nickel (copper core)
- Ground Electrode: Nickel
- Configuration: J-gap
- Projection: Mid projection
Fitment Highlights
Honda
- VT750 Shadow Aero (2004–2009)
- VT750 Shadow ACE (1998–2003)
- VT750 Shadow Spirit (2007–2009)
Kawasaki
- Vulcan 1500 series (1999–2008)
- Vulcan 1600 series (2003–2008)
Suzuki
- Boulevard M95 (2005)
- VZ1600 Marauder (2004)
Triumph
- Thunderbird series (2010–2017)
Performance Notes
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Heat range 6: slightly hotter than DPR7EA-9, better for cooler-running engines or lighter-duty riding
- Typical service life: ~20,000–30,000 miles
- Best used as a direct OE replacement, not an upgrade over platinum/iridium plugs
- Suitable for cruisers, touring bikes, and mid-displacement engines
