Description
The NGK CR5HSB (Stock #6535) is a compact, resistor-type nickel spark plug designed primarily for small engines and power equipment. Built with NGK’s proven materials and construction, it delivers reliable ignition, durability, and consistent performance in demanding environments like generators, trimmers, and small Honda engines.
Key Features
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OEM-quality nickel electrode for dependable ignition
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5kΩ resistor reduces electrical interference (RFI/EMI)
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Copper core improves heat dissipation and conductivity
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Trivalent plating resists corrosion and prevents seizing
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Compact design ideal for small engine applications
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Triple gasket sealing prevents combustion leakage
Specifications
General
- Part Number: CR5HSB
- Stock Number: 6535
- Heat Range: 5
- Resistor: Yes (5k Ohm)
- Gap: 0.7 mm (.028")
Shell
- Thread Size: M10 x 1.0
- Reach: 12.7 mm (1/2")
- Seat Type: Gasket
- Hex Size: 5/8" (16 mm)
- Terminal Type: Solid
- Overall Height: ISO
Electrodes
- Center Electrode: Nickel (2.5 mm)
- Ground Electrode: Standard nickel
- Projection: Non-projected
- Configuration: J-gap
Common Applications
Honda Small Engines
- GX22, GX31, GX50, GXH50, GX100U
- GXV50 / GXV57U
Generators
- Honda EU1000i, EB2000i, EX700C
- Generac iX2000
Outdoor Power Equipment
- Tillers: Honda FG100, Solo 501/502
- Trimmers/Brush Cutters: Honda HHT22S, UMK422/431
- Edgers: Honda HHE31CA
Water Pumps
Marine
Performance Notes
- Ideal for small displacement engines requiring compact plugs
- Designed for ~30,000-mile (or equivalent hours) service life
- Always verify gap and torque specs before installation
- Best used where resistor plugs are required to protect electronics