Part #: 5122

NGK 5122 Spark Plug

Standard Spark Plug
7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Standard Spark Plug
Fitment: KTM, Husqvarna, Husaberg, Benelli, Suzuki, Yamaha, Honda, Ski-Doo, Kawasaki, Scorpion, Harley Davidson, Porsche, and MG, 250 XC, 300 XC, 250 XC-W, 300 XC-W, TE250, TE300, 300 XC-W Six Days, Freeride 250 R, Velvet 125, JR80, DS80, RT100, FL400R Pilot, Alpine, KLT200, Blizzard 5500 MX, KL250, KZ440D LTD Belt, Everest 500, Everest 500E, DT100, MX100, KE175, KZ440A LTD, KZ440B/G, FL250 Odyssey, Prelude, KLX250, KZ650B/F, KZ650E LTD, DS185, Accord, KZ400B, KZ400H LTD, KZ650C Custom, Whip 340PR, TY175, XL175, KZ200, KZ400A Deluxe, KZ400C Special, KZ400/D, KZ400S Special, RM80, TY250, TS250, SX125, RL250, GT550, GP246, 911, GT380, W2SS Commander, W2TT Commander, W1, and MGA
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Reliable Ignition with NGK Standard Spark Plug 5122

The NGK Standard Spark Plug 5122 is engineered to provide consistent ignition performance for select Honda and Porsche models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

  • Resistance: 5000 ohms for optimal electrical performance
  • Ground Electrode Tip and Configuration: Standard design with a single nickel core electrode
  • Center Electrode: Copper core with nickel tip for effective conductivity
  • Pre-Gap Size: .032 inches for proper spark gap
  • Thread Diameter: 14.00 mm with a reach of .75 inches
  • Hex Size: 13/16 inch for easy installation
  • Seat Type: Flat for secure sealing
  • Electrical Terminal: Removable nut for versatile connection
  • Manufacturer Heat Range: 7, suitable for moderate engine temperatures
  • Insulator Height: 55.00 mm for reliable insulation

About the NGK Standard Spark Plug Line

The Standard Spark Plug line by NGK offers dependable ignition components designed to meet OEM specifications. The 5122 part number belongs to this line, providing a balance of durability and performance for secondary ignition systems. These plugs are engineered to maintain consistent spark delivery and resist fouling under typical driving conditions.

Technical Details and Compatibility

This NGK spark plug features a nickel ground electrode and copper core center electrode, combining corrosion resistance with excellent electrical conductivity. The single ground electrode design and a pre-set gap of .032 inches ensure reliable ignition in engines requiring a heat range of 7. The flat seat and 14 mm thread diameter with .75 inch reach make it compatible with specific Honda and Porsche models, including the Honda Accord, Honda Prelude, and Porsche 911.

Common Applications and Problem Solving

  • Restores proper ignition in Honda Accord and Prelude engines
  • Improves combustion efficiency in Porsche 911 secondary ignition systems
  • Addresses misfires caused by worn or fouled spark plugs
  • Reduces engine hesitation and rough idling
  • Helps maintain fuel economy by ensuring consistent spark delivery

Installation Notes and Tips

When installing the NGK Standard Spark Plug 5122, ensure the spark plug gap is set to the specified .032 inches if adjustment is needed. Use a 13/16 inch socket for proper torque application and avoid over-tightening to prevent thread damage. The removable nut electrical terminal allows for flexible connection options during installation. Always verify compatibility with your vehicle’s make and model before installation.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Standard Spark Plug 5122 is produced with high-quality materials such as nickel and copper to withstand typical engine conditions. While specific warranty details may vary, NGK products generally come with manufacturer-backed quality assurance to support long-term use.

BrandNGK
Part Number5122
PositionStandard Spark Plug
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialNickel
Electrical Terminal TypeRemovable Nut
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignStandard
Hex Size13/16
Insulator Height55.00
Manufacturer Heat Range7
Part NumberBR7ES
Pre-Gap Size.032
Reach.75
Resistance5000
Seat TypeFlat
Stock Number5122
Thread Diameter14.00

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1980HondaPrelude1.8LL4N/AFederal Emissions; Gap 0.032"; Actual OE Manufacturer; Standard Spark Plug
1979HondaAccord1.8LL4N/AOEM recommends 0.032 inch gap for spark plug.; Standard Spark Plug
1979HondaPrelude1.8LL4N/AOEM recommends 0.032 inch gap for spark plug.; Standard Spark Plug
1973Porsche9112.3LH6N/A0.032" Gap; OE Equivalent Design; Standard Spark Plug
1967Porsche9112.0LH6N/A0.032" Gap; OE Equivalent Design; Standard Spark Plug
1966Porsche9112.0LH6N/A0.032" Gap; OE Equivalent Design; Standard Spark Plug
1965Porsche9112.0LH6N/A0.032" Gap; OE Equivalent Design; Standard Spark Plug

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

09482-00117104176529422401-M791722401-P86173091309630973098346240544054DP2512254739093000736975753392070-103592070-207992070-370194701-0034994702-0034994703-0011298079-5717798079-5781698079-5784998079-57877999-06910-P9-008AGR2CAGR2XCR42NF7RCMS851174R43CXLR43NR43XLRN4RN4CS43XLRW22ES-LW22ESRW22ESR-LW22ESR-L11W22ESR-UWR5CCXST4055XST4055DP

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.