Bosch
OE Fine Wire Iridium

Bosch 9751 Spark Plug

Brand Bosch 9751
Resistance 6000
Ground Electrode Tip Design Standard
Ground Configuration Standard
Center Electrode Tip Material Iridium
Pre-Gap Size 1.1
Ground Electrode Quantity 1
Hex Size 14
Manufacturer Heat Range 8
Seat Type Flat
Reach 26.5
Thread Diameter 12
Center Electrode Core Material Nickel-yttrium and copper
Ground Electrode Tip Material Nickel-yttrium
Insulator Material Ceramic
Insulator Type Projected
Outdoor Power Equipment Application No
Package Contents Spark plug
Package Quantity 1
Product Length 3.332677 in
Product Width 0.669291 in
Resistor Yes
Short Style No
Spark Plug Type 4-cycle
Product line OE Fine Wire Iridium
Fits Nissan · 16 vehicles

OE fine wire iridium. Ultra-fine center electrode for strong ignition performance and long service life.

Iridium center electrode. Delivers efficient firing and consistent performance from Bosch OE spark plug technology.

Projected insulator. Helps promote reliable combustion in a 4-cycle spark plug design.

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Bosch OE Fine Wire Iridium Spark Plug 9751

Bosch 9751 is an OE Fine Wire Iridium spark plug built for direct ignition performance and extended service life. It uses an ultra-fine iridium center electrode firing pin to support consistent combustion in applications such as the Nissan Versa and Nissan Versa Note.

Key Features

  • Iridium center electrode tip for precise spark delivery
  • Projected insulator design for OE-style combustion chamber placement
  • Resistor spark plug with 6000 resistance
  • Standard ground electrode configuration with nickel-ytttrium tip material
  • Flat seat, 12 mm thread diameter, 14 mm hex size, and 26.5 mm reach
  • Pre-gapped at 1.1 mm; do not gap during installation on listed applications
  • Compatible with 4-cycle ignition systems

Product Details

The Bosch OE Fine Wire Iridium line focuses on OE-level ignition performance with a fine-wire iridium firing pin and durable electrode materials. Part number 9751 uses an iridium center electrode, nickel-ytttrium ground electrode tip, ceramic insulator, and resistor construction to support stable spark delivery in secondary ignition systems. For drivers searching for a Bosch 9751 spark plug for Nissan Versa or Bosch 9751 for Nissan Versa Note, this plug matches the listed OE Fine Wire Iridium applications and preserves the preset gap specification.

Compatible With 2024 Nissan Versa, N/A; 2012-2020 Nissan Versa, N/A; 2019 Nissan Versa Note, N/A; and 2014-2018 Nissan Versa Note, N/A. This part cross-references no listed aftermarket part numbers for the same application.

Common Replacement Reasons

  • Misfires caused by worn spark plug electrodes
  • Hard starting or extended crank time
  • Rough idle or inconsistent combustion
  • Reduced throttle response from ignition wear
  • Service intervals calling for OE-style iridium plugs

Installation Notes

Verify engine application before installation and follow the vehicle service specification for torque and plug access. The gap is preset, so do not adjust it on the listed Nissan Versa and Nissan Versa Note applications. Inspect ignition coils, boots, and plug wells during service to help prevent repeat ignition issues.

Quality Assurance

Bosch designs this OE Fine Wire Iridium spark plug to meet OE-style ignition requirements with durable electrode materials and a resistor design for stable operation. Part number 9751 is built for the listed fitments and follows the preset-gap specification shown above.

This part fits 16 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2024NissanVersa1.6LL4N/AOE Fine Wire Iridium
2020NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2019NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2019NissanVersa Note1.6LL4N/ADo Not Gap, Gap is Preset; To 04/2019; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2018NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2018NissanVersa Note1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2017NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2017NissanVersa Note1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2016NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2016NissanVersa Note1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2015NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2015NissanVersa Note1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2014NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2014NissanVersa Note1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2013NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium
2012NissanVersa1.6LL4N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Iridium