Bosch
OE Fine Wire Double Platinum

Bosch 8188 Spark Plug

Brand Bosch 8188
Resistance 6000
Ground Electrode Tip Design Standard
Ground Configuration J-gap
Ground Electrode Core Material Copper
Electrical Terminal Type Non-removable nut
Center Electrode Core Material Copper
Center Electrode Tip Material Platinum
Pre-Gap Size .7
Ground Electrode Quantity 1
Hex Size 16
Manufacturer Heat Range 6
Seat Type Flat
Reach 19
Insulator Material Ceramic
Resistor Type Yes
Ground Electrode Tip Material Platinum
Hex Type Hex
Center Electrode Design Fine wire
9746 No
Automotive Item Weight (lbs) 0.092594 lb
Insulator Type Non-projected
Outdoor Power Equipment Application No
Package Contents Spark plug
Package Quantity 1
Product Length 2.996063 in
Product Width 0.748031 in
Resistor Yes
Short Style No
Spark Plug Type 4-cycle
Thread Diameter (Spark Plug) 14 mm
Product line OE Fine Wire Double Platinum
Fits Mitsubishi · 4 vehicles

OE fine wire double platinum. Meets original equipment specs for dependable performance and long service life.

Platinum firing surfaces. Helps reduce gap erosion for lasting durability and consistent performance.

Fine wire center electrode. Promotes efficient ignition for smooth, reliable spark plug operation.

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Bosch OE Fine Wire Double Platinum Spark Plug 8188

Bosch 8188 is an OE Fine Wire Double Platinum spark plug built for consistent ignition performance and extended service life. It is a direct-fit option for 2003-2006 Mitsubishi Montero applications listed below, with OE-style construction that supports stable firing and reduced electrode wear.

Key Features

  • Fine wire center electrode with platinum tip for precise spark delivery
  • Platinum ground electrode inlay to reduce gap erosion over time
  • Resistor design with 6000 resistance for ignition system compatibility
  • 14 mm thread diameter, 19 mm reach, and flat seat design
  • Ceramic insulator and non-removable nut terminal
  • Heat range 6 with pre-gap size of .7
  • Compatible with 2003-2006 Mitsubishi Montero, N/A

Product Details

The Bosch OE Fine Wire Double Platinum line is engineered around OE spark plug specifications, using platinum on both the center and ground electrode contact points. That construction helps limit gap growth and supports long-term performance in daily driving and maintenance intervals. Bosch 8188 is a practical choice for Mitsubishi Montero owners looking for an OE-style double platinum spark plug with the correct dimensions and resistor configuration.

This part cross-references Bosch 8188 for the same application.

Common Issues This Spark Plug Can Address

  • Hard starting caused by worn spark plug electrodes
  • Rough idle from inconsistent spark output
  • Misfire concerns related to excessive gap wear
  • Reduced ignition efficiency from aged plugs
  • Maintenance replacement for OE-style ignition service

Installation Notes and Tips

Verify the thread diameter, reach, seat type, and heat range before installation. Use the specified gap setting for the application and inspect ignition components for wear or contamination while servicing the plugs. For 2003-2006 Mitsubishi Montero models, confirm the engine-specific service requirements in the vehicle manual before installation.

Quality Assurance

Bosch designs this spark plug to meet Original Equipment specifications for double platinum applications, with platinum materials used to improve durability and maintain performance over time.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2006MitsubishiMontero3.8LV6OE Fine Wire Double Platinum
2005MitsubishiMontero3.8LV6OE Fine Wire Double Platinum
2004MitsubishiMontero3.8LV6OE Fine Wire Double Platinum
2003MitsubishiMontero3.8LV6OE Fine Wire Double Platinum