Bosch
OE Fine Wire Double Platinum

Bosch 8158 Spark Plug

Brand Bosch 8158
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 5
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 Audi, Porsche, and Volkswagen · 227 vehicles

OE fine-wire design. Delivers precise ignition and long service life.

Double platinum construction. Helps reduce gap erosion for lasting performance.

Resistor spark plug. Supports cleaner operation with stable electrical resistance.

$18.84Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $18.84
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Bosch OE Fine Wire Double Platinum Spark Plug

Bosch 8158 is an OE Fine Wire Double Platinum spark plug built for steady ignition performance and extended service life. It uses platinum on the center electrode and a platinum inlay on the ground electrode to reduce gap erosion and maintain consistent firing characteristics over time.

Compatible With Audi, Volkswagen, and Porsche applications that call for this OE-style double platinum design, Bosch 8158 supports factory-spec ignition service on a wide range of turbocharged and performance-oriented engines.

Key Features

  • Fine wire center electrode for precise spark delivery
  • Double platinum construction on the center and ground electrodes
  • 6000 ohm resistor design for ignition system stability
  • J-gap ground configuration with a standard ground tip design
  • 14 mm thread diameter, 19 mm reach, and flat seat design
  • Ceramic insulator with non-removable nut terminal
  • Pre-gapped to .7 mm

Product Details

The Bosch OE Fine Wire Double Platinum line is engineered around original equipment spark plug requirements. Bosch 8158 uses a platinum firing pin on the center electrode and a platinum inlay on the ground electrode, which helps reduce wear at the gap and maintain consistent performance life. The copper core construction, resistor design, and fine wire electrode profile support reliable ignition under everyday driving conditions and higher-demand engine operation.

This part cross-references Bosch 8158 for the same application.

Common Issues This Spark Plug Can Address

  • Hard starting caused by worn or eroded spark plug electrodes
  • Rough idle from inconsistent spark delivery
  • Misfire conditions related to aged ignition components
  • Reduced fuel economy from weak or unstable ignition performance
  • Service intervals shortened by rapid gap wear

Installation Notes and Tips

Verify engine application by year, make, and model before installation. Confirm the specified gap, thread diameter, reach, and seat type match the vehicle’s OE requirements. Inspect ignition coils, boots, and plug wells during service, and install to the manufacturer’s torque specification for the engine.

Fits 2005-2016 Audi A4, N/A; Fits 2005-2016 Audi A4 Quattro, N/A; Fits 2006-2014 Volkswagen GTI, N/A; Fits 2011-2018 Porsche Cayenne, N/A; Fits 2012-2016 Porsche Panamera, N/A; Fits 2009-2017 Volkswagen Tiguan, N/A.

Quality Assurance

Bosch manufactures this spark plug to OE Fine Wire Double Platinum specifications for applications that require platinum on both electrodes and OE-level ignition geometry. Part number 8158 is built to meet original equipment expectations for durability and consistent spark performance.

This part fits 227 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypeNotes
2019AudiA8 Quattro3.0LV6OE Fine Wire Double Platinum
2019AudiQ73.0LV6OE Fine Wire Double Platinum
2018AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2018AudiA7 Quattro3.0LV6OE Fine Wire Double Platinum
2018AudiA8 Quattro3.0LV6OE Fine Wire Double Platinum
2018AudiQ32.0LL4OE Fine Wire Double Platinum
2018AudiQ3 Quattro2.0LL4OE Fine Wire Double Platinum
2018AudiQ73.0LV6OE Fine Wire Double Platinum
2018PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2017AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2017AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2017AudiA7 Quattro3.0LV6OE Fine Wire Double Platinum
2017AudiA8 Quattro3.0LV6OE Fine Wire Double Platinum
2017AudiQ32.0LL4OE Fine Wire Double Platinum
2017AudiQ3 Quattro2.0LL4OE Fine Wire Double Platinum
2017AudiQ53.0LV6OE Fine Wire Double Platinum
2017AudiQ73.0LV6OE Fine Wire Double Platinum
2017AudiR85.2LV10OE Fine Wire Double Platinum
2017AudiS53.0LV6OE Fine Wire Double Platinum
2017AudiSQ53.0LV6OE Fine Wire Double Platinum
2017PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2017VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2017VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2017VolkswagenTiguan Limited2.0LL4OE Fine Wire Double Platinum
2016AudiA42.0LL4OE Fine Wire Double Platinum
2016AudiA4 allroad2.0LL4OE Fine Wire Double Platinum
2016AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2016AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2016AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2016AudiA7 Quattro3.0LV6OE Fine Wire Double Platinum
2016AudiA8 Quattro3.0LV6OE Fine Wire Double Platinum
2016Audiallroad2.0LL4OE Fine Wire Double Platinum
2016AudiQ32.0LL4OE Fine Wire Double Platinum
2016AudiQ3 Quattro2.0LL4OE Fine Wire Double Platinum
2016AudiQ53.0LV6OE Fine Wire Double Platinum
2016AudiS43.0LV6OE Fine Wire Double Platinum
2016AudiS53.0LV6OE Fine Wire Double Platinum
2016AudiSQ53.0LV6OE Fine Wire Double Platinum
2016PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2016PorschePanamera3.0LV6PLUG-IN HYBRID EV-GAS (PHEV)OE Fine Wire Double Platinum
2016VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2016VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2016VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2015AudiA42.0LL4OE Fine Wire Double Platinum
2015AudiA4 allroad2.0LL4OE Fine Wire Double Platinum
2015AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2015AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2015AudiA62.0LL4OE Fine Wire Double Platinum
2015AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2015AudiA7 Quattro3.0LV6OE Fine Wire Double Platinum
2015AudiA8 Quattro3.0LV6OE Fine Wire Double Platinum
2015Audiallroad2.0LL4OE Fine Wire Double Platinum
2015AudiQ32.0LL4OE Fine Wire Double Platinum
2015AudiQ3 Quattro2.0LL4OE Fine Wire Double Platinum
2015AudiQ53.0LV6OE Fine Wire Double Platinum
2015AudiQ73.0LV6OE Fine Wire Double Platinum
2015AudiR85.2LV10OE Fine Wire Double Platinum
2015AudiRS54.2LV8OE Fine Wire Double Platinum
2015AudiS43.0LV6OE Fine Wire Double Platinum
2015AudiS53.0LV6OE Fine Wire Double Platinum
2015AudiSQ53.0LV6OE Fine Wire Double Platinum
2015AudiTT Quattro2.0LL4OE Fine Wire Double Platinum
2015AudiTTS Quattro2.0LL4OE Fine Wire Double Platinum
2015PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2015PorschePanamera3.0LV6PLUG-IN HYBRID EV-GAS (PHEV)OE Fine Wire Double Platinum
2015VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2015VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2015VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2015VolkswagenTouareg3.0LV6OE Fine Wire Double Platinum
2014AudiA42.0LL4OE Fine Wire Double Platinum
2014AudiA4 allroad2.0LL4OE Fine Wire Double Platinum
2014AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2014AudiA52.0LL4OE Fine Wire Double Platinum
2014AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2014AudiA62.0LL4OE Fine Wire Double Platinum
2014AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2014AudiA7 Quattro3.0LV6OE Fine Wire Double Platinum
2014AudiA8 Quattro3.0LV6OE Fine Wire Double Platinum
2014Audiallroad2.0LL4OE Fine Wire Double Platinum
2014AudiQ53.0LV6OE Fine Wire Double Platinum
2014AudiQ73.0LV6OE Fine Wire Double Platinum
2014AudiR85.2LV10OE Fine Wire Double Platinum
2014AudiRS54.2LV8OE Fine Wire Double Platinum
2014AudiS43.0LV6OE Fine Wire Double Platinum
2014AudiS53.0LV6OE Fine Wire Double Platinum
2014AudiSQ53.0LV6OE Fine Wire Double Platinum
2014AudiTT Quattro2.0LL4OE Fine Wire Double Platinum
2014AudiTTS Quattro2.0LL4OE Fine Wire Double Platinum
2014PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2014PorschePanamera3.0LV6PLUG-IN HYBRID EV-GAS (PHEV)OE Fine Wire Double Platinum
2014VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2014VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2014VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2014VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2014VolkswagenTouareg3.0LV6OE Fine Wire Double Platinum
2013AudiA32.0LL4OE Fine Wire Double Platinum
2013AudiA3 Quattro2.0LL4OE Fine Wire Double Platinum
2013AudiA42.0LL4OE Fine Wire Double Platinum
2013AudiA4 allroad2.0LL4GASOE Fine Wire Double Platinum
2013AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2013AudiA52.0LL4OE Fine Wire Double Platinum
2013AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2013AudiA62.0LL4OE Fine Wire Double Platinum
2013AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2013AudiA7 Quattro3.0LV6OE Fine Wire Double Platinum
2013AudiA8 Quattro3.0LV6OE Fine Wire Double Platinum
2013Audiallroad2.0LL4OE Fine Wire Double Platinum
2013AudiQ53.0LV6OE Fine Wire Double Platinum
2013AudiQ73.0LV6OE Fine Wire Double Platinum
2013AudiRS54.2LV8OE Fine Wire Double Platinum
2013AudiS43.0LV6OE Fine Wire Double Platinum
2013AudiS53.0LV6OE Fine Wire Double Platinum
2013AudiTT Quattro2.0LL4OE Fine Wire Double Platinum
2013AudiTTS Quattro2.0LL4OE Fine Wire Double Platinum
2013PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2013PorschePanamera3.0LV6OE Fine Wire Double Platinum
2013VolkswagenBeetle2.0LL4OE Fine Wire Double Platinum
2013VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2013VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2013VolkswagenGolf R2.0LL4OE Fine Wire Double Platinum
2013VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2013VolkswagenJetta2.0LL4OE Fine Wire Double Platinum
2013VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2013VolkswagenTouareg3.0LV6OE Fine Wire Double Platinum
2012AudiA32.0LL4OE Fine Wire Double Platinum
2012AudiA3 Quattro2.0LL4OE Fine Wire Double Platinum
2012AudiA42.0LL4OE Fine Wire Double Platinum
2012AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2012AudiA52.0LL4OE Fine Wire Double Platinum
2012AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2012AudiA62.0LL4OE Fine Wire Double Platinum
2012AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2012AudiA7 Quattro3.0LV6OE Fine Wire Double Platinum
2012AudiQ52.0LL4OE Fine Wire Double Platinum
2012AudiQ73.0LV6OE Fine Wire Double Platinum
2012AudiR85.2LV10OE Fine Wire Double Platinum
2012AudiS43.0LV6OE Fine Wire Double Platinum
2012AudiS53.0LV6OE Fine Wire Double Platinum
2012AudiTT Quattro2.0LL4OE Fine Wire Double Platinum
2012AudiTTS Quattro2.0LL4OE Fine Wire Double Platinum
2012PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2012PorschePanamera3.0LV6OE Fine Wire Double Platinum
2012VolkswagenBeetle2.0LL4OE Fine Wire Double Platinum
2012VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2012VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2012VolkswagenGolf R2.0LL4OE Fine Wire Double Platinum
2012VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2012VolkswagenJetta2.0LL4OE Fine Wire Double Platinum
2012VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2012VolkswagenTouareg3.0LV6OE Fine Wire Double Platinum
2011AudiA32.0LL4OE Fine Wire Double Platinum
2011AudiA3 Quattro2.0LL4OE Fine Wire Double Platinum
2011AudiA42.0LL4OE Fine Wire Double Platinum
2011AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2011AudiA52.0LL4OE Fine Wire Double Platinum
2011AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2011AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2011AudiQ52.0LL4OE Fine Wire Double Platinum
2011AudiQ73.0LV6OE Fine Wire Double Platinum
2011AudiR85.2LV10OE Fine Wire Double Platinum
2011AudiS43.0LV6OE Fine Wire Double Platinum
2011AudiTT Quattro2.0LL4OE Fine Wire Double Platinum
2011AudiTTS Quattro2.0LL4OE Fine Wire Double Platinum
2011PorscheCayenne3.0LV6OE Fine Wire Double Platinum
2011VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2011VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2011VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2011VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2011VolkswagenTouareg3.0LV6OE Fine Wire Double Platinum
2010AudiA32.0LL4OE Fine Wire Double Platinum
2010AudiA3 Quattro2.0LL4OE Fine Wire Double Platinum
2010AudiA42.0LL4OE Fine Wire Double Platinum
2010AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2010AudiA52.0LL4OE Fine Wire Double Platinum
2010AudiA5 Quattro2.0LL4OE Fine Wire Double Platinum
2010AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2010AudiR85.2LV10OE Fine Wire Double Platinum
2010AudiS43.0LV6OE Fine Wire Double Platinum
2010AudiS53.0LV6OE Fine Wire Double Platinum
2010AudiTT Quattro2.0LL4OE Fine Wire Double Platinum
2010AudiTTS Quattro2.0LL4OE Fine Wire Double Platinum
2010VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2010VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2010VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2010VolkswagenJetta2.0LL4OE Fine Wire Double Platinum
2010VolkswagenPassat2.0LL4OE Fine Wire Double Platinum
2010VolkswagenPassat CC2.0LL4OE Fine Wire Double Platinum
2010VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2009AudiA32.0LL4OE Fine Wire Double Platinum
2009AudiA3 Quattro2.0LL4OE Fine Wire Double Platinum
2009AudiA42.0LL4OE Fine Wire Double Platinum
2009AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2009AudiA6 Quattro3.0LV6OE Fine Wire Double Platinum
2009AudiR85.2LV10OE Fine Wire Double Platinum
2009AudiTT2.0LL4OE Fine Wire Double Platinum
2009AudiTT Quattro2.0LL4OE Fine Wire Double Platinum
2009AudiTTS Quattro2.0LL4OE Fine Wire Double Platinum
2009VolkswagenCC2.0LL4OE Fine Wire Double Platinum
2009VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2009VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2009VolkswagenJetta2.0LL4OE Fine Wire Double Platinum
2009VolkswagenPassat2.0LL4OE Fine Wire Double Platinum
2009VolkswagenPassat CC2.0LL4OE Fine Wire Double Platinum
2009VolkswagenTiguan2.0LL4OE Fine Wire Double Platinum
2008AudiA32.0LL4OE Fine Wire Double Platinum
2008AudiA42.0LL4OE Fine Wire Double Platinum
2008AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2008AudiTT2.0LL4OE Fine Wire Double Platinum
2008VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2008VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2008VolkswagenJetta2.0LL4OE Fine Wire Double Platinum
2008VolkswagenPassat2.0LL4OE Fine Wire Double Platinum
2007AudiA32.0LL4OE Fine Wire Double Platinum
2007AudiA42.0LL4OE Fine Wire Double Platinum
2007AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2007VolkswagenEos2.0LL4OE Fine Wire Double Platinum
2007VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2007VolkswagenJetta2.0LL4OE Fine Wire Double Platinum
2007VolkswagenPassat2.0LL4OE Fine Wire Double Platinum
2006AudiA32.0LL4OE Fine Wire Double Platinum
2006AudiA42.0LL4OE Fine Wire Double Platinum
2006AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum
2006VolkswagenGTI2.0LL4OE Fine Wire Double Platinum
2006VolkswagenJetta2.0LL4OE Fine Wire Double Platinum
2006VolkswagenPassat2.0LL4OE Fine Wire Double Platinum
2005AudiA42.0LL4OE Fine Wire Double Platinum
2005AudiA4 Quattro2.0LL4OE Fine Wire Double Platinum