Bosch 8161 Spark Plug
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Bosch
 OE Fine Wire Double Platinum

Bosch 8161 Spark Plug

Brand Bosch 8161
Additional Accessories Included No
Center Electrode Core Material Nickel-Yttrium and Copper
Center Electrode Tip Material Platinum
Ground Configuration Standard
Ground Electrode Quantity 1
Ground Electrode Tip Design Standard
Ground Electrode Tip Material Platinum and Nickel-Yttrium
Hex Size 16
Insulator Material Ceramic
Insulator Type Projected
Manufacturer Heat Range 9
Outdoor Power Equipment Application No
Package Contents Spark Plug
Pre-Gap Size 1.1
Product Length 3.498031 in
Product Width 0.712598 in
Reach 25
Resistance 6000
Resistor Yes
Seat Type Tapered
Short Style No
Spark Plug Type 4-Cycle
Thread Diameter 14
Product line OE Fine Wire Double Platinum
Fits Chrysler, Dodge, and Jeep · 95 vehicles

OE fine-wire design. Built to meet original equipment specifications for double platinum spark plugs.

Double platinum electrodes. Platinum on both electrodes helps reduce gap erosion and extend service life.

Projected ceramic insulator. Supports efficient ignition performance in a 4-cycle spark plug.

$16.75Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Bosch OE Fine Wire Double Platinum Spark Plug

Bosch 8161 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 help reduce gap erosion while maintaining OE-style specifications.

Compatible With Chrysler PT Cruiser, Chrysler 300, Dodge Charger, Dodge Ram 1500, and Jeep Grand Cherokee applications that call for a double platinum plug. The preset gap and tapered seat support direct replacement service on listed vehicles.

Key Features

  • Double platinum design for improved durability and consistent spark delivery
  • Platinum center electrode tip with platinum ground electrode inlay
  • Fine-wire OE-style construction for stable ignition performance
  • Resistor plug with 6000 ohms resistance
  • Preset 1.1 mm gap; do not gap before installation
  • Projected ceramic insulator for OE-style combustion chamber placement
  • Tapered seat, 14 mm thread diameter, 16 mm hex size
  • Bosch 8161 spark plug for 4-cycle gasoline engines

Product Details

The Bosch OE Fine Wire Double Platinum line focuses on OE replacement performance with long-term durability. Bosch 8161 uses a platinum firing pin on the center electrode and platinum in the ground electrode design to help control wear at the gap, which is important in high-mileage service and in engines that specify double platinum construction. This part is a direct-fit style spark plug for select Chrysler, Dodge, and Jeep vehicles, including Chrysler PT Cruiser, Dodge Ram 2500, and Jeep Wrangler applications listed in the fitment data. Bosch 8161 is engineered to meet Original Equipment specifications for double platinum spark plugs.

Common Issues This Plug Can Address

  • Hard starting caused by worn spark plug electrodes
  • Rough idle from inconsistent ignition output
  • Misfire conditions related to excessive gap wear
  • Reduced throttle response from degraded spark delivery
  • Service intervals shortened by standard plug electrode erosion

Installation Notes and Tips

  • Do not gap this spark plug; the gap is preset from the factory.
  • Verify the engine calls for a tapered-seat, double platinum plug before installation.
  • Check the vehicle’s service information for the correct torque specification.
  • Inspect ignition coils, boots, and wires during spark plug service to avoid repeat misfire concerns.
  • Confirm the application matches the listed Bosch 8161 fitment for Chrysler, Dodge, and Jeep models.

Quality Assurance

Bosch designs the OE Fine Wire Double Platinum line to meet Original Equipment specifications for double platinum spark plugs. The platinum-on-platinum electrode construction is used to support durability and consistent ignition performance in the listed applications.

Related reading

This part fits 95 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersFuel TypePositionNotes
2010ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2009ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008Chrysler300AWD5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008Chrysler300RWD5.7LV8—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008ChryslerAspen—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008DodgeCharger—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008DodgeDurango—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008DodgeMagnum—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008DodgeRam 1500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008DodgeRam 2500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008DodgeRam 3500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008JeepCommander—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2008JeepGrand Cherokee—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007Chrysler300AWD5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007Chrysler300RWD5.7LV8—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007ChryslerAspen—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007DodgeCaravan—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007DodgeCharger—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007DodgeDurango—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007DodgeMagnum—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007DodgeRam 1500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007DodgeRam 2500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007DodgeRam 3500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007JeepCommander—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2007JeepGrand Cherokee—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006Chrysler300AWD5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006Chrysler300RWD5.7LV8—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006ChryslerSebring—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeCaravan—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeCharger—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeDurango—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeMagnum—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeRam 1500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeRam 2500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeRam 3500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006DodgeStratus—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006JeepCommander—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006JeepGrand Cherokee—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006JeepTJ—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2006JeepWrangler—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005Chrysler300AWD5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005Chrysler300RWD5.7LV8—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005ChryslerSebring—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeCaravan—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeDurango—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeMagnum—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeNeon—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeRam 1500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeRam 2500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeRam 3500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005DodgeStratus—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005JeepGrand Cherokee—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005JeepLiberty—2.4LL4—N/ADo Not Gap, Gap is Preset; For Sustained High Speed Driving; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005JeepTJ—2.4LL4—N/ADo Not Gap, Gap is Preset; For Sustained High Speed Driving; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2005JeepWrangler—2.4LL4—N/ADo Not Gap, Gap is Preset; For Sustained High Speed Driving; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004ChryslerSebring—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004DodgeCaravan—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004DodgeDurango—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004DodgeNeon—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004DodgeRam 1500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004DodgeRam 2500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004DodgeRam 3500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004DodgeStratus—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004JeepLiberty—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004JeepTJ—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2004JeepWrangler—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003ChryslerSebring—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003ChryslerVoyager—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003DodgeCaravan—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003DodgeGrand CaravanFWD3.3LV6GASN/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003DodgeNeon—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003DodgeRam 1500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003DodgeRam 2500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003DodgeRam 3500—5.7LV8—N/ADo Not Gap, Gap is Preset; with Dual Spark Plugs; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003DodgeStratus—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003JeepLiberty—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003JeepTJ—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2003JeepWrangler—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2002ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2002ChryslerSebring—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2002ChryslerVoyager—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2002DodgeCaravan—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2002DodgeStratus—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2002JeepLiberty—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2001ChryslerPT Cruiser—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2001ChryslerSebring—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2001ChryslerVoyager—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2001DodgeCaravan—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum
2001DodgeStratus—2.4LL4—N/ADo Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; OE Fine Wire Double Platinum