Bosch 8115 spark plug for the 1997-2002 Jeep Wrangler 4-cylinder 2.5L, the 1997-2006 Wrangler 6-cylinder 4.0L and other vehicles ignites the air-fuel mixture in each cylinder with a double platinum, fine wire design. It meets Original Equipment specifications for double platinum spark plugs.
- Bosch OE Fine Wire Double Platinum design: platinum firing pin and platinum ground inlay reduce gap erosion
- Platinum firing pin on the center electrode and laser-welded platinum inlay ground electrode extend spark plug life
- OE Fine Wire design requires up to 24% less voltage to ignite
- 360 degree continuous laser welding adds durability and service life
- Copper core gives a broader heat range to resist pre-ignition and fouling
Quick facts
- Part: Bosch 8115 spark plug
- Fits: 1997-2002 Jeep Wrangler 4-cylinder 2.5L, 1997-2006 Wrangler 6-cylinder 4.0L and other vehicles
- Condition: New
A worn plug can show up as hard starting, a rough idle, a misfire or poorer fuel economy. Coils, plug wires, injectors or a vacuum leak can be behind a misfire too, so track down the cause before you buy. The engine takes one plug per cylinder, so a 4-cylinder needs four and a 6-cylinder needs six.
Fits
The same Bosch plug is a spark plug for the 1993-2004 Jeep Grand Cherokee 6-cylinder 4.0L and the 2004-2006 Dodge Ram 1500 V10 8.3L, plus a wide range of other Jeep, American Motors, Dodge and Chrysler models. If your car is not named here, find its year, model and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per engine: one per cylinder
- Package quantity: 1
- Insulator type: Projected
- Gap: pre-gapped
Build and materials
- Center electrode: platinum firing pin
- Ground electrode: laser-welded platinum inlay
- Core: copper
- Threads: nickel plated
- Design: OE Fine Wire
- Resistor: Yes
- Condition: New
- Warranty: Bosch 5 year customer satisfaction guarantee and 1 year Technician Warranty
In the box
One spark plug.
Installation notes
- Pre-gapped, so no gap adjustment is needed.
- Nickel plated threads mean no anti-seize is needed.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Do these Jeep Wrangler spark plugs fit the 1997-2006 Wrangler 6-cylinder 4.0L?
Yes. Bosch 8115 fits the 1997-2006 Jeep Wrangler 6-cylinder 4.0L, which takes six plugs, and the 1997-2002 Wrangler 4-cylinder 2.5L, which takes four.
Why do these Bosch platinum spark plugs last longer than copper ones?
Platinum on the center electrode firing pin and a laser-welded platinum inlay ground electrode give 3 times longer life than conventional copper spark plugs. The 360 degree laser welding adds durability.
Is the Bosch 8115 pre-gapped, or do I need to set the gap?
Yes. Bosch 8115 comes pre-gapped, so no gap adjustment is needed, and its nickel plated threads mean no anti-seize is required.
How many plugs come in one order of this double platinum spark plug?
One spark plug. The engine takes one per cylinder, so order as many as it has cylinders.
Does this OE Fine Wire spark plug have a resistor?
Yes. This plug is a resistor type, and its OE Fine Wire design requires up to 24% less voltage to ignite.
