Jeep Spark Plugs | Quadratec

A spark plug, or sometimes simply called a plug, delivers the electric current from your Jeep's ignition system to the combustion cylinder to ignite the compressed fuel / air mixture. A spark plug consists of a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator. It is connected to the ignition system with a spark plug wire.

The correct spark plug is critical to your engine operating at it's peak efficiency and delivering the highest power output. If you've made performance upgrades to your engine, a different spark plug may be necessary to accommodate the increased power output.

Mopar Spark Plug for 18-26 Jeep Wrangler JL with 2.0L Engine

Mopar Spark Plug for 12-26 Jeep Wrangler JL, JK and Gladiator JT

Accel U-Groove Spark Plugs for 84-02 Jeep Vehicles with 2.5/4.0L Engine

OMIX Spark Plug Rain Shield for 41-71 Jeep Vehicles

Crown Automotive Glow Plug for 02-04 Jeep Grand Cherokee WJ with 2.7L Diesel Engine

Crown - 10% Off everything

Crown Automotive Glow Plug for 05-10 Jeep Grand Cherokee WK with 3.0L Diesel Engine

Crown - 10% Off everything

Crown Automotive Glow Plug for 02-04 Jeep Liberty KJ

Crown - 10% Off everything

E-3 Diamond Fire Spark Plug for Chrysler, Dodge & Jeep Vehicles

E-3 Diamond Fire Spark Plug

E-3 Diamond Fire Spark Plug for Jeep 2.8L V6, GM 2.8L I4, 4.3L V6, 5.0L, 5.7L V8 & Ford 5.0L, 5.8L, 7.5L V8

Crown Automotive Spark Plug for 81-90 Jeep CJ & Wrangler YJ, 84-90 Cherokee XJ & Comanche MJ and 81-90 SJ & J-Series

Crown - 10% Off everything

Crown Automotive Spark Plug for 78-80 Jeep CJ-5, CJ-7, SJ and J-Series with 4.2L Engine

Crown - 10% Off everything

OMIX Spark Plug for 07-11 Jeep Wrangler JK with 3.8L

Crown Automotive Glow Plug for 95-01 Jeep Cherokee with 2.5L Diesel Engine & 99-01 Grand Cherokee WJ with 3.1L Diesel Engine

Crown - 10% Off everything

Temporarily Out Of Stock

Crown Automotive Champion Spark Plug

Crown - 10% Off everything

E-3 Diamond Fire Spark Plug for 59-66 CJ Vehicles

E-3 Diamond Fire Spark Plug for 14-22 Jeep Cherokee KL & 08-22 Grand Cherokee WK

E-3 Diamond Fire Spark Plug for 12-21 Jeep Grand Cherokee WK2 SRT & 22-26 Wrangler JL Rubicon 392 with 6.4L

E-3 Diamond Fire Spark Plug for 92-02 Jeep Wrangler TJ with 2.5L 4 Cylinder Engine & 93-96 Grand Cherokee ZJ with 5.2L V-8 Engine

E-3 Diamond Fire Spark Plug for 97-98 Jeep Grand Cherokee ZJ with 5.2L or 5.9L Engine, 99-10 Grand Cherokee WJ & WK with 4.7L V8 Engine

E-3 Diamond Fire Spark Plug for 07-11 Jeep Wrangler JK

E-3 Diamond Fire Spark Plug for 12-18 Jeep Wrangler JK 3.6L, 18-26 Jeep Wrangler JL 3.6L, 11-16 Grand Cherokee 3.6L, & 14-17 Cherokee 3.2L

E-3 Diamond Fire Spark Plug

Crown Automotive Iridium Spark Plug for 12-26 Jeep Wrangler JL & JK

Crown - 10% Off everything

1
2
3
next
last