Jeep JK Accessories & Parts for Wrangler (2007-2018)

Carrying on a long tradition of thrilling off-road adventure, the JK generation of Jeep Wranglers roared off the production line and into showrooms starting with the 2007 model year, and concluding in 2018. All Jeep JKs have the same basic rugged, terrain-conquering build, plus a robust frame to cope with the most boulder-strewn trails.

The 2007 launch of the Jeep Wrangler JK was a thorough renovation, bringing this all-time favorite into the 21st century while keeping all the features that define a Jeep. Based on two different wheelbases – a short 96.4 inch wheelbase for 2-door versions and a 116 inch wheelbase for the 4-door Unlimited – the JK has a 5.5 inch wider chassis that increases stability and offers more space inside to bring along extra friends or your entire family.

At the same time, the Jeep JK now boasts power windows and locks (powered by snap connectors that disconnect neatly when the doors are removed), a navigation system, ABS brakes for on-road and off-road use, and brake lock differentials. These boxy, modular 4x4s remain perfectly adapted to all kinds of aftermarket upgrades – extra lights, winches, robust front bumpers, additional storage, and so on – such as the high quality Jeep JK parts offered by ExtremeTerrain.

As far as the heart of the Jeep JK is concerned, we have the 3.8L V6. Consider it a bored out and stroked version of Chrysler’s 3.3L V6 engine. The first iteration of the 3.8L (2007-2011) makes about 202 horsepower and 237 ft/lbs of torque. There was some apprehension about Jeep’s decision of adopting this engine, but don’t let hearsay dissuade you from this generation of Wrangler. The main differences between the V6 and previous 4.0L is the V6 makes its power a tad higher in the RPM line. If you’re familiar with driving the 4.0L and convert to the 3.8L, you’ll noticed the engine prefers to be about 700 RPM higher at highway speeds than its predecessor. In 2012, Chrysler introduced a different engine to the Jeep JK lineup, the 3.6L. Yes, it is a smaller engine, but it has a substantial power bump from the 3.8L. The 3.6L Pentastar V6 makes 285 horsepower and 260 ft/lbs of torque.

Common engine parts for the JK are cold air intakes, more powerful ignition components (to handle the stress of winching), and tuners (to compensate for rear gear changes and tire size changes). If you’re looking to get a little more power out of your rig, a cold air intake is an excellent place to start. If the slight bump isn’t enough, there’s always the full supercharger kits, but they take more mechanical know-how to install and weekend’s worth of time if you plan on tackling such a mod yourself.

All 2007-2018 Wrangler JKs include a standard 6-speed manual transmission with a 5-speed automatic option. The 2018 JK launches from that foundation with exciting upgrades – ranging from standard Dana 44 front and rear axles and 33-inch all-terrain tires on the Rubicon, to premium tan soft tops on the Golden Eagle, Freedom, and Altitude editions. The Golden Eagle edition’s unique aesthetic details include bronze trim and wheels and luxurious leather seats. The Willys Wheeler and Freedom editions feature an optional push-button locking rear differential. When not engaged, the electronic differentials behave as open differentials. In comparison to the TJ, the JK drivetrain is a stronger, more reliable system to tackle off-road adventures.

Another feature introduced to the Jeep Wrangler JK is push-button, sway bar disconnectors. Needless to say, this is a great boon to us off-roaders. Rather than hitting the trail, stopping, getting out of your rig and manually disconnecting your sway bars, you can be trail ready with a push of a button. Just remember to reengage your sway bars before returning to pavement, otherwise you’ll run into drivability and stability issues.

Upgrading this already robust system might seem fruitless. However, like any factory build there’s always room for improvement and the JK is no exception. The Jeep JK parts you’ll see available on our digital shelves are designed to enhance your off-roading experience while adding durability to your rig. Air lockers, for example, are even beefier than the electronic units, but you’ll have to install an onboard air system to work them properly. Swapping out your rear gears for a set that can better handle your larger, heavier, off-roading tires is a common subject amongst Jeepers. Replacing the differential cover for a hardier version that slides off rocks instead of suffering a puncture will help ensure you make it home without the need for an embarrassing tow. Lastly, if your considering lifting your Jeep JK (and who wouldn’t), if you lift your suspension more than three inches you’ll need an aftermarket driveshaft to compensate for the change in drivetrain geometry. Otherwise you’ll start wearing out parts early, and might even break something while out on the trail.

Breaking parts on the trail might not be a new experience for most of us, but Chrysler took the off-roading community’s habits into consideration when designing the Jeep JK fenders. Although the overall JK platform is more robust than the TJ, the JK features breakaway fenders. When these fenders come in contact with an obstacle, they flex and contort to avoid damaging other components such as your JK’s tub. Should they flex too much, they will break apart, leaving fragments behind. This is a significant improvement over the TJ steel fenders as replacing the plastic JK fenders is cheaper and easier than fixing dents in steel. Most aftermarket 2007-2018 Jeep JK Fenders are also plastic, but there are aluminum and steel options if breakaway fenders aren’t your thing. Keep in mind aftermarket fenders are usually designed with trail riding in mind as well as added width to keep you legal with wider tires. Should the fenders breakaway, your tires will be the next point of contact for side impacts.

Speaking of plastic components, some will argue the 2007-2018 Jeep JK front bumper is no different than the TJ’s plastic unit, but consider this. If Jeep released steel, winch ready bumpers how much higher of a price would Chrysler demand for a new Wrangler? Also consider how many Wrangler owners upgrade their front bumpers as their first mod. Keeping the stock bumper is a rarity when there are so many other options to suit someone’s build preferences. From modular, stubby front bumpers to full length bumpers complete with winch mount, upgrading your Jeep JK front bumper is a staple part of owning a Wrangler.

The 2018 JK is a great platform for modding, and ExtremeTerrain has all the top-quality parts you need to turn your new Wrangler into a cross-country powerhouse, including winch bumpers, off-road lighting, body armor, fender flares, and many more excellent Jeep JK parts to maximize your Jeep’s potential!

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