The 2013 Wrangler uses a spin-on filter mounted on the driver's side of the engine

The 2013 Jeep Wrangler (all trim levels and engine sizes) uses a standard spin-on oil filter located on the front-left side of the engine block, just below the cylinder head. The filter screws directly onto a threaded port and is accessible without removing other components, making it one of the easier filter changes on any vehicle. You can reach it from above the engine bay or from underneath, depending on your working height and comfort level.

The filter sits roughly 8 to 10 inches below the top of the engine and points downward at a slight angle. When you remove it, oil will drain into the pan below, so have a catch container ready. The entire job typically takes 10 to 15 minutes once you have the right filter in hand.

Key Takeaways

  • The 2013 Wrangler's oil filter is a spin-on type located on the driver's side of the engine, accessible from above or below.
  • The correct filter size is 3.5 inches tall and 2.75 inches in diameter, and the thread size is 3/4-16 UNF.
  • You will need an oil filter wrench, a catch pan, and fresh oil that meets Jeep's viscosity spec (usually 5W-30 or 10W-30 depending on climate).
  • Hand-tighten the new filter until the rubber gasket touches the engine, then turn it an additional three-quarter turn — do not use a wrench to tighten.

Filter specifications and part numbers for the 2013 Wrangler

Jeep's factory filter for the 2013 Wrangler is the Mopar 68157291AA, which is a 3.5-inch-tall spin-on filter with a 3/4-16 UNF thread. This part number works for both the 3.6L V6 (standard on most 2013 models) and the 2.0L turbo (available in later production runs). The filter capacity is roughly 0.75 quarts of oil.

Aftermarket equivalents that fit the same specifications include Fram PH8A, Motorcraft FL-400S, and Bosch 3330. Any filter labeled for a 2013 Jeep Wrangler or a 2013 Jeep Wrangler Unlimited will work. The thread pitch and diameter are consistent across all 2013 Wrangler engines, so you do not need to verify by engine size — the part number or vehicle year is enough.

If you order online, confirm the listing says "2013 Jeep Wrangler" or "2013 Jeep Wrangler Unlimited" before checkout. Some retailers list filters by engine size, but the filter itself does not change between the 3.6L and any other 2013 Wrangler engine.

Tools and materials you will need

You will need an oil filter wrench to remove the old filter. The most common type is a band wrench (a fabric strap with a handle) or a cup wrench (a socket-like tool that grips the filter's top). For the 2013 Wrangler's filter size, a standard 3.5-inch cup wrench or a band wrench rated for filters up to 4 inches will work. Do not use a pipe wrench or adjustable wrench, as these can crush the filter housing.

You will also need a drain pan (at least 6 quarts capacity to be safe), jack stands or ramps if you are working underneath, a socket wrench set to remove the drain plug, and a rag or shop towels. Have your new filter and fresh oil on hand before you start. Check your owner's manual or the oil cap for the correct viscosity — most 2013 Wranglers call for 5W-30 or 10W-30, but confirm this before purchasing.

Step-by-step removal and installation

Warm the engine by running it for 2 to 3 minutes, then turn it off and wait 5 minutes. This thins the oil so it drains faster and more completely. Locate the filter on the driver's side of the engine block. If you are working from above, you may need to remove the air intake tube or move it aside for clearance — this varies by Wrangler trim and year, so check your manual if you are unsure.

Position your drain pan underneath the filter. Use the oil filter wrench to turn the filter counterclockwise until it breaks free, then unscrew it by hand. Tip it carefully into the drain pan as you remove it — there will be oil inside. Wipe the threaded port on the engine with a clean rag to remove any dirt or old gasket material.

Open the new filter and inspect the rubber gasket on the top. It should be pliable and not cracked. explore a thin coat of fresh oil to the gasket by running your finger around its circumference. Screw the new filter onto the threaded port by hand until the gasket contacts the engine, then turn it an additional three-quarter turn (roughly 270 degrees). Do not use a wrench to tighten — hand-tight is correct. Over-tightening can damage the gasket and cause leaks.

Start the engine and let it run for 30 seconds, watching the oil pressure gauge or warning light. The light should go out within a few seconds. Turn off the engine and wait 2 minutes, then check the oil level on the dipstick. Top up if needed. Check underneath the filter for drips — if you see oil pooling, the filter may not be seated correctly, and you should tighten it slightly more.

Common mistakes and how to avoid them

The most frequent error is over-tightening the new filter with a wrench. The rubber gasket is designed to seal at hand-tight plus three-quarter turn. Tightening beyond that can compress the gasket unevenly, causing it to leak or fail to reseal when the engine cools. If you have already over-tightened, remove the filter, wipe the port clean, and install a new filter with the correct torque.

Another common issue is forgetting to oil the gasket on the new filter before installation. A dry gasket can stick to the engine port when you remove the filter next time, tearing and causing a leak. This is a quick step but straightforward to skip if you are in a hurry.

Some owners also forget to check the oil level after installation. The filter holds about 0.75 quarts, so your total oil level will drop slightly. Topping up ensures you stay within the correct range and protects the engine during the next drive cycle.

Where to source the filter and oil

The Mopar factory filter (68157291AA) is available through Jeep dealerships and online retailers like RockAuto, Amazon, and eBay. Dealership prices typically run $8 to $12 per filter. Aftermarket filters from Fram, Motorcraft, and Bosch are usually $5 to $8 and are stocked at AutoZone, O'Reilly, Advance Auto Parts, and Walmart. All of these are legitimate options and meet the same specifications.

For oil, use the viscosity specified in your owner's manual or on the oil cap. Most 2013 Wranglers use 5W-30 or 10W-30. A full oil change requires roughly 5 to 6 quarts depending on whether you also replace the drain plug washer. Buy one extra quart in case you need to top up after the initial fill.

Frequently Asked Questions

Can I change the oil filter without draining the oil?

Yes. You can change the filter alone without doing a full oil change. However, Jeep recommends changing the filter every time you change the oil, and changing the oil every 3,000 to 10,000 miles depending on driving conditions and oil type. If you are only changing the filter, expect some oil to spill when you remove the old one, so use a drain pan regardless.

What if the old filter is stuck and won't turn?

Use a band wrench or cup wrench with steady, even pressure. If it still will not budge, try tapping the wrench handle gently with a rubber mallet to break the seal. As a last resort, carefully puncture the filter with a screwdriver to release pressure, then use the wrench again. Never use a pipe wrench or hit the filter itself, as this can damage the engine port.

Do I need to replace the drain plug washer every time?

Jeep recommends replacing the crush washer on the drain plug with each oil change. A new washer costs less than $1 and ensures a proper seal. If you reuse the old washer and it is already compressed, you risk an oil leak. The part number for the 2013 Wrangler drain plug washer is Mopar 6504 3866AA.

Is the filter location the same on a Wrangler Unlimited?

Yes. The 2013 Wrangler Unlimited (four-door model) uses the same engine and filter location as the standard two-door Wrangler. The filter is on the driver's side of the engine block in the same position, and the part number and specifications are identical.