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Jeep Wrangler Serpentine Belt Replacement Guide
How to change the serpentine accessory belt on a 2018 to 2023 Jeep Wrangler with the 2.0L turbo I4 engine.

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2020 Wrangler 2.0L I4
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Remove Air Box Cover
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Left Middle Screw
This automotive maintenance tutorial was specifically written to assist owners of the "JL" fourth generation (2017, 2018, 2019, 2020, 2021, 2022 & 2023) Jeep Wrangler SUV in changing the serpentine accessory belt on the Hurricane GME 2.0 liter turbocharged inline four cylinder engine. (The procedure might be similar for the Pentastar 3.6L V6 engine.)

Owners of other Jeep, Dodge and RAM vehicles such as the Grand Cherokee, Compass, Renegade, Gladiator, Cherokee, Grand Wagoneer, Wagoneer, Charger, Challenger, Durango, RAM 1500, Promaster, 2500 and 3500 may also find these DIY instructions to be helpful.

The OEM (original equipment manufacturer) belt part number is Mopar 05281575AA (also known as 5281575AA).

A few aftermarket replacement serpentine accessory belts that are compatible with the GME 2.0L turbo I4 engine with their part numbers include the following: Gates K060760, ACDelco 6K760 and MyParts ‎PA3-133161.

The tools needed to complete this procedure include an 8mm socket with a 1/4" drive ratchet, a 10mm socket with a 3/4" drive ratchet and a large 3/8" breaker bar (or a 1/2" drive breaker bar with a 3/8" drive adapter).

The first two steps are to open the hood and then move to the left (passenger) side of the engine bay.

To easily access the serpentine belt and the pulleys, you'll need to remove the entire air intake assembly.

Start by removing the screws around the air box cover by rotating them in the counterclockwise direction with an 8mm socket, an extension bar and a 1/4" drive ratchet. (You could also use a Phillips head screwdriver or a flat head screwdriver.)

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8mm / Phillips / Flat Head
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Removing Screws
Set the four air box screws aside in a safe place.

I also removed a fifth screw located at the middle left of the air box cover. It may have not been necessary to remove it.

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Air Intake Hose Clamp
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Loosen Counterclockwise
Loosen the clamp on the air intake tube by turning it in the counterclockwise direction.
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Pull Off Air Box Cover
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Remove Air Filter
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Loosen 10mm Bolt
Lift the air box cover and slide out the air filter.

Set the filter aside in a safe place.

Remove the 10mm bolt on the left side of the air intake.

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10mm Bolt Removed
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Pull Out Lower Air Box
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Rubber Friction Fastener
Set the 10mm bolt aside in a safe place.

Firmly pull out the lower half of the air box from the engine bay to release the rubber friction fasteners.

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Air Box Removed
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Set Aside Filter Housing
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Air Intake Assembly
Set the air box assembly aside in a safe place.

Next, we'll be removing the plastic air intake tube and rubber hose assembly.

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Remove 10mm Bolts
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Loosen Counterclockwise
Remove the two bolts situated at the front of the engine bay by turning them in the counterclockwise direction with the 10mm socket and a 1/4" or 3/8" drive ratchet.
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2 10mm Bolts Removed
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Air Intake Hose Clamp
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Loosen Counterclockwise
Set the two 10mm bolts aside in a safe place.

Loosen the hose clamp by turning the fastener in the counterclockwise direction.

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Rotate Intake Assembly
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Set Aside Air Intake
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Easy Access To Pulleys
Gently rotate the air intake assembly to loosen it from the throttle body.

Set the air intake assembly aside in a safe place.

Now you'll have easy access to all of the pulleys and the serpentine belt.

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Alternator On Left
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Crankshaft At Bottom
Take a moment to examine how the OEM belt is routed around the various pulleys including the alternator, crankshaft, idler, tensioner, air conditioning (A/C) compressor and water (coolant) pump.
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3/8" Drive & Breaker Bar
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Silver Metal Tensioner
I chose to use a long 1/2" drive breaker bar with a 3/8" to 1/2" drive adapter attached to it.

Locate the square 3/8" drive opening at the bottom of the tensioner assembly.

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Rotate Clockwise -->
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Slip Belt Off Alternator
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Remove Belt From Pulleys
Firmly rotate the breaker bar in the clockwise direction (towards the driver side of the vehicle and away from the 12V car battery) to release the tension on the OEM belt.

Hold the tensioner in the released position with your right hand.

With the other hand, very carefully slip the old belt off the alternator pulley.

Warning - Do NOT place your fingers or hand in between the belt and any of the pulleys!

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Old OEM Belt Removed
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OEM Part Number
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Lower In New Belt
Continue slipping the old belt off the other pulleys.

The OEM belt was marked as part number Mopar 05281575AA (42095T Gates 6PK1924).

Lower the new belt down into the front of the engine bay.

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Slip Behind Tensioner
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Belt Routing Diagram
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Route New Belt
Carefully slip the new belt behind the tensioner assembly and wrap the smooth side around the smooth tensioner pulley.

Continue rotating the rest of the new belt around the various pulleys.

Keep in mind that the ribbed side of the belt should be wrapped around the ribbed pulleys.

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Hold Last Belt Loop
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Rotate Clockwise --->
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Release Tensioner
Hold the last loop of the new belt near the alternator pulley.

With your other hand, release the tensioner by rotating the ratchet in the clockwise direction (to the right).

If you click on Picture # 44, you can see a white arrow showing the correct direction to rotate the ratchet.

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Slip Belt Over Alternator
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New Belt Installed
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Double Check Routing
Carefully slip the last loop of the new belt over the alternator pulley.

Double check that the new belt is properly routed and fully seated on all of the pulleys.

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Belt Properly Routed
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Lower In Air Box
Lower the bottom half of the air box down into the engine bay.
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Push To Secure Fasteners
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Spin In 10mm Bolt
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Tighten Clockwise
Push down on the air box to secure the rubber friction fasteners

Replace the bolt on the left edge of the air intake by tightening it in the clockwise direction with the 10mm socket and a ratchet until it is snug.

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Lower In Air Filter
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Replace Air Box Cover
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Tighten 8mm Clockwise
Replace the filter and lower the air box cover down into place.

Tighten the four 8mm screws in the clockwise direction until they are snug.

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Push On Air Intake Tube
Push the rubber air intake hose back on to the filter housing.

Tighten the hose clamp in the clockwise direction.

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Tighten 10mm Bolts
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Belt Change Complete
Replace the black plastic air intake tube.

Tighten the two 10mm bolts in the clockwise direction until they are snug.

Double check that you have reinstalled the entire air intake assembly properly and all of the fasteners are snug.

To test the new belt, start the engine and listen closely for any strange sounds.

If you do hear a weird noise, immediately turn off the ignition and check the belt routing again.

There is no defined service interval for changing the serpentine belt in the owner's manual. I recommend checking the old belt for signs of wear (cracks, fraying or chunks of rubber missing) every 15,000 to 30,000 miles.

It should be changed every 60,000 miles if you often drive in rural areas or remote places that are far from roadside assistance services. If you mostly drive in the city or suburbs where you could get help quickly, you could go as long as 100,000 miles before changing the belt.

Be sure to write down the belt change in your vehicle's service records.

For more, please check out all of my 2018-2023 Jeep Wrangler DIY Maintenance Guides.
 

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