2012 jeep wrangler serpentine belt diagram

Question

Ever remove the serpentine belt and then realize you can’t remember the path it took as it snaked around all of those pulleys on the front of your engine? And worse yet, you remember that the routing diagram that was on a label stuck in the engine compartment came off the last time you pressure washed your Jeep. Not to worry, hopefully one of these will work for you.

This diagram shows the fan belt routing for a ’98 TJ, 2.5L or 4.0 L, with power steering.

This diagram shows the fan belt routing for a ’98 TJ, 2.5L or 4.0 L, with the air conditioning and power steering.

This diagram shows the fan belt routing for a ’98 TJ, 2.5L or 4.0 L, with no air conditioning and no power steering.

Ever wonder about those cracks that appear in the fan belt? Well, according to the factory manual, there are OK cracks and then there are NOT OK cracks. This drawing pretty much explains which ones are OK for you to have on yours.

Serpentine Belt Routing

Here is a routing diagram for the 2.4L engine (from an ’04 TJ) without air conditioning.

Here is a routing diagram for the 2.4L engine (from an ’04 TJ) with air conditioning. Basically, an idler pulley is removed and the air condition clutch pulley is mounted in its place.

Here is a routing diagram for the 4.0L engine (from an ’04 TJ) without air conditioning.

Here is a routing diagram for the 4.0L engine (from an ’04 TJ) with air conditioning.

How tight should a serpentine belt be on a Jeep Wrangler?

Twist your belt if you can twist it more than 90 deg it is loose. If you can't twist it 90 deg then it is too tight. RIght at 90 degrees is good to go.

jeep wrangler serpentine belt diagram