Serpentine belt replacement Guide2004 Jeep Grand Cherokee
Complete DIY repair guide with step-by-step instructions. Find exact parts on Amazon for your vehicle.
Difficulty
Easy
Time
15-25 minutes
Parts Needed
2 items
DIY Savings
$100-400+
2004 Jeep Grand Cherokee — What You Need to Know
- →3.7L V6 and 5.7L HEMI use DIFFERENT belt lengths — K060720 vs K060864
- →HEMI uses a slightly more complex routing with one additional idler pulley
- →Tensioner bolt is 15mm, rotates clockwise to release on most years
- →After battery disconnect, HEMI PCM may need idle relearn: idle with AC off for 10 minutes
Torque Specs
Tensioner bolt: 40 ft-lbs
Belt Routing
5.7L HEMI: Crankshaft → AC compressor → power steering → water pump → alternator → spring tensioner → idler. 3.7L V6: Crankshaft → AC → PS → water pump → alternator → tensioner.
Safety Warnings
- •Note routing before removal
- •Check tensioner for wear
- •Inspect all pulleys
Tools Required
15mm wrench (tensioner)
Belt routing sticker reference
Parts Needed
Belt (3.7L V6)6 rib
Shop on AmazonGates K060720
Belt (5.7L HEMI V8)6 rib — longer than V6
Shop on AmazonGates K060864
Basic Procedure Overview
- 1Verify engine (3.7L or 5.7L) and purchase correct belt
- 2Rotate 15mm tensioner clockwise to release
- 3Remove belt and route new belt per label in engine bay
- 4HEMI: extra idler pulley — use routing diagram carefully
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