Updated May 2026
Jeep Grand Cherokee Serpentine Belt Replacement Cost (2014-2026): $125 to $370
The Grand Cherokee belt service spans a $245 range across six engine options. The 3.6L Pentastar V6 (most common, ~80 percent of GC volume) is the floor at $125 to $200 belt-only. The 6.2L Hemi V8 Trackhawk supercharged hits $170 to $275, the ceiling. Most owners reading this guide have the Pentastar V6 and can expect to pay $195 to $330 for the realistic belt-plus-tensioner service at any independent shop in May 2026. The Hemi V8 5.7L is the next most common at $145 to $235 belt-only.
Belt Only
$125-$220
Pentastar V6 cheapest, Hemi V8 priciest
Belt + Tensioner
$195-$370
Recommended over 80k miles
DIY Total
$30-$55
Pentastar V6 easy, V8s moderate
What Grand Cherokee owners actually pay
RepairPal's Grand Cherokee drive belt national average sits at $130 to $165 belt-only, which represents the 3.6L Pentastar V6 at independent shops in lower cost-of-living markets. Urban independent quotes for the Pentastar run $160 to $220, and Jeep dealer quotes hit $185 to $275 belt-only. The Hemi V8 adds a consistent $20 to $40 across all shop types. The 4xe plug-in hybrid adds $15 to $25 versus the standard Pentastar because of the turbo plumbing access constraint.
Jeep dealer service is one of the more aggressive upsell environments in the industry, and the typical "drive belt service" quote on a Grand Cherokee at the dealer will bundle the idler pulley, tensioner inspection, AC compressor clutch bearing check, and visual coolant inspection, pushing the all-in number to $275 to $425. This is reasonable preventive practice on a 100,000 mile SUV but the line items inflate the headline. A Jeep-specialist independent will typically quote just the belt-and-tensioner at $195 to $330 without the additional bundled inspections, which represents better value if your vehicle is under 80,000 miles and the additional inspections are not yet warranted.
The Mopar OEM belt (Jeep part 5184652AC for the Pentastar) retails $42 to $58 at the dealer parts counter, against $32 to $48 for the Gates K060785 aftermarket equivalent. Both are manufactured to identical FCA / Stellantis engineering spec. The dealer premium on parts is modest and the dealer is the obvious choice if the vehicle is under powertrain warranty. Out of warranty, an independent saves $30 to $80 versus the dealer with no quality difference.
Cost by engine
| Engine | Shop Cost |
|---|---|
| 3.6L Pentastar V6 (2014-2026) Most common GC engine, 295 hp | $125-$200 belt / $195-$330 w/ tens. |
| 5.7L Hemi V8 (2014-2024) 360 hp, discontinued after 2024 model year | $145-$235 belt / $215-$360 w/ tens. |
| 6.4L Hemi V8 SRT (2014-2026) 475 hp, Trackhawk's smaller cousin | $160-$255 belt / $235-$365 w/ tens. |
| 6.2L Hemi V8 Trackhawk (2018-2022) 707 hp supercharged, separate SC belt at extra cost | $170-$275 belt / $245-$370 w/ tens. |
| 3.0L EcoDiesel V6 (2014-2022) Discontinued 2022, harder access | $155-$250 belt / $225-$365 w/ tens. |
| 2.0L Hurricane 4xe PHEV (2022-2026) Plug-in hybrid, 2.0L turbo + electric | $140-$225 belt / $210-$360 w/ tens. |
The Trackhawk has a supercharger belt too
The 707 horsepower Grand Cherokee Trackhawk (2018-2022) is one of the most belt-intensive vehicles on the road. In addition to the standard accessory serpentine belt ($170 to $275 belt-only), the 6.2L Hellcat Hemi V8 runs a separate supercharger drive belt that connects the crankshaft to the IHI 2.4-liter twin-screw supercharger. This second belt is not part of standard maintenance and Jeep does not list a replacement interval in the published service schedule, but performance shops universally recommend inspection at 30,000 miles and replacement at 60,000 miles to prevent supercharger drive failure under sustained boost.
Supercharger belt service is a separate $180 to $320 job on the Trackhawk and is typically only done by Mopar performance specialists or Jeep dealers with Hellcat experience. The Gates K061010 or Continental equivalent supercharger belt costs $85 to $135 at retail, against $60 to $95 for the accessory serpentine belt. Trackhawk owners reading this guide should plan total belt-maintenance budget of $350 to $590 every 60,000 to 80,000 miles for both belts plus tensioner work, significant, but proportionate to the vehicle's overall maintenance profile.
DIY on the Pentastar V6
The 3.6L Pentastar V6 is the easiest Grand Cherokee engine to DIY, and at $30 to $55 in parts versus $195 to $330 at a shop the savings are meaningful. Tools required: 15mm box-end wrench or 3/8-inch ratchet with 15mm socket on the Pentastar tensioner pulley. Belt routing diagram is on the underside of the hood. Process: photograph the installed belt, place the wrench on the tensioner pulley bolt, rotate the tensioner clockwise to relieve tension, slip the old belt off the alternator pulley, work off the remaining pulleys, route the new belt per the diagram, release the tensioner. Total time 40 to 60 minutes.
The 5.7L Hemi V8 is the same procedure with a 19mm wrench on the larger Hemi tensioner. Add 10 to 15 minutes for the V8 because the engine bay is slightly more crowded. The 4xe 2.0L Hurricane is more involved at 60 to 90 minutes because of the turbocharger plumbing that has to be navigated around. The 6.4L SRT and 6.2L Trackhawk are not recommended for first-time DIY because of supercharger and higher-output accessory complexity; both are worth taking to a Mopar performance specialist.
How the Grand Cherokee compares
The Grand Cherokee sits above the typical midsize crossover for this service because of the larger engines and longitudinal layouts. The Subaru Outback at $115 to $330 is cheaper across the board. The Jeep Wrangler at $115 to $340 is closely matched, sharing the Pentastar V6 with the Grand Cherokee. The Toyota 4Runner at $130 to $250 is similar. The Ford Explorer at $130 to $220 is slightly cheaper because the EcoBoost variants have shorter belt routing than the V8 Grand Cherokees. The Grand Cherokee pricing is appropriate to its size and engine choices; it is not unusually expensive for the segment.
Sources and methodology
Pricing reflects independent shop quotes and retail belt prices as of May 2026. Labor benchmarks from publicly cited Mitchell ProDemand and AllData figures for Jeep Grand Cherokee Pentastar V6, 5.7L Hemi, 6.4L Hemi SRT, 6.2L Hellcat, 3.0L EcoDiesel, and 4xe 2.0L Hurricane applications. Wage data from BLS series 49-3023. Belt parts from Mopar OEM (FCA/Stellantis parts lookups) and Gates Corporation aftermarket catalog. Jeep service intervals from the published WL Grand Cherokee Owner's Manual.
Frequently asked questions
How much is a Grand Cherokee serpentine belt?
Jeep Grand Cherokee serpentine belt replacement runs $125 to $220 belt-only and $195 to $370 with the tensioner at an independent shop. The 3.6L Pentastar V6 is the cheapest at $125 to $200; the 6.4L Hemi V8 SRT is the most expensive at $165 to $275. Belt parts are $32 to $58 retail. Labor is 0.5 to 0.9 hours. DIY parts $30 to $55.
Is the Hemi V8 more expensive to service than the Pentastar V6?
Yes. The 5.7L Hemi V8 runs $145 to $235 belt-only versus $125 to $200 on the 3.6L Pentastar V6. The 6.4L Hemi SRT and the 6.2L Hellcat Trackhawk both sit at $160 to $275 belt-only because of additional belt routing around the supercharger drive (Trackhawk) or higher-load accessories (SRT). The bigger engines also have slightly more crowded engine bays.
Does the Grand Cherokee have a timing belt?
No. Every Grand Cherokee from 2014 onward (WK2 and WL platforms) uses a timing chain. The 3.6L Pentastar V6, 5.7L Hemi V8, 6.4L Hemi V8 SRT, 6.2L Hellcat V8, 3.0L EcoDiesel, and the 4xe plug-in hybrid 2.0L turbo all use timing chains. The serpentine belt is the only external rubber belt requiring scheduled service.
How long does a Grand Cherokee serpentine belt last?
Jeep's published maintenance schedule for the WL Grand Cherokee lists serpentine belt inspection at 60,000 miles, with replacement only as needed. The Pentastar V6 belt typically passes inspection through 105,000 to 115,000 miles. The Hemi V8 runs slightly shorter at 90,000 to 105,000 miles because of higher accessory load. The Hellcat Trackhawk supercharger belt is a separate component with its own 60,000 mile recommended interval.
What about the 4xe plug-in hybrid?
The 4xe (2022 onward) uses the 2.0L Hurricane turbo plus electric motor architecture. Belt service runs $140 to $225 belt-only and $210 to $360 with tensioner, slightly above the standard Pentastar V6 because the 2.0L turbo plumbing crowds belt access. The hybrid drivetrain does not change the belt service procedure, no high-voltage exposure during the work because the orange cabling is routed separately.
DIY on a Grand Cherokee?
Yes on the Pentastar V6 and 5.7L Hemi V8. Difficulty 2 to 3 out of 5. Required tool: 15mm wrench on the Pentastar tensioner, 19mm on the Hemi. Belt routing diagram is on the underside of the hood. Total time 40 to 70 minutes. The Trackhawk and 6.4L SRT are best left to specialists because of supercharger and higher-output accessory complexity. DIY parts $30 to $55.