Jeep Genuine Mopar Pulleys

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Jeeps have developed a stellar reputation for being able to handle the most unforgiving terrain. To keep your Jeep ready for any type of driving condition, it is advisable to keep every performance part in optimum condition, including the belts, tensioners, and pulleys. Jeeps Are Us offers an array of genuine Mopar pulleys that are compatible with select model-years of the Jeep, Chrysler, Dodge, and Ram. 

Keep Your Jeep’s Belt System in Optimum Condition with Replacement Pulleys 

A vehicle is made up of different components. Some of the more recognizable components include the engine, braking system, batteries, and tires. Some parts—while much smaller in size and less well known—are just as important. Keeping your Jeep running like a well-oiled machine requires you to take good care of these smaller, lesser-known components. 

One of these parts is the pulley. Many of your Jeep’s parts need this component to function properly. Pulleys transfer energy from one part of the vehicle to another. For example, your car’s engines require crankshaft pulleys, idler and/or tensioning pulleys, and a few others. Pulleys in bad condition can make your car less efficient, or in some cases, prevent it from running at all.

Shop for OEM Mopar Pulleys at Jeeps Are Us 

Looking for 100% authentic Mopar pulleys for sale? If the answer is yes, then look no further than Jeeps Are Us. We sell pulleys for the following parts: the idler, power steering pump, crankshaft, A/C compressor, water pump, timing belt, and fans. All of our Mopar parts and accessories are brand new, and we strictly avoid selling used and aftermarket products. 

Jeeps Are Us is the top online retailer if you’re looking for brand new Mopar parts and accessories for your Jeep. Aside from guaranteeing superb quality and accurate vehicle fitment, our products also retail for less than the manufacturer’s suggested retail price, which means you’ll enjoy great savings.

Pulley
Part Number: 68027603AA
Description: Jeep Wrangler 2008-2010 Pulley Tensioner, RIGHT. Export part allow 4 days to ship No refund, return, exchange or cancellation More Info
MSRP $78.80
$54.81
MSRP $78.80
$54.81
Pulley
Part Number: 68125485AA
Other Names: Bracket More Names
Replaces: 68012463AA
Notes: Engines: 3.0L V6 Turbo Diesel Engine. More Notes
Fits:
  • Dodge:
    • Sprinter 2500,
    • Sprinter 3500
MSRP $96.85
$67.40
MSRP $96.85
$67.40
Idler Pulley
Part Number: 4627506AA
Other Names: 04627506aa, Pulley More Names
Replaces: 5184638AC, 5184638AD
Description: Grand Cherokee Idler Pulley - REPLACED BY PULLEY 5281301AA + BOLT 6510429AA More Info
Notes: Engines: 3.6L Mid V6 Engine. 3.6l v6 vvt engine. More Notes
Fits:
  • Chrysler:
    • 200,
    • 300,
    • Town & Country
  • Dodge:
    • Avenger,
    • Challenger,
    • Charger,
    • Durango,
    • Grand Caravan,
    • Journey
  • Jeep:
    • Grand Cherokee
  • Ram:
    • C/V
  • 6 more
MSRP $38.95
$27.09
MSRP $38.95
$27.09
Idler Pulley
Part Number: 4792112ae
Other Names: 04792112ae, Pulley More Names
Replaces: 4792112, 4792112AD
Description: Power Steering and Alternator Belt. More Info
Fits:
  • Chrysler:
    • 300M,
    • Concorde
  • Dodge:
    • Dakota,
    • Intrepid
  • Jeep:
    • Cherokee,
    • Wrangler
  • 1 more
MSRP $41.90
$29.12
MSRP $41.90
$29.12
Idler Pulley
Part Number: 5281301AA
Other Names: 05281301aa, Pulley More Names
Replaces: 4627509AA
Description: Jeep Grand Cherokee Idler Pulley PLEASE ALSO ORDER BOLT 6510429AA This replaces pulley 46217506AA More Info
Notes: Engines: 3.6L V6 24V VVT Engine Upg I w/ESS. 3.6L V6 24V VVT Engine Upgrade I. 3.6L V6 PHEV Hybrid Engine. More Notes
Fits:
  • Chrysler:
    • 200,
    • 300,
    • Pacifica,
    • Town & Country,
    • Voyager
  • Dodge:
    • Avenger,
    • Challenger,
    • Charger,
    • Durango,
    • Grand Caravan,
    • Journey
  • Jeep:
    • Cherokee,
    • Grand Cherokee,
    • Grand Cherokee L
  • Ram:
    • 1500,
    • 1500 Classic,
    • C/V,
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
  • 15 more
MSRP $52.25
$36.37
MSRP $52.25
$36.37
Idler Pulley
Part Number: 4781569AB
Other Names: Idler Pulley, Timing Belt, 04781569ab, Pulley More Names
Replaces: 4781569AA
Description: Double Bearing. With Bolt. Includes Bolt. More Info
Notes: Engines: Engine - 2.4l i4 dohc 16v h.o. 2.4l 4 cyl dohc 16v ho turbo engine. 2.4l 4 cyl dohc 16v smpi engine. More Notes
Fits:
  • Chrysler:
    • PT Cruiser,
    • Sebring,
    • Voyager
  • Dodge:
    • Caravan,
    • Neon,
    • Stratus
  • Jeep:
    • Liberty,
    • Wrangler
  • 3 more
MSRP $66.25
$46.11
MSRP $66.25
$46.11
Idler Pulley
Part Number: 4891720AA
Other Names: 04891720aa, Pulley More Names
Replaces: 53013928AA, 68061368AA
Description: Smooth. Backside idler. More Info
Notes: Engines: 3.8l v6 smpi engine. All 5.7L 8Cyl Gas Engines. 3.5L High Output V6 24V MPI Engine. 5.7l v8 hemi vvt engine. 6.4l v8... More Notes
Fits:
  • Chrysler:
    • 300,
    • Aspen,
    • Pacifica,
    • Sebring,
    • Town & Country
  • Dodge:
    • Avenger,
    • Challenger,
    • Charger,
    • Durango,
    • Grand Caravan,
    • Journey,
    • Magnum,
    • Nitro,
    • Ram 1500,
    • Ram 2500,
    • Ram 3500
  • Jeep:
    • Commander,
    • Grand Cherokee,
    • Grand Cherokee L,
    • Wrangler
  • Ram:
    • 1500,
    • 1500 Classic,
    • 2500,
    • 3500
  • 19 more
MSRP $48.90
$33.99
MSRP $48.90
$33.99
Idler Pulley
Part Number: 4891797AB
Positions: Upper
Other Names: Idler Pulley, Upper, 04891797ab, Pulley More Names
Replaces: 4891797AA
Description: Upper. More Info
Notes: Engines: 1.8l 4 cyl dohc 16v dual vvt engine. 2.0l 4 cyl dohc 16v dual vvt engine. 2.4l 4 cyl dohc 16v dual vvt engine. 2.4l 4 cyl... More Notes
Fits:
  • Chrysler:
    • 200,
    • Sebring
  • Dodge:
    • Avenger,
    • Caliber,
    • Journey
  • Jeep:
    • Compass,
    • Patriot
  • 2 more
MSRP $33.20
$23.08
MSRP $33.20
$23.08
Tensioner Pulley
Part Number: 5080319AA
Other Names: 05080319aa, Pulley More Names
Description: Diesel. Smooth. More Info
Notes: Engines: 2.7L I5 Turbo Diesel Engine.
Transmissions: 5-Speed Auto W5A380 Transmission. More Notes
Fits:
  • Dodge:
    • Sprinter 2500,
    • Sprinter 3500
MSRP $94.20
$65.54
MSRP $94.20
$65.54
Alternator Pulley
Part Number: 5117591AA
Other Names: 05117591aa, Pulley More Names
Description: Except 150 AMP Alternator. 90 amp. More Info
Notes: Engines: Engine-2.7L I5 Mercedes Turbo Diesel.
Transmissions: 5-Speed Auto W5A380 Transmission. More Notes
Fits:
  • Dodge:
    • Sprinter 2500,
    • Sprinter 3500
MSRP $260.00
$180.96
MSRP $260.00
$180.96
Idler Pulley
Part Number: 53010228AB
Other Names: Pulley More Names
Fits:
  • Jeep:
    • Cherokee
MSRP $27.40
$19.02
MSRP $27.40
$19.02
Idler Pulley
Part Number: 53013926AA
Other Names: Pulley More Names
Notes: Engines: 4.0l v6 sohc engine. More Notes
Fits:
  • Dodge:
    • Nitro
MSRP $25.05
$17.40
MSRP $25.05
$17.40
Pulley Bolt
Part Number: 68025879AA
Other Names: Bolt More Names
Notes: Engines: All 4.7L V8 Engines. 2.8L 4 Cyl Turbo Diesel Engine. 3.6L Mid V6 Engine. 2.8L I4 Turbo Diesel Engine. 3.6L V6 24V VVT... More Notes
Fits:
  • Chrysler:
    • 200,
    • 300,
    • Town & Country
  • Dodge:
    • Avenger,
    • Challenger,
    • Charger,
    • Dakota,
    • Durango,
    • Grand Caravan,
    • Journey,
    • Ram 1500
  • Fiat:
    • 500
  • Jeep:
    • Grand Cherokee
  • Ram:
    • 1500,
    • 2500,
    • 3500,
    • C/V,
    • Dakota
  • 13 more
MSRP $2.20
$1.51
MSRP $2.20
$1.51
Idler Pulley
Part Number: 68382306AA
Other Names: Pulley More Names
Description: Includes Bolt, Pulley And Dust Shield. More Info
Notes: Engines: 2.0l i4 dohc di turbo engine w/ ess. More Notes
Fits:
  • Jeep:
    • Cherokee,
    • Grand Cherokee,
    • Wrangler
MSRP $22.75
$15.78
MSRP $22.75
$15.78
Idler Pulley
Part Number: 68397345AA
Other Names: Pulley More Names
Description: Includes Bolt, Pulley And Dust Shield. More Info
Notes: Engines: 2.0l i4 dohc di turbo engine w/ bsg. 2.0L I4 DOHC DI Turbo eTorque Engine. More Notes
Fits:
  • Jeep:
    • Wrangler
MSRP $31.10
$21.63
MSRP $31.10
$21.63
Idler Pulley
Part Number: 68459077AA
Other Names: Pulley More Names
Replaces: 4593848AA, 4593985AA, 4627851AA
Description: Grooved. Hcd]. More Info
Notes: Engines: 4.7l v8 ffv engine. 2.0l i4 dohc engine. 5.7l hemi vct engine. 5.7l v8 hemi mds vct engine. 2.7L V6 DOHC 24 Valve MPI... More Notes
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Challenger,
    • Charger,
    • Dart,
    • Durango,
    • Magnum
  • Jeep:
    • Cherokee,
    • Gladiator,
    • Grand Cherokee,
    • Grand Cherokee L,
    • Wrangler
  • Ram:
    • 1500,
    • 1500 Classic
  • 8 more
MSRP $48.90
$33.99
MSRP $48.90
$33.99
Tensioner Pulley
Part Number: 68518700AA
Other Names: Tensioner More Names
Notes: Engines: 3.6L V6 24V VVT eTorque Engine Upg I. More Notes
Fits:
  • Jeep:
    • Wrangler
  • Ram:
    • 1500
MSRP $70.05
$48.72
MSRP $70.05
$48.72
Fan Pulley
Part Number: 4429946
Other Names: 04429946, Pulley More Names
Fits:
  • Dodge:
    • Ram 2500,
    • Ram 3500
MSRP $148.00
$102.95
MSRP $148.00
$102.95
Idler Pulley
Part Number: 4792581AC
Other Names: 04792581ac, Pulley More Names
Replaces: 4792581AA, 4792581AB, 5037086AA
Notes: Engines: Engine - 3.3l v6 smpi. 3.3l v6 ohv engine. 3.8l v6 ohv engine. 8.4l v10 fp sfi engine. 8.4l v10 sfi engine. More Notes
Fits:
  • Chrysler:
    • Town & Country,
    • Voyager
  • Dodge:
    • Caravan,
    • Grand Caravan,
    • Ram 1500,
    • Viper
  • 1 more
MSRP $27.35
$19.02
MSRP $27.35
$19.02
Pulley Cap
Part Number: 4792875AA
Other Names: 04792875aa, Cap-Pulley More Names
Notes: Engines: All 5.7L 8Cyl Gas Engines. 2.7L V6 DOHC 24 Valve MPI Engine. 3.5L High Output V6 24V MPI Engine. 5.7L Hemi Multi... More Notes
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Charger,
    • Magnum
  • Jeep:
    • Commander,
    • Grand Cherokee
MSRP $1.60
$1.10
MSRP $1.60
$1.10
Idler Pulley
Part Number: 4891596AC
Positions: Upper, Lower
Other Names: Idler Pulley, Lower, 04891596ac, Pulley More Names
Replaces: 4891596AB
Description: Lower. More Info
Notes: Engines: 1.8l 4 cyl dohc 16v dual vvt engine. 2.0l 4 cyl dohc 16v dual vvt engine. 2.4l 4 cyl dohc 16v dual vvt engine. 2.4l 4 cyl... More Notes
Fits:
  • Chrysler:
    • 200,
    • Sebring
  • Dodge:
    • Avenger,
    • Caliber,
    • Journey
  • Jeep:
    • Compass,
    • Patriot
  • 2 more
MSRP $33.20
$23.08
MSRP $33.20
$23.08
Tensioner Pulley
Part Number: 5117691AA
Other Names: 05117691aa, Pulley More Names
Replaces: 5103991AA
Description: Pulley. More Info
Notes: Engines: Engine-2.7L I5 Mercedes Turbo Diesel.
Transmissions: 5-Speed Auto W5A380 Transmission. More Notes
Fits:
  • Dodge:
    • Sprinter 2500,
    • Sprinter 3500
MSRP $83.25
$57.94
MSRP $83.25
$57.94
Pulley Bracket
Part Number: 5281457AA
Other Names: 05281457aa, Bracket More Names
Notes: Engines: 3.6l v6 24v vvt engine upg i w/ess. More Notes
Fits:
  • Jeep:
    • Gladiator,
    • Wrangler
MSRP $25.80
$17.92
MSRP $25.80
$17.92
Idler Pulley
Part Number: 5281677AA
Other Names: 05281677aa, Pulley More Names
Description: With Dust Shield. More Info
Notes: Engines: 5.7l v8 hemi cng engine. 5.7l v8 hemi vvt engine. 6.4l heavy duty v8 hemi with mds. More Notes
Fits:
  • Ram:
    • 2500,
    • 3500
MSRP $24.45
$16.99
MSRP $24.45
$16.99
Idler Pulley
Part Number: 5281821AA
Other Names: 05281821aa, Pulley More Names
Notes: Engines: 3.6l v6 24v vvt engine upg i w/ess. More Notes
Fits:
  • Jeep:
    • Gladiator,
    • Wrangler
MSRP $24.45
$16.99
MSRP $24.45
$16.99
Idler Pulley
Part Number: 53009508
Other Names: Pulley More Names
Description: Idler. More Info
Fits:
  • Dodge:
    • Dakota,
    • Durango,
    • Ram 1500,
    • Ram 2500,
    • Ram 3500,
    • Viper
  • 1 more
MSRP $20.20
$14.04
MSRP $20.20
$14.04
Idler Pulley
Part Number: 53010230AC
Other Names: Pulley More Names
Replaces: 53010230, 53010230AB
Description: IDLER More Info
Fits:
  • Dodge:
    • Dakota
  • Jeep:
    • Cherokee,
    • Wrangler
MSRP $68.50
$47.62
MSRP $68.50
$47.62
Idler Pulley
Part Number: 53034002AA
Other Names: Pulley More Names
Description: Grooved. More Info
Notes: Engines: 3.8l v6 smpi engine. 5.7l v8 hemi vvt engine. 3.6l v6 24v vvt engine upg i w/ess. 3.0l v6 24v vvt engine. 3.6l v6 24v vvt... More Notes
Fits:
  • Dodge:
    • Ram 2500,
    • Ram 3500
  • Jeep:
    • Wrangler,
    • Wrangler JK
  • Ram:
    • 3500
MSRP $71.55
$49.76
MSRP $71.55
$49.76
Tensioner Pulley
Part Number: 68012421AA
Other Names: Pulley More Names
Notes: Engines: 3.0L V6 Turbo Diesel Engine. More Notes
Fits:
  • Dodge:
    • Sprinter 2500,
    • Sprinter 3500
MSRP $35.00
$24.36
MSRP $35.00
$24.36
Idler Pulley
Part Number: 68058372AA
Other Names: Pulley More Names
Replaces: 53032129AA, 53032645AA, 53032645AC
Fits:
  • Chrysler:
    • Aspen
  • Dodge:
    • Durango,
    • Ram 1500,
    • Ram 2500,
    • Ram 3500
MSRP $85.35
$59.39
MSRP $85.35
$59.39
Idler Pulley
Part Number: 68433354AA
Positions: Rear
Other Names: Idler Pulley, Export, Tensioner More Names
Replaces: 4627532AA
Description: Smooth. Backside Idler. More Info
Notes: Engines: 6.4l v8 srt hemi mds engine. 2.4L I4 Zero Evap M-Air Engine. 2.4L I4 MultiAir Engine. 2.4L I4 PZEV M-Air Engine. 3.6l v6... More Notes
Fits:
  • Chrysler:
    • 200,
    • Pacifica,
    • Voyager
  • Fiat:
    • 500X
  • Jeep:
    • Cherokee,
    • Renegade,
    • Wrangler
  • Ram:
    • ProMaster City
  • 3 more
MSRP $14.40
$9.98
MSRP $14.40
$9.98
Idler Pulley
Part Number: 4627039AA
Positions: Left, Right
Other Names: Idler Pulley, Left, Idler Pulley, Right, 04627039aa, Pulley More Names
Description: Smooth. More Info
Notes: Engines: 3.6l v6 24v vvt engine upg i w/ess. 3.0l v6 24v vvt engine. 3.6l v6 24v vvt engine. More Notes
Fits:
  • Jeep:
    • Wrangler,
    • Wrangler JK
  • Ram:
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
MSRP $52.25
$36.37
MSRP $52.25
$36.37
Idler Pulley
Part Number: 4627312AA
Positions: Rear, Lower
Other Names: 04627312aa, Pulley More Names
Description: Smooth. Accessory Drive. Back Side. Lower Idler. More Info
Notes: Engines: 3.0L V6 Turbo Diesel Engine. 2.0l i4 dohc engine. 2.0l i4 pzev dohc wge engine. 2.4l i4 multiair engine. 2.4L I4 MultiAir... More Notes
Fits:
  • Chrysler:
    • 200
  • Dodge:
    • Dart
  • Jeep:
    • Cherokee,
    • Compass,
    • Renegade
  • Ram:
    • 1500,
    • 1500 Classic,
    • ProMaster City
  • 3 more
MSRP $32.30
$22.45
MSRP $32.30
$22.45
Idler Pulley
Part Number: 4663534
Other Names: 04663534, Pulley More Names
Fits:
  • Chrysler:
    • 300M,
    • Concorde
  • Dodge:
    • Intrepid
MSRP $41.05
$28.54
MSRP $41.05
$28.54
Idler Pulley
Part Number: 4792836AA
Other Names: Screw, 04792836aa, Pulley More Names
Replaces: 6507720AA
Description: Ribbed. Pulley to Timing Cover. More Info
Fits:
  • Chrysler:
    • 300
  • Dodge:
    • Charger,
    • Magnum
MSRP $30.00
$20.88
MSRP $30.00
$20.88
Idler Pulley
Part Number: 68000833AD
Other Names: Pulley More Names
Replaces: 5086748AA, 68000833AA, 68000833AB, 68000833AC
Notes: Engines: 5.9L HO Cummins Turbo Diesel Engine. 6.7L Cummins Turbo Diesel Engine. 6.7L I6 Cummins HO Turbo Diesel Eng. 6.7L I6... More Notes
Fits:
  • Dodge:
    • Ram 2500,
    • Ram 3500
  • Ram:
    • 2500,
    • 3500
MSRP $169.00
$117.16
MSRP $169.00
$117.16
Idler Pulley
Part Number: 68018072AA
Other Names: Pulley More Names
Replaces: 5175589AA, 5175589AB
Description: IDLER More Info
Notes: Engines: 3.0L V6 Turbo Diesel Engine.
Transmissions: 5-Spd Auto W5J400 Transmission. More Notes
Fits:
  • Dodge:
    • Sprinter 2500,
    • Sprinter 3500
  • Jeep:
    • Grand Cherokee
MSRP $90.65
$63.05
MSRP $90.65
$63.05
Idler Pulley
Part Number: 68095472AA
Other Names: Pulley More Names
Notes: Engines: 3.0L I4 F1C Turbo Diesel Engine.
Transmissions: 6-Speed Dual Active Drive Trans. More Notes
Fits:
  • Ram:
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
MSRP $103.00
$71.51
MSRP $103.00
$71.51
Alternator Pulley
Part Number: 68101930AA
Other Names: Pulley More Names
Notes: Engines: 3.0L I4 F1C Turbo Diesel Engine.
Transmissions: 6-Speed Dual Active Drive Trans. More Notes
Fits:
  • Ram:
    • ProMaster 1500,
    • ProMaster 2500,
    • ProMaster 3500
MSRP $73.90
$51.39
MSRP $73.90
$51.39
Idler Pulley
Part Number: 68164932AD
Other Names: Pulley More Names
Replaces: 68164932AC
Notes: Engines: 6.2L Supercharged HEMI V8 SRT Engine. 6.2L V8 Supercharged HO Engine. More Notes
Fits:
  • Dodge:
    • Challenger,
    • Charger,
    • Durango
  • Jeep:
    • Grand Cherokee
  • Ram:
    • 1500
MSRP $97.90
$68.09
MSRP $97.90
$68.09
Pulley Bolt
Part Number: 68166497AA
Other Names: Bolt More Names
Notes: Engines: 6.2L V8 Supercharged HO Engine. 1.4L I4 16V MultiAir Turbo Engine. More Notes
Fits:
  • Chrysler:
    • Pacifica,
    • Voyager
  • Dodge:
    • Challenger,
    • Charger,
    • Dart
MSRP $4.40
$3.02
MSRP $4.40
$3.02
Idler Pulley
Part Number: 68483661AA
Other Names: Pulley More Names
Notes: Engines: 6.4L V8 Engine. 3.0L V6 Turbo Diesel Engine Gen 3. 5.7L V8 HEMI MDS VVT Engine. More Notes
Fits:
  • Jeep:
    • Grand Cherokee,
    • Grand Cherokee L,
    • Grand Wagoneer
  • Ram:
    • 1500,
    • 1500 Classic
MSRP $20.75
$14.44
MSRP $20.75
$14.44
Pulley Bolt
Part Number: 68518738AA
Other Names: Bolt More Names
Notes: Engines: 3.6L V6 24V VVT eTorque Engine Upg I. 5.7L V8 HEMI MDS VVT eTorque Engine. More Notes
Fits:
  • Jeep:
    • Wagoneer,
    • Wrangler
  • Ram:
    • 1500
MSRP $3.30
$2.26
MSRP $3.30
$2.26
Idler Pulley
Part Number: 4854092AC
Other Names: 04854092ac, Pulley More Names
Replaces: 4854092, 4854092AB
Description: IDLER More Info
Fits:
  • Jeep:
    • Grand Cherokee,
    • Wrangler
MSRP $50.45
$35.09
MSRP $50.45
$35.09
Crankshaft Pulley
Part Number: 5037204AB
Other Names: 05037204ab, Pulley More Names
Replaces: 5037204AA
Notes: Engines: 8.3l v10 sfi engine. More Notes
Fits:
  • Dodge:
    • Ram 1500,
    • Viper
MSRP $127.00
$87.23
MSRP $127.00
$87.23
Idler Pulley
Part Number: 5281596AA
Other Names: 05281596aa, Pulley More Names
Notes: Engines: 3.6l v6 24v vvt engine upg i w/bsg. 3.6L V6 24V VVT eTorque Engine Upg I. More Notes
Fits:
  • Jeep:
    • Wrangler
  • Ram:
    • 1500
MSRP $52.25
$36.31
MSRP $52.25
$36.31
Idler Pulley
Part Number: 53013324AA
Other Names: Pulley More Names
Fits:
  • Jeep:
    • Liberty,
    • Wrangler
MSRP $44.40
$30.86
MSRP $44.40
$30.86

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Frequently Asked Questions: Pulleys

What are pulleys on a car?

Vehicle pulleys are essential components mounted in your engine. Car pulleys can either spin freely or power an accessory or another component in your engine. These components ensure the proper tension and alignment of the engine drive belt. Some pulleys can also power multiple components at once like AC compressors, clutch mechanisms, and the like.

How do pulleys work on my vehicle?

The crank pulley on your crankshaft will power most auto pulleys as it rotates. As the crank pulley spins, V-belts or serpentine belts will allow the other pulleys to move. The pulleys also guide your engine drive belt and maintain its proper tension.

What are the types of auto pulleys?

Your engine has a crank pulley and a set of accessory pulleys. A serpentine belt or V-belt drives the crank pulley, letting it power accessory pulleys. Meanwhile, accessory pulleys help your alternator, power steering, air conditioning system, and other parts of your engine run as you drive.

What are the signs of a faulty car pulley?

The pulleys in your vehicle can experience various issues depending on their type. For instance, a failing idler pulley can produce squealing noises, rotate too much, or become loose during operation. A shaky or improper belt movement or visible wear on your pulleys can mean that you already need to replace your engine pulleys.

When should I replace my vehicle’s pulleys?

If you’re changing a worn or damaged drive belt, it’s also vital to check if your pulleys also need to be replaced. If your car’s pulleys have damaged the drive belt, replacing both parts should be done right away to maintain optimal engine operation.