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Alternators, Batteries & Starters
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OEM (Genuine) Pulley
PartNumber: 31141-RAA-A01
Product Specifications- Item Dimensions: 5.4 x 4.8 x 3.9 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley
$66.49 MSRP:$93.93You Save: $27.44 (30%)
Dorman® Alternator Pulley
PartNumber: 300-877Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 021903119J, 021903119L
- Outside Diameter (In): 2.4"
- Pulley Type/Grooves: Serpentine
- UPC: 037495704977
- Part Description: Alternator Pulley
$281.28
OEM (Genuine) Pulley Complete Decou
PartNumber: 31141-5X6-J01
Product Specifications- Item Dimensions: 4.4 x 4.6 x 4.5 inches
- Item Weight: 1.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley Complete Decou
$100.97 MSRP:$142.63You Save: $41.66 (30%)
Dorman® Alternator Pulley
PartNumber: 300-876Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 6111550315, 6111550515, 6111550715
- Outside Diameter (In): 2.13"
- Pulley Type/Grooves: Serpentine
- UPC: 037495704960
- Part Description: Alternator Pulley
$124.20
Dayco® Alternator Decoupler Pulley
PartNumber: 892015Product Specifications- UPC: 036687821928
- Part Description: Alternator Decoupler Pulley
$115.59
OEM (Genuine) Pulley Complete, Decou
PartNumber: 31141-5A2-A01
Product Specifications- Item Dimensions: 2.6 x 2.5 x 1.5 inches
- Item Weight: 1.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley Complete, Decou
$106.85 MSRP:$150.93You Save: $44.08 (30%)
Dorman® Alternator Pulley
PartNumber: 300-871Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 028903119AA
- Outside Diameter (In): 2.17"
- Pulley Type/Grooves: Serpentine
- UPC: 037495704915
- Part Description: Alternator Pulley
$117.71
Gates® Alternator Decoupler Pulley
PartNumber: 37168PProduct Specifications- Bearing Bore Inside Diameter 1: 17mm
- Contact Surface: V-Ribbed Grooved
- Contents: Pulley, Dust Cap
- Flanged: Yes
- Material: Steel
- Number of Grooves: 6
- OE Comparison Rating: OE Exact
- Outside Diameter: 55mm
- Required Tool Part Number: 91024-1
- UPC: 770075608349
- Width: 37.5mm.
- Part Description: Alternator Decoupler Pulley
$172.78
Dayco® Alternator Decoupler Pulley
PartNumber: 892009Product Specifications- UPC: 036687815415
- Part Description: Alternator Decoupler Pulley
$133.46
Dorman® Alternator Pulley
PartNumber: 300-868Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: LF1818330, LF1818330A
- Outside Diameter (In): 2.43"
- Pulley Type/Grooves: Serpentine
- UPC: 037495704885
- Part Description: Alternator Pulley
$126.48
Gates® Alternator Decoupler Pulley
PartNumber: 37165PProduct Specifications- Bearing Bore Inside Diameter 1: 17mm
- Contact Surface: V-Ribbed Grooved
- Contents: Pulley, Dust Cap
- Flanged: Yes
- Material: Steel
- Number of Grooves: 6
- OE Comparison Rating: OE Exact
- Outside Diameter: 60mm
- Required Tool Part Number: 91024-1
- UPC: 770075608363
- Width: 37.5mm.
- Part Description: Alternator Decoupler Pulley
$158.75
OEM (Genuine) Pulley, Decoupler
PartNumber: 31141-RV0-A01
Product Specifications- Other Names: Pulley
- Item Dimensions: 3.1 x 2.9 x 1.8 inches
- Item Weight: 1.90 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley, Decoupler
$101.35 MSRP:$143.17You Save: $41.82 (30%)
Dorman® Alternator Pulley
PartNumber: 300-881Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 06B903016P, 06B903119B, 06B903119D
- Outside Diameter (In): 2.4"
- Pulley Type/Grooves: Serpentine
- UPC: 037495705004
- Part Description: Alternator Pulley
$228.22
Gates® Alternator Decoupler Pulley
PartNumber: 37103PProduct Specifications- Bearing Bore Inside Diameter 1: 17mm
- Contact Surface: V-Ribbed Grooved
- Contents: Pulley, Dust Cap
- Flanged: Yes
- Material: Steel
- Number of Grooves: 6
- OE Comparison Rating: OE Exact
- Outside Diameter: 55mm
- UPC: 770075461234
- Width: 40.5mm.
- Part Description: Alternator Decoupler Pulley
$155.25
Dayco® Alternator Decoupler Pulley
PartNumber: 892014Product Specifications- UPC: 036687821904
- Part Description: Alternator Decoupler Pulley
$72.57
OEM (Genuine) Pulley-Idler
PartNumber: 11927-AL500
Product Specifications- Other Names: Idler Pulley, Tension Pulley
- Item Dimensions: 4.0 x 3.8 x 1.7 inches
- Item Weight: 1.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley-Idler
$62.87 MSRP:$86.25You Save: $23.38 (28%)
Dorman® Alternator Pulley
PartNumber: 300-857Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.57
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 3730025201, 3732125201
- Outside Diameter (In): 2.52"
- Pulley Type/Grooves: Serpentine
- UPC: 019495487722
- Part Description: Alternator Pulley
$102.31
OEM (Genuine) Pulley
PartNumber: 31141-RGM-A01
Product Specifications- Item Dimensions: 4.5 x 3.3 x 2.3 inches
- Item Weight: 1.00 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley
$46.90 MSRP:$66.25You Save: $19.35 (30%)
Dorman® Alternator Pulley
PartNumber: 300-873Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 9404328
- Outside Diameter (In): 2.43"
- Pulley Type/Grooves: Serpentine
- UPC: 037495704939
- Part Description: Alternator Pulley
$89.78
Dayco® Alternator Decoupler Pulley
PartNumber: 892005Product Specifications- UPC: 036687815330
- Part Description: Alternator Decoupler Pulley
$59.52
OEM (Genuine) Pulley
PartNumber: 31141-RNA-A01
Product Specifications- Item Dimensions: 2.5 x 2.7 x 1.6 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley
$43.26 MSRP:$61.12You Save: $17.86 (30%)
Dorman® Alternator Pulley
PartNumber: 300-883Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 07K903119, 07K903119A
- Outside Diameter (In): 2.4"
- Pulley Type/Grooves: Serpentine
- UPC: 037495705028
- Part Description: Alternator Pulley
$108.55
Dayco® Alternator Decoupler Pulley
PartNumber: 892003Product Specifications- UPC: 036687815293
- Part Description: Alternator Decoupler Pulley
$57.17
OEM (Genuine) Pulley
PartNumber: 27415-0T031
Product Specifications- Other Names: Pulley
- Item Weight: 1.00 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley
$90.97 MSRP:$132.17You Save: $41.20 (32%)
Dorman® Alternator Pulley
PartNumber: 300-862Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 6421500360
- Outside Diameter (In): 2.17"
- Pulley Type/Grooves: Serpentine
- UPC: 037495704847
- Part Description: Alternator Pulley
$106.13
OEM (Genuine) Pulley
PartNumber: 27411-28060
Product Specifications- Item Weight: 0.80 Pounds
- Part Description: Pulley
$30.87 MSRP:$44.48You Save: $13.61 (31%)
Dorman® Alternator Pulley
PartNumber: 300-856Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.55
- Color/Finish: Black and Silver
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 4801475AA, 51383490AA, 53034049AA
- Outside Diameter (In): 2.47"
- Pulley Type/Grooves: Serpentine
- UPC: 019495487715
- Part Description: Alternator Pulley
$93.02
Gates® Alternator Decoupler Pulley
PartNumber: 37057PProduct Specifications- Bearing Bore Inside Diameter 1: 17mm
- Contact Surface: V-Ribbed Grooved
- Contents: Pulley, Dust Cap
- Material: Steel
- Number of Grooves: 6
- OE Comparison Rating: OE Exact
- Outside Diameter: 50mm
- Required Tool Part Number: 91024-1
- UPC: 770075623847
- Width: 39mm.
- Part Description: Alternator Decoupler Pulley
$122.18
OEM (Genuine) Pulley
PartNumber: F5AZ-10344-A
Product Specifications- Item Dimensions: 3.1 x 1.7 x 2.6 inches
- Item Weight: 1.00 Pounds
- Fitment Type: Direct Replacement
- Replaces: F4RZ-10344-A
- Part Description: Pulley
$10.71 MSRP:$16.76You Save: $6.05 (37%)
Dorman® Alternator Pulley
PartNumber: 300-869Product Specifications- Attachment Method: Bolt-on
- Bore Size: 0.67
- Color/Finish: Black
- Installation Hardware Included: No
- Material: Steel
- OE Part Number: 3W3U10300AA, 3W3Z10346AA, 3W3Z10V346AARM, 3Z3U10346AA, VP3W3U10A352AA
- Outside Diameter (In): 2.52"
- Pulley Type/Grooves: Serpentine
- UPC: 037495704892
- Part Description: Alternator Pulley
$88.85
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Next >About Alternator Pulley
The alternator pulley is a component that allows the vehicle's alternator to be controlled by a belt. Whether it be a v-type belt or a serpentine drive belt, the alternator gets the current it needs from the belt's rotation.
Alternator pulley principlesThe purpose of the alternator is to supply a charging procedure for the vehicle's electronics. The alternator that is in every vehicle is operated by a belt, and any type of fan belt the user uses will be compatible with the alternator pulley. The alternator pulley is usually attached to the main shaft of the alternator.
The use of the alternator pulley is to transfer torque to the alternator. Modern cars use a single belt to drive all the parts, while older vehicles need a total of three separate belts. With an increase in features that are power-operated, the workload for the alternator has intensified. This leads to a bigger and more powerful alternator, but it also requires a different drive system.
Common issues with the alternator pulleyA bad alternator pulley can lead to vibrations and noises may occur.
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