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Alternator Pulley
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Alternators, Batteries & Starters
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OEM (Genuine) Pulley
PartNumber: 31141-RAA-A01$66.49 MSRP:$93.93You Save: $27.44 (30%)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
Dorman® Alternator Pulley
PartNumber: 300-877$281.28Product 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
OEM (Genuine) Pulley Complete Decou
PartNumber: 31141-5X6-J01$100.97 MSRP:$142.63You Save: $41.66 (30%)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
Dorman® Alternator Pulley
PartNumber: 300-876$124.20Product 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
Dayco® Alternator Decoupler Pulley
PartNumber: 892015$115.59Product Specifications- UPC: 036687821928
- Part Description: Alternator Decoupler Pulley
$106.85 MSRP:$150.93You Save: $44.08 (30%)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
Dorman® Alternator Pulley
PartNumber: 300-871$117.71Product 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
Gates® Alternator Decoupler Pulley
PartNumber: 37168P$172.78Product 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
Dayco® Alternator Decoupler Pulley
PartNumber: 892009$133.46Product Specifications- UPC: 036687815415
- Part Description: Alternator Decoupler Pulley
Dorman® Alternator Pulley
PartNumber: 300-868$126.48Product 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
Gates® Alternator Decoupler Pulley
PartNumber: 37165P$158.75Product 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
OEM (Genuine) Pulley, Decoupler
PartNumber: 31141-RV0-A01$101.35 MSRP:$143.17You Save: $41.82 (30%)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
Dorman® Alternator Pulley
PartNumber: 300-881$228.22Product 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
Gates® Alternator Decoupler Pulley
PartNumber: 37103P$155.25Product 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
Dayco® Alternator Decoupler Pulley
PartNumber: 892014$72.57Product Specifications- UPC: 036687821904
- Part Description: Alternator Decoupler Pulley
OEM (Genuine) Pulley-Idler
PartNumber: 11927-AL500$62.87 MSRP:$86.25You Save: $23.38 (28%)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
Dorman® Alternator Pulley
PartNumber: 300-857$102.31Product 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
OEM (Genuine) Pulley
PartNumber: 31141-RGM-A01$46.90 MSRP:$66.25You Save: $19.35 (30%)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
Dorman® Alternator Pulley
PartNumber: 300-873$89.78Product 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
Dayco® Alternator Decoupler Pulley
PartNumber: 892005$59.52Product Specifications- UPC: 036687815330
- Part Description: Alternator Decoupler Pulley
OEM (Genuine) Pulley
PartNumber: 31141-RNA-A01$43.26 MSRP:$61.12You Save: $17.86 (30%)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
Dorman® Alternator Pulley
PartNumber: 300-883$108.55Product 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
Dayco® Alternator Decoupler Pulley
PartNumber: 892003$57.17Product Specifications- UPC: 036687815293
- Part Description: Alternator Decoupler Pulley
OEM (Genuine) Pulley
PartNumber: 27415-0T031$90.97 MSRP:$132.17You Save: $41.20 (32%)Product Specifications- Other Names: Pulley
- Item Weight: 1.00 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley
Dorman® Alternator Pulley
PartNumber: 300-862$106.13Product 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
OEM (Genuine) Pulley
PartNumber: 27411-28060$30.87 MSRP:$44.48You Save: $13.61 (31%)Product Specifications- Item Weight: 1.10 Pounds
- Part Description: Pulley
Dorman® Alternator Pulley
PartNumber: 300-856$93.02Product 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
Gates® Alternator Decoupler Pulley
PartNumber: 37057P$122.18Product 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
OEM (Genuine) Pulley
PartNumber: F5AZ-10344-A$10.71 MSRP:$16.76You Save: $6.05 (37%)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
Dorman® Alternator Pulley
PartNumber: 300-869$88.85Product 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
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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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