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Idler Pulley
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OEM (Genuine) Tensioner Assy., Auto
PartNumber: 31170-RAA-A02$128.62 MSRP:$181.68You Save: $53.06 (30%)Product Specifications- Other Names: Belt Tensioner, Tensioner
- Item Dimensions: 7.5 x 6.0 x 5.0 inches
- Item Weight: 3.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: Tensioner Assy., Auto
Dorman® OE Solutions Vacuum Pump Pulley
PartNumber: 300-702$80.03Product Specifications- Belt Type: Serpentine
- Color: Black
- Installation Hardware Included: No
- Installation Instructions Included: No
- Item Grade: Standard Replacement
- Material: Steel
- Mounting Hole Quantity: 1
- OE Part Number: 15589757
- Outside Diameter: 4.91
- Package Contents: 1 Vacuum Pump Pulley
- Pulley Type/Grooves: Smooth
- UPC: 019495240006
- Width: 0.98
- Part Description: OE Solutions Vacuum Pump Pulley
$173.29Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: V-Ribbed Grooved
- Material: Steel
- Number of Grooves: 6
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 2.95"
- Pulley 1 Flanged: Yes
- UPC: 072053073058
- Width: 28 mm
- Part Description: Drivealign OE Exact Drive Belt Idler Pulley
$128.92Product Specifications- Bearing Inner Diameter 1: 20
- Bearing Width: 14
- Belt Type: V-belt
- Flat: N
- Material: Steel
- Max Belt Width: 1/2 In.
- Number of Bearings: 1
- Pulley Outside Diameter: 91
- Pulley Width: 15
- UPC: 036687915290
- Part Description: No Slack Light Duty Idler Tensioner Pulley
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45030$16.36Product Specifications- Belt Type: Serpentine
- Belt Width IN: 0.875
- Belt Width MM: 22.225
- Bore Dia. IN: 0.668
- Color: Black
- Groove Quantity: 6
- I.D. MM: 26.0
- Inside Diameter: 0.90
- Material: Plastic
- Meets / Exceeds OEM: Yes
- Mount Hole Qty: 1
- Mounting Hardware: Not Included
- O.D. MM: 74.613
- Outside Diameter: 2.9375
- Pulley Type: Idler Pulley
- Pulley Width IN: 1.062
- Pulley Width MM: 26.9
- Style: Idler / Tensioner Pulley
- UPC: 096361450301
- Width: 26.9
- Part Description: Drive Belt Idler Pulley
SKF® Drive Belt Tensioner Assembly
PartNumber: ACT31002$44.84Product Specifications- Quantity Per Application: 1
- UPC: 085311485838
- Part Description: Drive Belt Tensioner Assembly
VAICO® Drive Belt Idler Pulley
PartNumber: V48-0436$47.71Product Specifications- Length [mm]: 102
- Packaging height [cm]: 6,5
- Packaging width [cm]: 10,1
- Weight [kg]: 0,242
- Part Description: Drive Belt Idler Pulley
OEM (Genuine) Pulley, Idle
PartNumber: 31190-RRA-A00$75.10 MSRP:$106.08You Save: $30.98 (30%)Product Specifications- Other Names: Pulley
- Item Dimensions: 3.2 x 3.2 x 1.1 inches
- Item Weight: 1.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: 31190-PRA-000
- Part Description: Pulley, Idle
Dorman® OE Solutions Vacuum Pump Pulley
PartNumber: 300-701$34.67Product Specifications- Belt Type: V-belt
- Color: Black
- Installation Hardware Included: No
- Installation Instructions Included: No
- Item Grade: Standard Replacement
- Material: Steel
- Mounting Hole Quantity: 1
- OE Part Number: E9TZ2L487A
- Outside Diameter: 4.82
- Package Contents: 1 Vacuum Pump Pulley
- Pulley Type/Grooves: V-belt
- UPC: 019495239994
- Width: 0.75
- Part Description: OE Solutions Vacuum Pump Pulley
$122.76Product Specifications- Bearing Bore Inside Diameter 1: 8
- Contact Surface: Smooth/Backside
- Material: Steel
- Number of Grooves: 0
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 3.15"
- Pulley 1 Flanged: No
- UPC: 072053393835
- Width: 17
- Part Description: Drivealign OE Exact Drive Belt Idler Pulley
$116.16Product Specifications- Bearing Inner Diameter 1: 30
- Bearing Inner Diameter 2: 11.2
- Belt Type: Serpentine
- Flat: Y
- Material: Steel
- Max Belt Width: 10 Rib
- Number of Bearings: 1
- Pulley Outside Diameter: 90
- Pulley Width: 41
- UPC: 036687915955
- Part Description: No Slack Driver Side Light Duty Idler Tensioner Pulley
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45922$45.17Product Specifications- Belt Type: Serpentine
- Belt Width IN: 1.125
- Belt Width MM: 28.575
- Bore Dia. IN: .472
- Color: Black
- Groove Quantity: 7
- I.D. MM: 12.000
- Inside Diameter: .472
- Material: Steel
- Meets / Exceeds OEM: Yes
- Mount Hole Qty: 1
- Mounting Hardware: Not Included
- O.D. MM: 70.0
- Outside Diameter: 2.750
- Pulley Type: Idler Pulley
- Pulley Width IN: 1.062
- Pulley Width MM: 27
- Style: Idler / Tensioner Pulley
- UPC: 096361459229
- Width: 27
- Part Description: Drive Belt Idler Pulley
SKF® Accessory Drive Belt Pulley
PartNumber: ACP63002$34.90Product Specifications- Quantity Per Application: 1
- UPC: 085311533942
- Part Description: Accessory Drive Belt Pulley
OEM (Genuine) Pulley, Idler
PartNumber: 31180-RAA-A01$28.09 MSRP:$39.68You Save: $11.59 (30%)Product Specifications- Other Names: Tension Pulley, Tensioner Pulley
- Item Dimensions: 3.0 x 3.1 x 1.6 inches
- Item Weight: 0.80 Pounds
- Fitment Type: Direct Replacement
- Part Description: Pulley, Idler
Dorman® OE Solutions Vacuum Pump Pulley
PartNumber: 300-156$21.93Product Specifications- Belt Type: Serpentine
- Color: Black
- Installation Hardware Included: No
- Installation Instructions Included: No
- Item Grade: Standard Replacement
- Material: Steel
- Mounting Hole Quantity: 1
- OE Part Number: 4C2Z2L487BA
- Outside Diameter: 5
- Package Contents: 1 Vacuum Pump Pulley
- Pulley Type/Grooves: V-belt
- UPC: 037495584562
- Width: 1.4
- Part Description: OE Solutions Vacuum Pump Pulley
Gates® Drivealign Drive Belt Idler Pulley
PartNumber: 36280$107.44Product Specifications- Bearing Bore Inside Diameter 1: 8 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number of Grooves: 0
- Number Of Pulleys: 1
- Outside Diameter: 3.46"
- Pulley 1 Flanged: No
- UPC: 072053393880
- Width: 19 mm
- Part Description: Drivealign Drive Belt Idler Pulley
$93.94Product Specifications- Bearing Inner Diameter 1: 8.1
- Bearing Width: 16
- Belt Type: Serpentine
- Flat: Y
- Material: Steel
- Max Belt Width: 04 Rib
- Number of Bearings: 1
- Pulley Outside Diameter: 88
- Pulley Width: 19
- UPC: 036687770820
- Part Description: No Slack Light Duty Idler Tensioner Pulley
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45041$38.08Product Specifications- Belt Type: Serpentine
- Belt Width IN: 1.000
- Belt Width MM: 25.400
- Bore Dia. IN: .375
- Color: Black
- Groove Quantity: Smooth
- I.D. MM: 7.9375
- Inside Diameter: 1.00
- Material: Steel
- Meets / Exceeds OEM: Yes
- Mount Hole Qty: 1
- Mounting Hardware: Not Included
- O.D. MM: 79.375
- Outside Diameter: 3.125
- Pulley Type: Back Idler
- Pulley Width IN: 1.062
- Pulley Width MM: 27
- Style: Idler / Tensioner Pulley
- UPC: 096361450417
- Width: 27
- Part Description: Drive Belt Idler Pulley
SKF® Drive Belt Idler Pulley Bearing
PartNumber: ACP36003$56.55Product Specifications- Quantity Per Application: 1
- UPC: 886931046443
- Part Description: Drive Belt Idler Pulley Bearing
VAICO® V-Ribbed Belt Guide Pulley
PartNumber: V10-0547$37.32Product Specifications- Length [mm]: 90.2
- Material: Polyamid 6.6
- Packaging Depth [cm]: 5
- Packaging height [cm]: 9
- Packaging width [cm]: 9,3
- Weight [kg]: 0,258
- Part Description: V-Ribbed Belt Guide Pulley
$20.85Product Specifications- Belt Type: Serpentine
- Color: Black
- Grade Type: Standard
- Groove Quantity: 0
- Inside Diameter: 17 mm
- Material: Plastic
- Material Thickness: 2.3 mm
- Maximum Belt Width: 24 mm
- Mounting Hardware Included: No
- Mounting Hole Quantity: 1
- Outside Diameter: 37.6 mm
- Pulley Bearing Quantity: 1
- Pulley Bearing Width: 12 mm
- Pulley Width: 24.5 mm
- UPC: 889245484468
- Part Description: OE Solutions Drive Belt Idler Pulley
Gates® Drivealign Drive Belt Idler Pulley
PartNumber: 36272$100.83Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number of Grooves: 0
- Number Of Pulleys: 1
- Outside Diameter: 3.54"
- Pulley 1 Flanged: No
- UPC: 072053393798
- Width: 30 mm
- Part Description: Drivealign Drive Belt Idler Pulley
$85.72Product Specifications- Bearing Inner Diameter 1: 12.1
- Bearing Width: 13
- Belt Type: Serpentine
- Flat: Y
- Material: Steel
- Max Belt Width: 04 Rib
- Number of Bearings: 1
- Pulley Outside Diameter: 70
- Pulley Width: 19.05
- UPC: 036687770875
- Part Description: No Slack Light Duty Idler Tensioner Pulley
Four Seasons® Drive Belt Idler Assembly
PartNumber: 45059$43.43Product Specifications- Belt Type: Serpentine
- Belt Width IN: 0.6875
- Belt Width MM: 17.463
- Color: Black
- Groove: 4
- Material: Plastic
- Mounting Hole Quantity: 1
- O.D. MM: 60.325
- Outside Diameter: 2.375
- Pulley Width IN: .75
- Pulley Width MM: 19
- Style: Idler Assembly
- UPC: 096361450592
- Part Description: Drive Belt Idler Assembly
SKF® Drive Belt Idler Pulley
PartNumber: ACP38004$41.04Product Specifications- Inner Diameter: 0.3937"
- Length: 1.4173"
- Number of Holes: 1
- Outer Diameter: 2.756"
- UPC: 085311483780
- Width: 0.984"
- Part Description: Drive Belt Idler Pulley
VAICO® Drive Belt Idler Pulley
PartNumber: V30-3119$31.43Product Specifications- Inner diameter [mm]: 17
- Length [mm]: 63
- Material: Polyamid 6
- Outer diameter [mm]: 64
- Packaging height [cm]: 8,1
- Packaging width [cm]: 7,2
- Weight [kg]: 0,1637
- Width [mm]: 22,5
- Part Description: Drive Belt Idler Pulley
OEM (Genuine) Tensioner Assy, Au
PartNumber: 31170-5A2-A03$129.32 MSRP:$182.67You Save: $53.35 (30%)Product Specifications- Item Dimensions: 7.7 x 5.9 x 5.2 inches
- Item Weight: 2.40 Pounds
- Fitment Type: Direct Replacement
- Replaces: 31170-5A2-A01, 31170-5A2-A02
- Part Description: Tensioner Assy, Au
$90.67Product Specifications- Bearing Bore Inside Diameter 1: 10.2 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number of Grooves: 0
- Number Of Pulleys: 1
- Outside Diameter: 118 mm
- Pulley 1 Flanged: No
- UPC: 072053398809
- Width: 32 mm
- Part Description: Drivealign Lower Drive Belt Idler Pulley
$85.47Product Specifications- Bearing Inner Diameter 1: 17
- Bearing Width: 14
- Belt Type: Serpentine
- Flat: Y
- Material: Steel
- Max Belt Width: 07 Rib
- Number of Bearings: 1
- Pulley Outside Diameter: 70.2
- Pulley Width: 30
- UPC: 036687915979
- Part Description: No Slack Light Duty Idler Tensioner Pulley
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45040$35.08Product Specifications- Belt Type: Back Idler
- Belt Width IN: 1.000
- Belt Width MM: 25.400
- Bore Dia. IN: .47
- Color: Black
- Groove Quantity: Smooth
- I.D. MM: 11.906
- Inside Diameter: 0.46875
- Material: Steel
- Meets / Exceeds OEM: Yes
- Mount Hole Qty: 1
- Mounting Hardware: Not Included
- O.D. MM: 79.375
- Outside Diameter: 3.125
- Pulley Type: Back Idler
- Pulley Width IN: 1
- Pulley Width MM: Idler / Tensioner Pulley
- Style: Idler / Tensioner Pulley
- UPC: 096361450400
- Width: 25.4
- Part Description: Drive Belt Idler Pulley
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Next >About Idler Pulley
The idler pulley is essential because it is in charge of routing the timing belt so that it remains in the correct position. There can be one or more pulleys along the timing chain and each can come in different sizes.
Idler pulley functionThe main function of the idler pulley is to provide tension and conduct the engine drive belt. The belt wraps around numerous components of the engine. It wraps around components like the power steering pump, alternator, and water pump, so the idler pulley makes sure the entire system runs efficiently.
Common problems with a faulty idler pulleyA faulty idler pulley can cause overheating, stalling, and a decline in tension.
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