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Timing Belts, Chains, Cams & Related Parts
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OEM (Genuine) Tensioner Assy., Auto
PartNumber: 31170-RAA-A02
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
$128.62 MSRP:$181.68You Save: $53.06 (30%)
Dorman® OE Solutions Vacuum Pump Pulley
PartNumber: 300-702Product 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
$80.03
Gates® Drivealign OE Exact Drive Belt Idler Pulley
PartNumber: 36422Product 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
$173.29
Dayco® No Slack Light Duty Idler Tensioner Pulley
PartNumber: 89559Product 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
$128.92
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45030Product 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
$16.36
SKF® Drive Belt Tensioner Assembly
PartNumber: ACT31002Product Specifications- Quantity Per Application: 1
- UPC: 085311485838
- Part Description: Drive Belt Tensioner Assembly
$44.84
VAICO® Drive Belt Idler Pulley
PartNumber: V48-0436Product Specifications- Length [mm]: 102
- Packaging height [cm]: 6,5
- Packaging width [cm]: 10,1
- Weight [kg]: 0,242
- Part Description: Drive Belt Idler Pulley
$47.71
OEM (Genuine) Pulley, Idle
PartNumber: 31190-RRA-A00
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
$75.10 MSRP:$106.08You Save: $30.98 (30%)
Dorman® OE Solutions Vacuum Pump Pulley
PartNumber: 300-701Product 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
$34.67
Gates® Drivealign OE Exact Drive Belt Idler Pulley
PartNumber: 36276Product 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
$122.76
Dayco® No Slack Driver Side Light Duty Idler Tensioner Pulley
PartNumber: 89566Product 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
$116.16
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45922Product 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
$45.17
SKF® Accessory Drive Belt Pulley
PartNumber: ACP63002Product Specifications- Quantity Per Application: 1
- UPC: 085311533942
- Part Description: Accessory Drive Belt Pulley
$34.90
OEM (Genuine) Pulley, Idler
PartNumber: 31180-RAA-A01
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
$28.09 MSRP:$39.68You Save: $11.59 (30%)
Dorman® OE Solutions Vacuum Pump Pulley
PartNumber: 300-156Product 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
$21.93
Gates® Drivealign Drive Belt Idler Pulley
PartNumber: 36280Product 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
$107.44
Dayco® No Slack Light Duty Idler Tensioner Pulley
PartNumber: 89509Product 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
$93.94
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45041Product 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
$38.08
SKF® Drive Belt Idler Pulley Bearing
PartNumber: ACP36003Product Specifications- Quantity Per Application: 1
- UPC: 886931046443
- Part Description: Drive Belt Idler Pulley Bearing
$56.55
VAICO® V-Ribbed Belt Guide Pulley
PartNumber: V10-0547Product 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
$37.32
Dorman® OE Solutions Drive Belt Idler Pulley
PartNumber: 419-725Product 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
$20.85
Gates® Drivealign Drive Belt Idler Pulley
PartNumber: 36272Product 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
$100.83
Dayco® No Slack Light Duty Idler Tensioner Pulley
PartNumber: 89508Product 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
$85.72
Four Seasons® Drive Belt Idler Assembly
PartNumber: 45059Product 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
$43.43
SKF® Drive Belt Idler Pulley
PartNumber: ACP38004Product 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
$41.04
VAICO® Drive Belt Idler Pulley
PartNumber: V30-3119Product 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
$31.43
OEM (Genuine) Tensioner Assy, Au
PartNumber: 31170-5A2-A03
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
$129.32 MSRP:$182.67You Save: $53.35 (30%)
Gates® Drivealign Lower Drive Belt Idler Pulley
PartNumber: 36318Product 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
$90.67
Dayco® No Slack Light Duty Idler Tensioner Pulley
PartNumber: 89568Product 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
$85.47
Four Seasons® Drive Belt Idler Pulley
PartNumber: 45040Product 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
$35.08
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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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