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Mercury Belt Tensioner
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$89.31 MSRP:$147.64You Save: $58.33 (40%)Product Specifications- Other Names: Belt Tensioner, Serpentine Tensioner
- Item Dimensions: 15.8 x 10.8 x 0.6 inches
- Item Weight: 2.10 Pounds
- Fitment Type: Direct Replacement
- Replaces: 7T4Z-6B209-AA, 8T4Z-6B209-A
- Part Description: Mercury Serpentine Tensioner
$155.90Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 3"
- Pulley 1 Flanged: No
- UPC: 770075167921
- Width: 37 mm
- Part Description: Mercury Drivealign OE Exact Automatic Belt Tensioner
$143.03Product Specifications- Belt Type: Serpentine
- Direction: Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 70
- Pulley 1 Flat: N
- Pulley 1 Number Of Grooves: 6
- Pulley 1 Width: 28.7
- UPC: 036687767936
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
OEM (Genuine) Mercury Tensioner
PartNumber: F6AZ-6L266-CA$48.78 MSRP:$70.72You Save: $21.94 (32%)Product Specifications- Other Names: Tensioner
- Item Dimensions: 4.8 x 4.7 x 2.6 inches
- Item Weight: 1.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: F6AZ-6L266-AA
- Part Description: Mercury Tensioner
$67.03Product Specifications- Belt Type: Serpentine
- Direction: Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 76
- Pulley 1 Flat: Y
- Pulley 1 Width: 26
- UPC: 038244912254
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
OEM (Genuine) Mercury Tensioner
PartNumber: F6AZ-6L266-DA$49.61 MSRP:$71.92You Save: $22.31 (32%)Product Specifications- Other Names: Tensioner
- Item Dimensions: 4.6 x 4.7 x 2.6 inches
- Item Weight: 1.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: F6AZ-6L266-BA
- Part Description: Mercury Tensioner
$136.71Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 2.99"
- Pulley 1 Flanged: No
- UPC: 770075157953
- Width: 37 mm
- Part Description: Mercury Drivealign OE Exact Automatic Belt Tensioner
$64.70Product Specifications- Belt Type: Serpentine
- Direction: Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 70
- Pulley 1 Flat: Y
- Pulley 1 Width: 26
- UPC: 036687815996
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
OEM (Genuine) Mercury Tensioner
PartNumber: 7T4Z-6K254-AA$39.41 MSRP:$57.63You Save: $18.22 (32%)Product Specifications- Other Names: Tensioner
- Item Dimensions: 3.4 x 3.3 x 2.7 inches
- Item Weight: 0.80 Pounds
- Fitment Type: Direct Replacement
- Part Description: Mercury Tensioner
$59.44Product Specifications- Belt Type: Serpentine
- Direction: Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 76
- Pulley 1 Flat: Y
- Pulley 1 Width: 30.9
- UPC: 036687625991
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
OEM (Genuine) Mercury Tensioner
PartNumber: 7T4Z-6K254-BA$39.17 MSRP:$56.78You Save: $17.61 (32%)Product Specifications- Item Dimensions: 3.4 x 3.3 x 2.6 inches
- Item Weight: 0.80 Pounds
- Fitment Type: Direct Replacement
- Part Description: Mercury Tensioner
$47.07 MSRP:$75.09You Save: $28.02 (38%)Product Specifications- Other Names: Belt Tensioner, Serpentine Tensioner
- Item Dimensions: 8.7 x 7.7 x 8.0 inches
- Item Weight: 2.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: XR3Z-6B209-AB
- Part Description: Mercury Serpentine Tensioner
$52.14Product Specifications- Belt Type: Serpentine
- Direction: Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 76
- Pulley 1 Flat: N
- Pulley 1 Number Of Grooves: 6
- Pulley 1 Width: 28.7
- UPC: 036687186287
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
$169.49 MSRP:$272.73You Save: $103.24 (38%)Product Specifications- Item Dimensions: 5.5 x 4.3 x 4.3 inches
- Item Weight: 2.10 Pounds
- Fitment Type: Direct Replacement
- Replaces: 3M5Z-6A228-AD
- Part Description: Mercury Serpentine Idler Pulley
$81.97Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Thermoplastic
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 2.76"
- Pulley 1 Flanged: No
- UPC: 770075441106
- Width: 25.5 mm
- Part Description: Mercury Drivealign OE Exact Automatic Belt Tensioner
$51.94Product Specifications- Belt Type: Serpentine
- Direction: Counter Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 76
- Pulley 1 Flat: Y
- Pulley 1 Width: 26
- UPC: 036687119575
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
$57.40Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Thermoplastic
- Number Of Pulleys: 1
- OE Comparison Rating: OE Performance
- Outside Diameter: 70 mm
- Pulley 1 Flanged: No
- UPC: 770075615880
- Width: 24.5 mm
- Part Description: Mercury Drivealign Automatic Belt Tensioner
$43.56Product Specifications- Belt Type: Serpentine
- Direction: Counter Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 76
- Pulley 1 Flat: Y
- Pulley 1 Width: 31
- UPC: 036687280411
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
$50.31 MSRP:$79.56You Save: $29.25 (37%)Product Specifications- Other Names: Belt Tensioner, Serpentine Tensioner
- Item Dimensions: 10.1 x 3.0 x 4.5 inches
- Item Weight: 2.50 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 1L2Z-6B209-D
- Part Description: Mercury Serpentine Tensioner
$55.99Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 76 mm
- Pulley 1 Flanged: No
- UPC: 072053436143
- Width: 30.5 mm
- Part Description: Mercury Drivealign OE Exact Automatic Belt Tensioner
$45.08Product Specifications- Belt Type: Serpentine
- Direction: Counter Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 76
- Pulley 1 Flat: Y
- Pulley 1 Width: 31
- UPC: 038244912247
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
$103.28 MSRP:$170.73You Save: $67.45 (40%)Product Specifications- Other Names: Belt Tensioner, Serpentine Tensioner
- Item Dimensions: 10.1 x 3.0 x 4.4 inches
- Item Weight: 3.00 Pounds
- Fitment Type: Direct Replacement
- Part Description: Mercury Serpentine Tensioner
$73.67Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 76 mm
- Pulley 1 Flanged: No
- UPC: 072053821086
- Width: 30.5 mm
- Part Description: Mercury Drivealign OE Exact Automatic Belt Tensioner
$40.33Product Specifications- Belt Type: Serpentine
- Direction: Counter Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 100
- Pulley 1 Flat: Y
- Pulley 1 Width: 30
- UPC: 036687312884
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
$82.30Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Thermoplastic
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 76 mm
- Pulley 1 Flanged: No
- UPC: 072053675603
- Width: 22 mm
- Part Description: Mercury Drivealign OE Exact Automatic Belt Tensioner
$41.81Product Specifications- Belt Type: Serpentine
- Direction: Counter Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 90
- Pulley 1 Flat: Y
- Pulley 1 Width: 27
- UPC: 036687311993
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
$74.35 MSRP:$122.91You Save: $48.56 (40%)Product Specifications- Other Names: Belt Tensioner, Serpentine Tensioner
- Item Dimensions: 8.3 x 5.1 x 3.9 inches
- Item Weight: 2.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: Mercury Serpentine Tensioner
$75.02Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number Of Pulleys: 1
- OE Comparison Rating: OE Exact
- Outside Diameter: 82 mm
- Pulley 1 Flanged: No
- UPC: 072053448344
- Width: 30.5 mm
- Part Description: Mercury Drivealign OE Exact Automatic Belt Tensioner
$41.03Product Specifications- Belt Type: Serpentine
- Direction: Counter Clock Wise
- Number Of Pulleys: 1
- Pulley 1 Diameter: 70.7
- Pulley 1 Flat: N
- Pulley 1 Number Of Grooves: 6
- Pulley 1 Width: 28
- UPC: 036687651327
- Part Description: Mercury No Slack Automatic Belt Tensioner Assembly
OEM (Genuine) Mercury Tensioner
PartNumber: 1L2Z-6L266-AA$21.17 MSRP:$30.43You Save: $9.26 (31%)Product Specifications- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: XL2Z-6L266-BA
- Part Description: Mercury Tensioner
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Next >About Mercury Belt Tensioner
Mercury's products contributed to its development in 107 years. During the 1950s, the brand received great success. Mercury has made and marketed plenty of high-quality cars and parts, including the belt tensioner. The Mercury belt tensioner makes sure that the drive belt has enough tension. The faulty belt tensioner parts can cause the car to have grinding noises, cracks, and worn-out drive belt edges.
Mercury stands out for its great parts. However, consumers need the new belt tensioners if these parts are worn or damaged. The removal process for the Mercury belt tensioner is as follows: Remove accessories in the way if needed (water pump, alternator, radiator hoses), next remove the belt from the accessories, then remove the mounting bolts for the belt tensioner, and pull the tensioner parts away from the location and compare it to the new unit. The belt tensioner should be checked every 50,000-100,000 miles. We put much emphasis on the quality of different Mercury parts and accessories. We are here for you 24/7 online.