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Drive Belt Tensioner - ACDelco (12557838)
Sale Price$70.68
Description : GM Genuine Parts Drive Belt Tensioner Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These assemblies are spring-loaded pulleys designed to draw tension on your vehicle's serpentine belt. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Product Details
Description
GM Genuine Parts Drive Belt Tensioner Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These assemblies are spring-loaded pulleys designed to draw tension on your vehicle's serpentine belt. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Part Number (MPN)
12557838
Brand
SKU
12557838
UPC / GTIN
707773696439 / 00707773696439
Condition
New
Other Names
12557838
Position
Main Drive
Brand
GM Genuine Parts
Belt Type
Serpentine
Contact Surface
Smooth/Backside
Degree Range Of Adjustment (deg)
17
FAQ - Answer 1
Yes. If the drive belt is too tight, damage to other drive components may occur.
FAQ - Question 1
Can a drive belt be too tight?
Features & Benefits - Bullet 1
Helps keep drive belt at correct tension to help maintain proper function
Features & Benefits - Bullet 2
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Features & Benefits - Bullet 3
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
Features & Benefits - Bullet 4
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features & Benefits - Bullet 5
GM regularly updates production and service part designs to integrate new materials and technologies
Flanged
No
Good Maintenance Practices - Section 1 - Bullet 1
Be sure to have the replacement tensioner properly aligned to the other drive component pulleys.
Good Maintenance Practices - Section 1 - Bullet 2
Have your vehicle inspected as soon as possible if the 'Service Engine Soon' light illuminates.
Good Maintenance Practices - Section 1 - Bullet 3
Have your vehicle inspected immediately if the 'Service Engine Soon' light flashes rapidly, as this could indicate an engine misfire condition which may damage your engine and/or engine emission components.
Good Maintenance Practices - Section 1 - Bullet 4
Regularly inspect assembly for signs of damage or wear, and replace them if signs of damage are found.
Good Maintenance Practices - Section 1 - Header
Before purchasing and installing a drive belt tensioner assembly, make sure it is the correct size and fit for your vehicle.
Height (in)
5.25
Housing Material
Aluminum
Inside Diameter
72.4
Inside Diameter (mm)
Silver
Length
171.89<br />6.77
Material
Steel
Mount Hole Diameter (in)
0.402in
Mount Hole Diameter (mm)
10.2mm
Mount Hole Quantity
1
Mounting Bolt Included
No
Mounting Hole Diameter
10.3<br />0.41
Mounting Hole Quantity
1
Outside Diameter
30.8<br />76.2
Programming Required
No
Pulley 1 Flanged
No
Pulley Center Bore Diameter (in)
0.295in
Pulley Center Bore Diameter (mm)
7.5mm
Pulley Outside Diameter (in)
3
Pulley Quantity
1
Pulley Width (in)
1.285in
Pulley Width (mm)
32.65mm
Signs of Wear & Troubleshooting - Section 1 - Bullet 1
Worn or cracked tensioner pulleys
Signs of Wear & Troubleshooting - Section 1 - Bullet 2
Drive belt squeal
Signs of Wear & Troubleshooting - Section 1 - Bullet 3
Tensioner misalignment
Signs of Wear & Troubleshooting - Section 1 - Header
Signs of wear for drive belt tensioner assembly include but are not limited to:
Weight (lb)
2.24
Width
2.85<br />1.21
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|---|---|---|---|
Vehicle #1
Year
Make
Model
Body & Trim
Engine & Transmission
| Brand | Equivalent Part Numbers |
|---|---|
BrandEquivalent Part Numbers
A Premium
95383947969932931
Cadna Belts and Hose
5847
Continental
49240
DAYCO HYDRAULIC
89266
Dorman
419-117
FOUR SEASONS
45847
GM
12557838
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