Contact Us
Live Chat
or
1-888-220-8330
Search Bar
Search by Part Number or Keywords
My Garage
My Account
Cart
Body & Mirrors
Chassis & Brakes
Engine & Drivetrain
Electrical & Lighting
Help Center
< Back
×
Live Chat
1-888-220-8330
Body & Mirrors
Chassis & Brakes
Engine & Drivetrain
Electrical & Lighting
Login/Register
My Account
Track Order
Help Center
Contact Us
Home
>
Sierra 2500 HD
>
2018
>
Engine & Drivetrain
>
Timing Belts, Chains, Cams & Related Parts
>
Idler Pulley
2018 GMC Sierra 2500 HD Idler Pulley
My Vehicle
Change Vehicle
2018 GMC Sierra 2500 HD
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Timing Belts, Chains, Cams & Related Parts
Department
OE
Replacement
Brands
Dayco
Gates
Prices
$29.99 and under
$30 to $59.99
$60 to $99.99
$100 and over
9 Products found
Show Item:
30
60
90
Sort by:
Recommended
Filter
Sort
View by
View Related Parts
OEM (Genuine)
2018 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber:
12669569
VEHICLE SPECIFIC
Product Specifications
Notes:
6.0 Liter; Silverado, Sierra; 6.0L
Other Names:
Idler Pulley, Serpentine Idler Pulley
Item Dimensions:
6.8 x 4.4 x 4.4 inches
Item Weight:
1.20 Pounds
Fitment Type:
Direct Replacement
Replaces:
12555609, 12580771
Part Description:
2018 GMC Sierra 2500 HD Serpentine Idler Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
$52.78
MSRP:
$99.60
You Save: $46.82 (48%)
Check Fit
Add to Cart
Gates®
Drivealign Drive Belt Idler Pulley for 2018 GMC Sierra 2500 HD
PartNumber:
36299
VEHICLE SPECIFIC
Product 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: 072053394078
Width: 31 mm
Part Description: 2018 GMC Sierra 2500 HD Drivealign Drive Belt Idler Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$25.40
Add to Cart
Dayco®
No Slack Lower Light Duty Idler Tensioner Pulley for 2018 GMC Sierra 2500 HD
PartNumber:
89059
VEHICLE SPECIFIC
Product Specifications
Bearing Inner Diameter 1: 17
Bearing Width: 14
Belt Type: Serpentine
Flat: Y
Material: Steel
Max Belt Width: 06 Rib
Number of Bearings: 1
Pulley Outside Diameter: 76
Pulley Width: 28
UPC: 036687383129
Part Description: 2018 GMC Sierra 2500 HD No Slack Lower Light Duty Idler Tensioner Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$24.32
Add to Cart
View Related Parts
OEM (Genuine)
2018 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber:
12611935
VEHICLE SPECIFIC
Product Specifications
Notes:
6.6 Liter Diesel, W/Dual Alternator;6.6 Liter Diesel, W/O Dual Alternator; Silverado, Sierra; 6.6L; Dual Alternator; Lower;Silverado, Sierra; 6.6L; Single Alternator
Location:
Driver Side; Passenger Side
Other Names:
Idler Pulley, Serpentine Idler Pulley
Item Dimensions:
4.3 x 4.4 x 4.2 inches
Item Weight:
0.90 Pounds
Fitment Type:
Direct Replacement
Replaces:
12581700
Part Description:
2018 GMC Sierra 2500 HD Serpentine Idler Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$52.69
MSRP:
$99.43
You Save: $46.74 (48%)
Check Fit
Add to Cart
Gates®
Drivealign Drive Belt Idler Pulley for 2018 GMC Sierra 2500 HD
PartNumber:
38006
VEHICLE SPECIFIC
Product Specifications
Bearing Bore Inside Diameter 1: 17 mm
Contact Surface: Smooth/Backside
Material: Steel
Number of Grooves: 0
Number Of Pulleys: 1
Outside Diameter: 2.99"
Pulley 1 Flanged: No
UPC: 072053415308
Width: 30.5 mm
Part Description: 2018 GMC Sierra 2500 HD Drivealign Drive Belt Idler Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$18.74
Add to Cart
Dayco®
No Slack Light Duty New Style Idler Tensioner Pulley for 2018 GMC Sierra 2500 HD
PartNumber:
89006
VEHICLE SPECIFIC
Product Specifications
Bearing Inner Diameter 1: 17
Bearing Width: 12
Belt Type: Serpentine
Flat: Y
Material: Steel
Max Belt Width: 06 Rib
Number of Bearings: 1
Pulley Outside Diameter: 90
Pulley Width: 30
UPC: 038244156948
Part Description: 2018 GMC Sierra 2500 HD No Slack Light Duty New Style Idler Tensioner Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$19.32
Add to Cart
View Related Parts
OEM (Genuine)
2018 GMC Sierra 2500 HD Idler Pulley
PartNumber:
12626075
VEHICLE SPECIFIC
Product Specifications
Notes:
6.6 Liter Diesel, W/Dual Alternator; Silverado, Sierra; 6.6L; Dual Alternator; Upper
Location:
Driver Side
Other Names:
Idler Pulley
Item Dimensions:
4.3 x 4.4 x 4.2 inches
Item Weight:
0.80 Pounds
Fitment Type:
Direct Replacement
Replaced by:
12728996
Part Description:
2018 GMC Sierra 2500 HD Idler Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$45.09
MSRP:
$85.10
You Save: $40.01 (48%)
Check Fit
Add to Cart
Dayco®
No Slack Light Duty Idler Tensioner Pulley for 2018 GMC Sierra 2500 HD
PartNumber:
89009
VEHICLE SPECIFIC
Product Specifications
Bearing Inner Diameter 1: 17
Bearing Width: 12
Belt Type: Serpentine
Flat: N
Groove Quantity: 6
Material: Polymer
Max Belt Width: 06 Rib
Number of Bearings: 1
Pulley Outside Diameter: 76
Pulley Width: 28.7
UPC: 038244156979
Part Description: 2018 GMC Sierra 2500 HD No Slack Light Duty Idler Tensioner Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L
$13.50
Add to Cart
Gates®
Drivealign Oe Exact Drive Belt Idler Pulley for 2018 GMC Sierra 2500 HD
PartNumber:
36776
VEHICLE SPECIFIC
Product Specifications
Bearing Bore Inside Diameter 1: 17
Contact Surface: Smooth/Backside
Material: Steel
Number Of Pulleys: 1
OE Comparison Rating: OE Exact
Outside Diameter: 3.54"
Pulley 1 Flanged: No
UPC: 770075720409
Width: 32
Part Description: 2018 GMC Sierra 2500 HD Drivealign Oe Exact Drive Belt Idler Pulley
More Info
Vehicle Fitment
2018 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L
$41.66
Add to Cart