
Dorman
Dorman 419-623 Idler Pulley
Part # DOR419-623$67.61
Ground shipping included in priceAvailable to the contiguous U.S. excluding California
Fitment not selectedAdd your truck to verify compatibility
Open Garage →Fast fulfillmentLive inventory and order status
Secure checkoutProtected by Shopify
Diesel supportReal help for the right part
Product details
Description
The Dorman 419-623 Idler Pulley for your GM 6.6L Duramax is engineered to route the serpentine belt for proper alignment with the accessory drive belt, thereby keeping the alternator charging, the water pump running, and the power steering pump and A/C compressor operating properly. Dorman Idler Pulleys feature a high-quality double-sealed bearing to resist damage from contaminants.
Features
- Direct-Fit Design
- Stops Squeaks & Other Noises
Product Specifications
Belt Type: Serpentine
Color: Black
Grade Type: Regular
Groove Quantity: 0
Inside Diameter: 25 mm
Material: Steel
Mounting Hardware Included: No
Mounting Hole Quantity: 1
Outside Diameter: 76.3 mm
Package Contents: 1 Idler Pulley
Package Quantity: 1
Packaging Type: Box
Pulley Bearing Quantity: 1
Pulley Bearing Width (mm): 30 mm
Pulley Diameter (mm): 76.3 mm
Pulley Width (mm): 30 mm
Universal Or Specific Fit: Specific
Width: 30 mm
Complete the job
Build the job. Not just the cart.
Start with the right part, then choose the supporting pieces that help prevent a second teardown or a last-minute parts run.
Choose your supporting parts
Build an install-ready package.
✓

Primary part · includedDorman 419-623 Idler PulleyDorman
$67.61No supporting parts have been verified yet.You can still add the primary part above. We won’t guess at compatibility.
