Dorman 419-400 Automatic Belt Tensioner (Tensioner Only) 01-07 Chevy Silverado
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$64.34
Select your vehicle at the top of the page to check fitment.
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
This accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles. It is engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue.
- Direct replacement - this accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles
- Ideal solution - engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue
- Durable construction - designed and manufactured to strict specifications for reliable performance
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Vehicle Fitment
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002-2006 | Chevrolet | Avalanche 2500 | 8.1L V8 | |
| 2001-2006 | Chevrolet | Silverado 2500 HD | 8.1L V8 | |
| 2007 | Chevrolet | Silverado 2500 HD Classic | 8.1L V8 | |
| 2001-2006 | Chevrolet | Silverado 3500 | 8.1L V8 | |
| 2007 | Chevrolet | Silverado 3500 Classic | 8.1L V8 | |
| 2001-2006 | Chevrolet | Suburban 2500 | 8.1L V8 | |
| 2001-2006 | GMC | Sierra 2500 HD | 8.1L V8 | |
| 2007 | GMC | Sierra 2500 HD Classic | 8.1L V8 | |
| 2001-2006 | GMC | Sierra 3500 | 8.1L V8 | |
| 2007 | GMC | Sierra 3500 Classic | 8.1L V8 | |
| 2001-2006 | GMC | Yukon XL 2500 | 8.1L V8 |
Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.
Specifications
| Brand | Dorman |
|---|---|
| Part Number | 419-400 |
| UPC | 889245329035 |
| Material | Plastic; Metal |
| Length | 3.274 in. |
| Color | Black; Silver |
| Inside Diameter | 2 in. |
| Width | 1.04 in. |
| Outside Diameter | 3.05 mm |
| Groove Quantity | 5 |
| Flanged | Yes |
| Mounting Hole Quantity | 2 |
| Housing Material | Aluminum |
| Belt Type | Serpentine |
| Bolt Diameter | 2 in. |
| Mounting Hole Diameter | 0.45 in. |
| Bolt Length | 1.04 in. |
| Bolt Head Type | Hex |
| Bushings Included | Yes |
| Grade Type | Standard Replacement |
| Package Contents | 1 Automatic Belt Tensioner |
| Pulley Bearing Diameter (mm) | 3.04 mm |
| Country of Origin | Taiwan |
| Warranty | Limited Lifetime |
OE & Interchange Numbers
| 12554701 | General Motors (OE) |
|---|---|
| 12580828 | General Motors (OE) |
| 49330 | Interchange |
| 89484 | Interchange |
| 49504 | Interchange |
| 38260 | Interchange |
| 38514 | Interchange |
| 89323 | Interchange |