Dorman 419-1004 Drive Belt Tensioner
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
$155.63
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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.
Product Description
Maintain the correct level of tension on your serpentine belt, with Dorman's Drive Belt Tensioner. The Automatic Belt Tensioner Assembly is recommended for replacement when replacing the serpentine belt.
- Corrosion resistant construction for long-lasting durability
- Helps preserve serpentine belt life
- Replace the piece instead of the entire assembly
- Designed to fit properly every time
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2018 | Mack | Anthem | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2018 | Mack | Anthem | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2018 | Mack | CHU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2018 | Mack | CXU | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2018 | Mack | CXU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2018 | Mack | Granite | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2018 | Mack | GU7 | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2018 | Mack | GU7 | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2018 | Mack | GU8 | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2018 | Mack | GU8 | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2018 | Mack | LR600 | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2018 | Mack | MRU | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2018 | Mack | MRU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2018 | Mack | Pinnacle | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2018 | Volvo | 9700 | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VAH | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VAH | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VHD | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VHD | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VNL | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VNL | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VNM | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VNM | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VNR | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2018 | Volvo | VNR | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2017 | Mack | CHU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2017 | Mack | CXU | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2017 | Mack | CXU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2017 | Mack | GU7 | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2017 | Mack | GU7 | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2017 | Mack | GU8 | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2017 | Mack | GU8 | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2017 | Mack | LR600 | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2017 | Mack | MRU | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2017 | Mack | MRU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2017 | Volvo | 9700 | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | 9700 Grand (Mexico) | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VAH | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VAH | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VHD | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VHD | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VNL | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VNL | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VNM | Engine Desg. D11; EngineMfr Volvo | Alternator | |
| 2017 | Volvo | VNM | Engine Desg. D13; EngineMfr Volvo | Alternator | |
| 2016 | Mack | CHU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2016 | Mack | CXU | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2016 | Mack | CXU | Engine Desg. MP8; EngineMfr Mack | Alternator | |
| 2016 | Mack | GU7 | Engine Desg. MP7; EngineMfr Mack | Alternator | |
| 2016 | Mack | GU7 | Engine Desg. MP8; EngineMfr Mack | Alternator |
Product Specifications
| Belt Type: | Serpentine |
|---|---|
| Color: | Silver |
| Inside Diameter: | 27 mm |
| Length: | 9 in |
| Material: | Aluminum |
| Mounting Hole Diameter: | 12 mm |
| Mounting Hole Quantity: | 2 |
| Outside Diameter: | 32 mm |
| Package Contents: | 1 Drive Belt Tensioner |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Selling Package Quantity UOM: | Piece |
| Width: | 5.25 in |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 21454379 | VOLVO |
| 23669027 | VOLVO |