D13 MP8 Belt Tensioner - 2018+ Continental OE 49608 Replaces 21819687
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$217.50
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Fitment
Fits these trucks
Volvo D13 (2018+)Mack MP8 (2018+)Mack MP7 (2015-2016) - Mack CXUVolvo VNL 670/740/760/770/780/860 - MP7 (2015-2016)Volvo VNR 300/400/640 - MP7 (2015-2016)
Always confirm your year, make & model before ordering.
Part numbers
OEM & interchange numbers
2 cross-refsMack 21819687 Contitech 49608
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview
Ensure the reliable performance of your engine’s accessory drive with this genuine OE-level D13 MP8 Belt Tensioner by Continental Elite, distributed by FleetPro Parts & Tires. As an Original Equipment (OE) component, this tensioner is engineered to maintain the precise amount of belt tension required to prevent slippage and premature wear on your alternator, water pump, and AC compressor. Built specifically for the high-torque environments of 2018 and newer Volvo and Mack diesel engines, it eliminates belt squeal and reduces vibration, extending the life of your entire serpentine system. We stock these heavily right here in our Hanover Park, Illinois warehouse for lightning-fast shipping nationwide.
OE Engineering: The D13 MP8 Belt Tensioner Advantage
This D13 MP8 Belt Tensioner features Continental’s advanced internal damping system. This technology actively absorbs the brutal high-frequency torsional vibrations produced by heavy-duty 2018+ diesel engines, preventing the tensioner arm from "chattering" and protecting the engine bearings from shock loads. Manufactured with a high-strength cast aluminum housing and a precision-ground pulley, this assembly provides the exact factory-spec fit and durability required for extreme long-haul duty cycles.
At FleetPro Parts & Tires, we prioritize drive components that keep your cooling and charging systems fully operational. Don't gamble your uptime on rigid aftermarket tensioners that fail prematurely. This assembly is a direct professional-grade replacement for highly searched OEM part numbers like Volvo/Mack 21819687 and Continental 49608, ensuring a reliable, long-lasting fix for active belt-drive issues on your late-model D13 or MP8.
Engine Fitment & Compatibility
This genuine Continental OE tensioner assembly features an exact-fit design intended strictly for the following commercial powerplants:
- Engine Application: Volvo D13
- Engine Application: Mack MP8
- Year Range: 2018 and Newer (2018+)
- Component Group: Engine Cooling & Accessory Drive
Direct Replacement & Cross-Reference Numbers:
This Continental OE tensioner serves as a direct exact-fit replacement for the following part numbers:
- Volvo / Mack OEM: 21819687
- Continental / Contitech: 49608
- Automann Interchange: 816.49608
Technical Specifications
- Component Type: Automatic Belt Tensioner Assembly
- Housing Material: High-Strength Cast Aluminum
- Condition: Brand New
- Product Level: OE (Original Equipment by Continental)
- Brand: Continental Elite (Distributed by FleetPro Parts & Tires)
Key features
- Continental OE Quality: Authentic Original Equipment level part manufactured by Continental, delivering the exact spring tension and durability trusted by heavy-duty engine manufacturers.
- Engine-Specific Fitment: Explicitly engineered for the updated accessory drive systems on 2018 and newer Volvo D13 and Mack MP8 engines.
- Direct OEM Replacement: Delivers a seamless, bolt-on installation as the exact factory replacement for highly searched OEM part number 21819687 and Continental 49608.
- Advanced Vibration Damping: Features a heavy-duty internal damping mechanism to absorb harsh torsional diesel vibrations, preventing tensioner chatter and extending serpentine belt life.
- Prevents Breakdown: Maintains precise, constant belt tension to eliminate slippage, ensuring your water pump, alternator, and AC compressor operate flawlessly under heavy loads.
Specifications
Type
Automatic belt tensioner assembly
Housing
High-strength cast aluminum
Weight
4.16 lbs
Questions
Will this fit my truck?
This part fits Volvo D13 (2018+), Mack MP8 (2018+), Mack MP7 (2015-2016) - Mack CXU, Volvo VNL 670/740/760/770/780/860 - MP7 (2015-2016), Volvo VNR 300/400/640 - MP7 (2015-2016). Always confirm your year, make and model before ordering.
What part numbers does it replace?
Yes. It is a direct replacement that interchanges with Mack 21819687, Contitech 49608.
How fast does it ship?
In-stock orders placed before 12 PM Central on business days ship the same day from our Hanover Park, IL warehouse, and typically arrive in 2 to 5 business days anywhere in the USA.
What's your return policy?
Unused items in original packaging can be returned within 30 days, backed by our 30-day money-back guarantee. If we ship the wrong part, we cover the return label and send the correct one.