4 Belt drive parts are listed for the 2021 Freightliner Sprinter 4500, in 2 part types, covering the 3.0L V6 DIESEL Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Freightliner Sprinter 4500, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. All 4 listed parts are Belt Tensioner (3 parts) and Idler Pulley (1 part).
The 2021 Freightliner Sprinter 4500 came with a single engine, the 3.0L V6 DIESEL Turbocharged, and every part is verified against it.
3 brands supply belt drive parts for the 2021 Freightliner Sprinter 4500, led by DAYCO (2 parts), SKP (1 part) and CONTINENTAL (1 part). Quality grades include Standard Replacement and Economy.
Each part number listed for the 2021 Freightliner Sprinter 4500 opens a page with every vehicle that part fits.
Belt Tensioner
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SKAPV2554 | 🇺🇸 US | with Rear Air Conditioning | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO | 89651 | 🇺🇸 US | Pulley 1 Diameter: 65 mm | View on Amazon |
| DAYCO | 89463 | 🇺🇸 US | Automatic TensionerHeavy Duty | View on Amazon |
This table covers the automatic tensioners that hold belt tension. Typical signs include belt flutter, a chirp that returns after a new belt, or a damper that no longer holds the arm. Replace the tensioner with the belt at higher mileage; the labor overlaps almost entirely.
3 Belt Tensioner parts are listed for the 2021 Freightliner Sprinter 4500, from DAYCO and SKP.
In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SKAPV2554.
The Standard Replacement section lists 2 options from DAYCO — built to original-equipment specification. DAYCO 89651 is listed in this group.
Part numbers include SKP SKAPV2554, DAYCO 89651 and DAYCO 89463.
Idler Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 50110 | 🇺🇸 US | Multi-VGrooved | View on Amazon |
This table covers the idler pulleys the belt wraps around. Typical signs include a chirp that follows engine speed, or a pulley that feels rough or has play. Replace a noisy idler with the belt — the labor is already paid for.
This group shows a single part: CONTINENTAL 50110.
Buying Belt Drive Parts for a 2021 Freightliner Sprinter 4500
On this vehicle, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.
- Confirm you have the 3.0L V6 DIESEL Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the tensioner and idler pulleys with any belt at higher mileage — the labor overlaps almost entirely.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Belt Tensioner and Idler Pulley .
Frequently Asked Questions
How many belt drive parts fit the 2021 Freightliner Sprinter 4500?
Our catalog currently lists 4 belt drive parts for the 2021 Freightliner Sprinter 4500 across 2 subcategories and 3 brands, covering the 3.0L V6 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of belt drive problems on a 2021 Freightliner Sprinter 4500?
Common symptoms include squealing on cold start, a belt that shows cracking or glazing, or an accessory that slows under load. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the tensioner and idler pulleys with any belt at higher mileage — the labor overlaps almost entirely.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Freightliner Sprinter 4500 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Freightliner Sprinter 4500?
Every part on this page is matched to the 3.0L V6 DIESEL Turbocharged engine. Then a new belt on a worn tensioner will squeal within weeks — check tensioner damping and idler bearings while the belt is off. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Freightliner Sprinter 4500
Belt Drive Parts for Other Freightliner Sprinter 4500 Years
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