The 2017 Freightliner XC has 12 belt drive parts with verified fitment on this page — 3 part types and 7 brands, covering both the 14.9L L6 DIESEL Turbocharged and the 6.7L L6 DIESEL Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2017 Freightliner XC, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys. All 12 listed parts are Belt Tensioner (6 parts), Belt (5 parts) and Idler Pulley (1 part).
The 2017 Freightliner XC was sold with both the 14.9L L6 DIESEL Turbocharged and the 6.7L L6 DIESEL Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
7 brands supply belt drive parts for the 2017 Freightliner XC, led by CONTINENTAL (2 parts), DAYCO (2 parts) and GATES (2 parts), plus 4 more brands. Quality grades include Economy and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2017 Freightliner XC. 3 parts have it, including GATES K080907 (Belt) and DAYCO 89930 (Belt Tensioner). Each part number opens a page with every vehicle that part fits.
Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 910K8MK | 🇺🇸 US 🇨🇦 CA | Mileage MakerSerpentine | View on Amazon |
| FVP Fits: 6.7L L6 DIESEL Turbocharged | 910K8 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 4080910 | 🇺🇸 US 🇨🇦 CA | Multi V-BeltSerpentine | View on Amazon |
| DAYCO Fits: 6.7L L6 DIESEL Turbocharged | 5080910 | 🇺🇸 US 🇨🇦 CA | Serpentine | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 6.7L L6 DIESEL Turbocharged | K080907 | 🇺🇸 US 🇨🇦 CA | Micro-V | View on Amazon |
This table covers the serpentine and accessory belts that drive the front accessories. Typical signs include squeal on cold start, cracks across the ribs, or glazing on the back of the belt. A new belt on a worn tensioner will squeal within weeks — spin the idlers by hand while the belt is off.
5 Belt parts for the 2017 Freightliner XC come from 4 brands — CONTINENTAL, FVP, DAYCO and 1 other brand. The "Popular" part is GATES K080907.
The Economy section lists 2 options from CONTINENTAL and FVP — the catalog's value-priced group. CONTINENTAL 910K8MK is listed in this group.
In the Standard Replacement grade, CONTINENTAL and DAYCO supply 2 parts: built to original-equipment specification. A representative part number is CONTINENTAL 4080910.
1 further part sits outside the graded sections, with the same engine-level match.
Listed part numbers: GATES K080907, CONTINENTAL 910K8MK and FVP 910K8, plus the other parts above.
Belt Tensioner
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 419375 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 6.7L L6 DIESEL Turbocharged | SK89930 | 🇺🇸 US 🇨🇦 CA | Air Conditioning, Alternator, Fan and Water Pump | View on Amazon |
| SKP Fits: 6.7L L6 DIESEL Turbocharged | SK89490 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: 6.7L L6 DIESEL Turbocharged | 89930 | 🇺🇸 US 🇨🇦 CA | Air Conditioning, Alternator and Water Pump | View on Amazon |
| GATES Popular Fits: 6.7L L6 DIESEL Turbocharged | 38702 | 🇺🇸 US 🇨🇦 CA | Fleet Runner | View on Amazon |
| LITENS Fits: 6.7L L6 DIESEL Turbocharged | 910588A | 🇺🇸 US 🇨🇦 CA | Air Conditioning, Alternator, Fan and Water Pump | 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.
6 Belt Tensioner parts are listed for the 2017 Freightliner XC, from SKP, DORMAN, DAYCO and 2 other brands. DAYCO 89930 carries the "Popular" badge.
Economy: 3 parts, from SKP and DORMAN. A representative part number is DORMAN 419375.
The Standard Replacement section: 3 options from DAYCO, GATES and LITENS. DAYCO 89930 is listed in this group.
This group includes DAYCO 89930, DORMAN 419375 and SKP SK89930 and the remaining parts above.
Idler Pulley
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 4195011 | 🇺🇸 US 🇨🇦 CA | Grooved | 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: DORMAN 4195011.
Buying Belt Drive Parts for a 2017 Freightliner XC
On this vehicle, the belt drive system spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.
- Match the engine first. Every belt drive part here is engine-specific; each row shows which engine(s) it fits.
- 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 Belt .
Frequently Asked Questions
How many belt drive parts fit the 2017 Freightliner XC?
Our catalog currently lists 12 belt drive parts for the 2017 Freightliner XC across 3 subcategories and 7 brands, covering both the 14.9L L6 DIESEL Turbocharged and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do belt drive parts differ between 2017 Freightliner XC engines?
Yes. Every belt drive part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of belt drive problems on a 2017 Freightliner XC?
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 2017 Freightliner XC 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 2017 Freightliner XC?
First match the engine — each row shows which engine(s) the part fits. 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 2017 Freightliner XC
Belt Drive Parts for Other Freightliner XC Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.