4 Electrical switch & relay parts are listed for the 2017 Freightliner XC, in 2 part types, covering both the 14.9L L6 DIESEL Turbocharged and the 6.7L L6 DIESEL Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
The switch and relay system on the 2017 Freightliner XC covers the switches, relays and flashers that route power to everything the driver touches. All 4 listed parts are Oil Pressure Sender / Switch (3 parts) and Blower Switch (1 part).
The 2017 Freightliner XC was sold with both the 14.9L L6 DIESEL Turbocharged and the 6.7L L6 DIESEL Turbocharged. 1 part fits every engine; the other 3 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2017 Freightliner XC electrical switch & relay parts are WELLS (1 part), DORMAN (1 part) and GPD (1 part), plus 1 more brand.
Each part number listed for the 2017 Freightliner XC opens a page with every vehicle that part fits.
Blower Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2017 XC engines | 1S15851 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Blower switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: WELLS 1S15851.
Oil Pressure Sender / Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 9045050 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 1815437 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 14.9L L6 DIESEL Turbocharged | 10011004 | 🇺🇸 US 🇨🇦 CA | Cummins OEM # 4921517 | View on Amazon |
This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.
3 Oil Pressure Sender / Switch parts for the 2017 Freightliner XC come from 3 brands — DORMAN, GPD and WALKER PRODUCTS.
Listed part numbers: DORMAN 9045050, GPD 1815437 and WALKER PRODUCTS 10011004.
Buying Electrical Switch & Relay Parts for a 2017 Freightliner XC
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Match the engine first. Some electrical switch & relay parts fit every engine; others are 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil Pressure Sender / Switch and Blower Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2017 Freightliner XC?
Our catalog currently lists 4 electrical switch & relay parts for the 2017 Freightliner XC across 2 subcategories and 4 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 electrical switch & relay parts differ between 2017 Freightliner XC engines?
Some do. 1 part fits every engine; the other 3 are engine-specific. Each row (and the filter at the top) shows which. 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 electrical switch & relay problems on a 2017 Freightliner XC?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
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 swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2017 Freightliner XC
Electrical Switch & Relay Parts for Other Freightliner XC Years
Switch vehicle or jump to a subcategory
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.