This page lists 12 electrical bulb & socket parts for the 2018 Freightliner Cascadia, across 3 part types, covering all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.
On the 2018 Freightliner Cascadia, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. All 12 listed parts are Fog / Driving Lamp Bulb (5 parts), Headlamp Bulb (5 parts) and LED Bulb Adapter (2 parts).
The 2018 Freightliner Cascadia was sold with 5 engines. All 12 parts on this page fit every engine.
Every electrical bulb & socket part listed for the 2018 Freightliner Cascadia comes from WAGNER. Quality grades include Extra Bright, Standard Replacement and Extended Life.
2 parts on this 2018 Freightliner Cascadia page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WAGNER 1255H11 (Fog / Driving Lamp Bulb) and WAGNER 1255H11 (Headlamp Bulb). Click any part number to see every vehicle that part fits.
Fog / Driving Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2018 Cascadia engines | 1255H11LL | 🇺🇸 US | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2018 Cascadia engines | H11BLX | 🇺🇸 US | BritelitePGJ19-2 Base | View on Amazon |
| WAGNER Fits: all 2018 Cascadia engines | H11TVX | 🇺🇸 US | Truview Plus1.733 Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2018 Cascadia engines | H11LED | 🇺🇸 US | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2018 Cascadia engines | 1255H11 | 🇺🇸 US | Bulb Color: Clear | View on Amazon |
This table covers the bulbs in the fog and driving lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
5 Fog / Driving Lamp Bulb parts for the 2018 Freightliner Cascadia come from WAGNER. The "Popular" part is WAGNER 1255H11. Every part fits all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged).
In the Extended Life grade, WAGNER supplies 1 part: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is WAGNER 1255H11LL.
In the Extra Bright (improved visibility, but shorter life) grade, WAGNER supplies 2 parts: grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. A representative part number is WAGNER H11BLX.
The LED (instant-on, long life, energy-saving) section lists 1 option from WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. WAGNER H11LED is listed in this group.
In the Standard Replacement grade, WAGNER supplies 1 part: built to original-equipment specification. A representative part number is WAGNER 1255H11.
Listed part numbers: WAGNER 1255H11, WAGNER 1255H11LL and WAGNER H11BLX, plus the other parts above.
Headlamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2018 Cascadia engines | 1255H11LL | 🇺🇸 US | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2018 Cascadia engines | H11BLX | 🇺🇸 US | BritelitePGJ19-2 Base | View on Amazon |
| WAGNER Fits: all 2018 Cascadia engines | H11TVX | 🇺🇸 US | Truview Plus1.733 Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2018 Cascadia engines | 1255H11 | 🇺🇸 US | Bulb Color: Clear | View on Amazon |
| WAGNER Fits: all 2018 Cascadia engines | 1255H3 | 🇺🇸 US | High Beam and Low BeamHalogen Capsule | View on Amazon |
This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb.
5 Headlamp Bulb parts for the 2018 Freightliner Cascadia come from WAGNER. The "Popular" part is WAGNER 1255H11. Every part fits all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged).
Extended Life: 1 part, from WAGNER. A representative part number is WAGNER 1255H11LL.
Extra Bright (improved visibility, but shorter life): 2 parts, from WAGNER. A representative part number is WAGNER H11BLX.
Standard Replacement: 2 parts, from WAGNER. A representative part number is WAGNER 1255H11.
Listed part numbers: WAGNER 1255H11, WAGNER 1255H11LL and WAGNER H11BLX, plus the other parts above.
LED Bulb Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2018 Cascadia engines | CBH8H11H16 | 🇺🇸 US | For H8 / H11 / H16 Bulb | View on Amazon |
| WAGNER Fits: all 2018 Cascadia engines | CBH1H3 | 🇺🇸 US | For H1 / H3 Bulb | View on Amazon |
This table covers the LED Bulb adapters.
2 LED Bulb Adapter parts for the 2018 Freightliner Cascadia come from WAGNER. Every part fits all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged).
Listed part numbers: WAGNER CBH8H11H16 and WAGNER CBH1H3.
Buying Electrical Bulb & Socket Parts for a 2018 Freightliner Cascadia
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- You do not need to pick an engine: every electrical bulb & socket part on this page fits all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged).
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Fog / Driving Lamp Bulb and Headlamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2018 Freightliner Cascadia?
Our catalog currently lists 12 electrical bulb & socket parts for the 2018 Freightliner Cascadia across 3 subcategories and 1 brand, covering all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2018 Freightliner Cascadia engines?
No. On this page every electrical bulb & socket part fits all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged). You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of electrical bulb & socket problems on a 2018 Freightliner Cascadia?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. 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 bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
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 2018 Freightliner Cascadia 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 2018 Freightliner Cascadia?
Every part on this page already fits all 5 engine options (11.9L L6 Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L DIESEL Turbocharged). Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Freightliner Cascadia
Electrical Bulb & Socket Parts for Other Freightliner Cascadia Years
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