The 2017 Freightliner Cascadia has 41 electrical bulb & socket parts with verified fitment on this page — 12 part types and 2 brands, covering all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more). Each part includes a manufacturer part number and application notes.
The bulb and socket system on the 2017 Freightliner Cascadia covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. The largest groups are Headlamp Bulb (6 parts), Map / Reading Light Bulb (6 parts) and Fog / Driving Lamp Bulb (5 parts). The other 9 part types cover the remaining 24 parts.
The 2017 Freightliner Cascadia was sold with 6 engines. All 41 parts on this page fit every engine.
2 brands supply electrical bulb & socket parts for the 2017 Freightliner Cascadia, led by WAGNER (33 parts) and HELLA (8 parts). Quality grades include Standard Replacement, Extended Life and LED.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2017 Freightliner Cascadia. 6 parts have it, including WAGNER 1255H11 (Fog / Driving Lamp Bulb) and WAGNER H11BLX (Headlamp Bulb). Each part number opens a page with every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 1156LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeSingle Contact Bayonet Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 1156WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2017 Cascadia engines | 1156 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Brightness: 32.0 CPIncandescent | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | 1156 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Single Contact Bayonet Base26.880 Watt | View on Amazon |
This table covers the bulbs in the reverse 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.
4 Back Up / Reverse Lamp Bulb parts for the 2017 Freightliner Cascadia come from 2 brands — WAGNER and HELLA. Every part fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).
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 1156LL.
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 1156WLED is listed in this group.
In the Standard Replacement grade, HELLA and WAGNER supply 2 parts: built to original-equipment specification. A representative part number is HELLA 1156.
This group includes WAGNER 1156LL, WAGNER 1156WLED and HELLA 1156 and the remaining parts above.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 1157LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeDouble Contact Index Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2017 Cascadia engines | 1157 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Incandescent27/8W | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | 1157 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double Contact Index Base26.880 Watt | View on Amazon |
This table covers the bulbs in the stop 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.
3 Brake Light Bulb parts for the 2017 Freightliner Cascadia come from 2 brands — WAGNER and HELLA. Every part fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).
Extended Life: 1 part, from WAGNER. A representative part number is WAGNER 1157LL.
Standard Replacement: 2 parts, from HELLA and WAGNER. A representative part number is HELLA 1157.
This group includes WAGNER 1157LL and HELLA 1157 and the remaining parts above.
Dome Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2017 Cascadia engines | 5008 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: BA15S | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | 17311 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 19mm Bulb DiameterBA15S Base | View on Amazon |
This table covers the bulbs in the dome lamp. 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.
2 Dome Light Bulb parts for the 2017 Freightliner Cascadia come from 2 brands — HELLA and WAGNER. Every part fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).
This group includes HELLA 5008 and WAGNER 17311.
Fog / Driving Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 1255H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | H11BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BritelitePGJ19-2 Base | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | H11TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Truview Plus1.733 Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | H11LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2017 Cascadia engines | 1255H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
WAGNER supplies the 5 Fog / Driving Lamp Bulb parts for the 2017 Freightliner Cascadia. WAGNER 1255H11 carries the "Popular" badge. All of them fit every engine offered in the 2017 Cascadia.
The Extended Life section: 1 option from WAGNER. WAGNER 1255H11LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section lists 2 options from WAGNER — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. WAGNER H11BLX is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from WAGNER. A representative part number is WAGNER H11LED.
The Standard Replacement section: 1 option from WAGNER. WAGNER 1255H11 is listed in this group.
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 2017 Cascadia engines | 1255H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2017 Cascadia engines | H11BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BritelitePGJ19-2 Base | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | H11TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Truview Plus1.733 Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2017 Cascadia engines | 1255H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Color: Clear | View on Amazon |
| HELLA Fits: all 2017 Cascadia engines | H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-2 or Socket Type Bulb: PGJY19-2 | View on Amazon |
| WAGNER Fits: all 2017 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.
6 Headlamp Bulb parts are listed for the 2017 Freightliner Cascadia, from WAGNER and HELLA. WAGNER H11BLX carries the "Popular" badge. All of them fit every engine offered in the 2017 Cascadia.
The Extended Life section: 1 option from WAGNER. WAGNER 1255H11LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 2 options from WAGNER. WAGNER H11BLX is listed in this group.
The Standard Replacement section: 3 options from WAGNER and HELLA. WAGNER 1255H11 is listed in this group.
Part numbers include WAGNER H11BLX, WAGNER 1255H11LL and WAGNER H11TVX, among others listed above.
LED Bulb Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | CBH8H11H16 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | For H8 / H11 / H16 Bulb | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | CBH1H3 | 🇺🇸 US | For H1 / H3 Bulb | View on Amazon |
This table covers the LED Bulb adapters.
WAGNER supplies both parts for the 2017 Freightliner Cascadia. All of them fit every engine offered in the 2017 Cascadia.
Listed part numbers: WAGNER CBH8H11H16 and WAGNER CBH1H3.
Map / Reading Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 17171LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBA15S Base | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | 2112LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWire Lead Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 2112WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2017 Cascadia engines | 7225 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Incandescent21/4W | View on Amazon |
| WAGNER Popular Fits: all 2017 Cascadia engines | 2112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wire Lead Base12.420 Watt | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | 17171 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: Miniature Lamp B-6BA15S Base | View on Amazon |
This table covers the bulbs in the map / reading 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.
6 Map / Reading Light Bulb parts for the 2017 Freightliner Cascadia come from 2 brands — WAGNER and HELLA. The "Popular" part is HELLA 7225. Every part fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).
Extended Life: 2 parts, from WAGNER. A representative part number is WAGNER 17171LL.
The LED (instant-on, long life, energy-saving) section: 1 option from WAGNER. WAGNER 2112WLED is listed in this group.
Standard Replacement: 3 parts, from WAGNER and HELLA. A representative part number is HELLA 7225.
Listed part numbers: HELLA 7225, WAGNER 17171LL and WAGNER 2112LL, plus the other parts above.
Parking Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 4157NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
This table covers the bulbs in the parking 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.
One part is listed for the 2017 Freightliner Cascadia — WAGNER 4157NALL.
Side Marker Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 4157NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
This table covers the bulbs in the side-marker 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.
This group shows a single part: WAGNER 4157NALL.
Step / Courtesy Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 17177LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeW2.1x9.5d Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | T10LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tru View PLUS LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2017 Cascadia engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | 17177 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | W2.1x9.5d Base5.000 Watt | View on Amazon |
This table covers the bulbs in the step and courtesy 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.
4 Step / Courtesy Light Bulb parts for the 2017 Freightliner Cascadia come from 2 brands — WAGNER and HELLA. Every part fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).
Extended Life: 1 part, from WAGNER. A representative part number is WAGNER 17177LL.
The LED (instant-on, long life, energy-saving) section: 1 option from WAGNER. WAGNER T10LED is listed in this group.
Standard Replacement: 2 parts, from HELLA and WAGNER. A representative part number is HELLA 2825.
Listed part numbers: WAGNER 17177LL, WAGNER T10LED and HELLA 2825, plus the other parts above.
Tail Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 1157LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeDouble Contact Index Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 1157WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2017 Cascadia engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2017 Cascadia engines | 1157 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Incandescent27/8W | View on Amazon |
| WAGNER Fits: all 2017 Cascadia engines | 1157 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double Contact Index Base26.880 Watt | View on Amazon |
This table covers the bulbs in the tail 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 Tail Lamp Bulb parts are listed for the 2017 Freightliner Cascadia, from WAGNER and HELLA. HELLA 2825 carries the "Popular" badge. All of them fit every engine offered in the 2017 Cascadia.
The Extended Life section: 1 option from WAGNER. WAGNER 1157LL is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from WAGNER. A representative part number is WAGNER 1157WLED.
The Standard Replacement section: 3 options from HELLA and WAGNER. HELLA 2825 is listed in this group.
Listed part numbers: HELLA 2825, WAGNER 1157LL and WAGNER 1157WLED, plus the other parts above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 4157NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2017 Cascadia engines | 4157NALED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural AmberLED | View on Amazon |
This table covers the bulbs in the turn-signal 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.
2 Turn Signal Lamp Bulb parts for the 2017 Freightliner Cascadia come from WAGNER. Every part fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).
Extended Life: 1 part, from WAGNER. A representative part number is WAGNER 4157NALL.
The LED (instant-on, long life, energy-saving) section: 1 option from WAGNER. WAGNER 4157NALED is listed in this group.
This group includes WAGNER 4157NALL and WAGNER 4157NALED.
Buying Electrical Bulb & Socket Parts for a 2017 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 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).
- 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: Headlamp Bulb and Map / Reading Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2017 Freightliner Cascadia?
Our catalog currently lists 41 electrical bulb & socket parts for the 2017 Freightliner Cascadia across 12 subcategories and 2 brands, covering all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2017 Freightliner Cascadia engines?
No. On this page every electrical bulb & socket part fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more). 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 2017 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 2017 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 2017 Freightliner Cascadia?
Every part on this page already fits all 6 engine options (11.9L, 11.9L DIESEL, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more). 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 2017 Freightliner Cascadia
Electrical Bulb & Socket Parts for Other Freightliner Cascadia Years
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