40 Electrical bulb & socket parts are listed for the 2011 International Workstar, in 8 part types, covering all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more). Each one has a brand, a manufacturer part number and notes that say where it fits.
The bulb and socket system on the 2011 International Workstar covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. The largest groups are Tail Lamp Bulb (8 parts), Turn Signal Lamp Bulb (7 parts) and Dome Light Bulb (6 parts). The other 5 part types cover the remaining 19 parts.
The 2011 International Workstar was sold with 6 engines. All 40 parts on this page fit every engine.
The most listed brands for 2011 International Workstar electrical bulb & socket parts are WAGNER (31 parts) and PHILIPS (9 parts). Quality grades include Standard Replacement, Extended Life and LED.
10 parts on this 2011 International Workstar page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WAGNER 3157 (Brake Light Bulb) and PHILIPS 2122 (Dome Light Bulb). Click any part number to see every vehicle that part fits.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | 3157LL | 🇺🇸 US | Long Life8.260 Watt | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157NALL | 🇺🇸 US | Long LifeNatural Amber | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2011 Workstar engines | 3157RLED | 🇺🇸 US 🇨🇦 CA | Ultinon LEDRed | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2011 Workstar engines | 3157 | 🇺🇸 US | Double Contact Wedge Base26.880 Watt | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157NA | 🇺🇸 US | Natural AmberDouble Contact Wedge Base | 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.
5 Brake Light Bulb parts are listed for the 2011 International Workstar, from WAGNER and PHILIPS. WAGNER 3157 carries the "Popular" badge. All of them fit every engine offered in the 2011 Workstar.
The Extended Life section lists 2 options from WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. WAGNER 3157LL is listed in this group.
In the LED (instant-on, long life, energy-saving) grade, PHILIPS supplies 1 part: grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. A representative part number is PHILIPS 3157RLED.
The Standard Replacement section lists 2 options from WAGNER — built to original-equipment specification. WAGNER 3157 is listed in this group.
Listed part numbers: WAGNER 3157, WAGNER 3157LL and WAGNER 3157NALL, plus the other parts above.
Dome Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | 2122LL | 🇺🇸 US | Long LifeDouble End Cap Base | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 2112LL | 🇺🇸 US | Long LifeWire Lead Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | 2112WLED | 🇺🇸 US | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: all 2011 Workstar engines | 2122 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAGNER Popular Fits: all 2011 Workstar engines | 2112 | 🇺🇸 US | Wire Lead Base12.420 Watt | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 2122 | 🇺🇸 US | Double End Cap Base9.990 Watt | 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.
6 Dome Light Bulb parts are listed for the 2011 International Workstar, from WAGNER and PHILIPS. PHILIPS 2122 carries the "Popular" badge. All of them fit every engine offered in the 2011 Workstar.
The Extended Life section: 2 options from WAGNER. WAGNER 2122LL is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from WAGNER. A representative part number is WAGNER 2112WLED.
The Standard Replacement section: 3 options from WAGNER and PHILIPS. PHILIPS 2122 is listed in this group.
Part numbers include PHILIPS 2122, WAGNER 2122LL and WAGNER 2112LL, among others listed above.
Fog / Driving Lamp Bulb
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2011 Workstar engines | H3PR | 🇺🇸 US 🇨🇦 CA | Vision30% More Light | View on Amazon |
| PHILIPS Fits: all 2011 Workstar engines | H3CV | 🇺🇸 US 🇨🇦 CA | Crystal Vision UltraBright White Xenon-Look | View on Amazon |
| PHILIPS Fits: all 2011 Workstar engines | H3CVP | 🇺🇸 US 🇨🇦 CA | Crystal Vision PlatinumUp to 60% More Light | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2011 Workstar engines | H3USLED | 🇺🇸 US 🇨🇦 CA | Ultinon Sport LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: all 2011 Workstar engines | H3 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| WAGNER Popular Fits: all 2011 Workstar engines | 1255H3 | 🇺🇸 US | FrontHalogen Capsule | 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.
6 Fog / Driving Lamp Bulb parts for the 2011 International Workstar come from 2 brands — PHILIPS and WAGNER. The "Popular" part is PHILIPS H3. Every part fits all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more).
In the Extra Bright (improved visibility, but shorter life) grade, PHILIPS supplies 3 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 PHILIPS H3PR.
The LED (instant-on, long life, energy-saving) section: 1 option from PHILIPS. PHILIPS H3USLED is listed in this group.
Standard Replacement: 2 parts, from PHILIPS and WAGNER. A representative part number is PHILIPS H3.
Part numbers include PHILIPS H3, PHILIPS H3PR and PHILIPS H3CV, among others listed above.
Headlamp Bulb
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | H6024BL | 🇺🇸 US | Up To 20% More Light | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | H6024 | 🇺🇸 US | High Beam and Low BeamHalogen | 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.
2 Headlamp Bulb parts for the 2011 International Workstar come from WAGNER. Every part fits all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more).
Extra Bright (improved visibility, but shorter life): 1 part, from WAGNER. A representative part number is WAGNER H6024BL.
Standard Replacement: 1 part, from WAGNER. A representative part number is WAGNER H6024.
Listed part numbers: WAGNER H6024BL and WAGNER H6024.
LED Bulb Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | CBH1H3 | 🇺🇸 US | For H1 / H3 Bulb | View on Amazon |
This table covers the LED Bulb adapters.
This group shows a single part: WAGNER CBH1H3.
Roof Marker & Identification Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | 194LL | 🇺🇸 US | Long LifeBulb Type: T-3-1/4 Bulb 13/32 (10mm) Diameter | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 168LL | 🇺🇸 US | Long LifeWedge Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2011 Workstar engines | 168 | 🇺🇸 US | Wedge Base4.900 Watt | View on Amazon |
| PHILIPS Fits: all 2011 Workstar engines | 193 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAGNER Fits: all 2011 Workstar engines | 194 | 🇺🇸 US | Wedge Base3.780 Watt | View on Amazon |
This table covers the replacement bulbs for the Roof Marker & Identification Light. 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 Roof Marker & Identification Light Bulb parts for the 2011 International Workstar come from 2 brands — WAGNER and PHILIPS. The "Popular" part is WAGNER 168. Every part fits all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more).
Extended Life: 2 parts, from WAGNER. A representative part number is WAGNER 194LL.
Standard Replacement: 3 parts, from WAGNER and PHILIPS. A representative part number is WAGNER 168.
Listed part numbers: WAGNER 168, WAGNER 194LL and WAGNER 168LL, plus the other parts above.
Tail Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | 3157LL | 🇺🇸 US | Long Life8.260 Watt | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157NALL | 🇺🇸 US | Long LifeNatural Amber | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2011 Workstar engines | 3157RLED | 🇺🇸 US 🇨🇦 CA | Ultinon LEDRed | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157WLED | 🇺🇸 US | LED | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157NALED | 🇺🇸 US | LEDNatural Amber | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157RLED | 🇺🇸 US | RedLED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2011 Workstar engines | 3157 | 🇺🇸 US | Double Contact Wedge Base26.880 Watt | View on Amazon |
| WAGNER Popular Fits: all 2011 Workstar engines | 3157NA | 🇺🇸 US | Natural AmberDouble Contact Wedge Base | 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.
8 Tail Lamp Bulb parts for the 2011 International Workstar come from 2 brands — WAGNER and PHILIPS. The "Popular" part is WAGNER 3157. Every part fits all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more).
Extended Life: 2 parts, from WAGNER. A representative part number is WAGNER 3157LL.
The LED (instant-on, long life, energy-saving) section: 4 options from WAGNER and PHILIPS. PHILIPS 3157RLED is listed in this group.
Standard Replacement: 2 parts, from WAGNER. A representative part number is WAGNER 3157.
Listed part numbers: WAGNER 3157, WAGNER 3157LL and WAGNER 3157NALL, plus the other parts above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | 3157LL | 🇺🇸 US | Long Life8.260 Watt | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157NALL | 🇺🇸 US | Long LifeNatural Amber | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2011 Workstar engines | 3157WLED | 🇺🇸 US | LED | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157NALED | 🇺🇸 US | LEDNatural Amber | View on Amazon |
| WAGNER Fits: all 2011 Workstar engines | 3157RLED | 🇺🇸 US | RedLED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2011 Workstar engines | 3157 | 🇺🇸 US | Double Contact Wedge Base26.880 Watt | View on Amazon |
| WAGNER Popular Fits: all 2011 Workstar engines | 3157NA | 🇺🇸 US | Natural AmberDouble Contact Wedge Base | 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.
WAGNER supplies the 7 Turn Signal Lamp Bulb parts for the 2011 International Workstar. WAGNER 3157 carries the "Popular" badge. All of them fit every engine offered in the 2011 Workstar.
The Extended Life section: 2 options from WAGNER. WAGNER 3157LL is listed in this group.
LED (instant-on, long life, energy-saving): 3 parts, from WAGNER. A representative part number is WAGNER 3157WLED.
The Standard Replacement section: 2 options from WAGNER. WAGNER 3157 is listed in this group.
Part numbers include WAGNER 3157, WAGNER 3157LL and WAGNER 3157NALL, among others listed above.
Buying Electrical Bulb & Socket Parts for a 2011 International Workstar
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 (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL 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: Tail Lamp Bulb and Turn Signal Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2011 International Workstar?
Our catalog currently lists 40 electrical bulb & socket parts for the 2011 International Workstar across 8 subcategories and 2 brands, covering all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2011 International Workstar engines?
No. On this page every electrical bulb & socket part fits all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL 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 2011 International Workstar?
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 2011 International Workstar 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 2011 International Workstar?
Every part on this page already fits all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL 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 2011 International Workstar
Electrical Bulb & Socket Parts for Other International Workstar Years
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