2021 Chevrolet Silverado 3500 Electrical Bulb & Socket Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

The 2021 Chevrolet Silverado 3500 has 59 electrical bulb & socket parts with verified fitment on this page — 14 part types and 4 brands, covering both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged. Each part includes a manufacturer part number and application notes.

On the 2021 Chevrolet Silverado 3500, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. Most of the listed parts are Headlamp Bulb (20 parts), Brake Light Bulb (11 parts) and Back Up / Reverse Lamp Bulb (6 parts). The other 11 part types cover the remaining 22 parts.

Back Up / Reverse Lamp Bulb

Extended Life

Brand Part Number Markets Notes Buy
PHILIPS Popular Fits: 6.6L V8 DIESEL Turbocharged 1156LL
🇺🇸 US 🇨🇦 CA
Longer Life
Fitment notes — PHILIPS 1156LL
Longer Life
without Fleetside
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 921LL
🇺🇸 US 🇨🇦 CA
Long LifeWedge Base
Fitment notes — WAGNER 921LL
Long LifeWedge Base17.920 WattBulb Type: T-5 Bulb 5/8 (16mm) Diameter
View on
Amazon

LED (instant-on, long life, energy-saving)

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 921WLED
🇺🇸 US 🇨🇦 CA
LEDWhite
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
WAGNER Popular Fits: 6.6L V8 DIESEL Turbocharged 921
🇺🇸 US 🇨🇦 CA
Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current)
Fitment notes — WAGNER 921
Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current)Wedge Base17.920 Watt
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged L1156
🇺🇸 US 🇨🇦 CA
Height: 1.2 InTerminal Type: Pressure Contact
Fitment notes — GM GENUINE L1156
Height: 1.2 InTerminal Type: Pressure Contact
STANDARD12V 27W
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13503360
🇺🇸 US 🇨🇦 CA
Fits 82.2" bed or 98.2" bedFleetside
Fitment notes — GM GENUINE 13503360
Fits:
82.2" bed or 98.2" bedFleetsideTrade # W16WSingle Rear Wheels (SRW)Clearor 82.2" bed or 98.2" bedFleetsideTrade # W16WDual Rear Wheel, Ride and Handling (DZW)Clear
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.

Brake Light Bulb

Extended Life

Brand Part Number Markets Notes Buy
SYLVANIA Popular Fits: 6.6L V8 DIESEL Turbocharged 1157LL
🇺🇸 US 🇨🇦 CA
Long LifeBase Type: BAY15D
Fitment notes — SYLVANIA 1157LL
Long LifeBase Type: BAY15DWattage: 26.90 W
with Step Side
View on
Amazon
SYLVANIA Popular Fits: 6.6L V8 DIESEL Turbocharged 7444NALL
🇺🇸 US 🇨🇦 CA
Long LifeAmber
Fitment notes — SYLVANIA 7444NALL
Long LifeAmberBase Type: W3X16QWattage: 8.30 W
without Step Side
View on
Amazon

Extra Bright (improved visibility, but shorter life)

Brand Part Number Markets Notes Buy
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 1157ST
🇺🇸 US 🇨🇦 CA
Silver StarCool White
Fitment notes — SYLVANIA 1157ST
Silver StarCool WhiteColor Temperature: 3200 KVBase Type: BAY15DWattage: 26.90 W
with Step Side
View on
Amazon

LED (instant-on, long life, energy-saving)

Brand Part Number Markets Notes Buy
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 1157SL
🇺🇸 US 🇨🇦 CA
LED
Fitment notes — SYLVANIA 1157SL
LED
with Step Side
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 1157RSL
🇺🇸 US 🇨🇦 CA
LED
Fitment notes — SYLVANIA 1157RSL
LED
with Step Side
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 1157LED
🇺🇸 US 🇨🇦 CA
ZEVO
Fitment notes — SYLVANIA 1157LED
ZEVO
with Step Side
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
SYLVANIA Popular Fits: 6.6L V8 DIESEL Turbocharged 1157
🇺🇸 US 🇨🇦 CA
Base Type: BAY15DWattage: 26.90 W
Fitment notes — SYLVANIA 1157
Base Type: BAY15DWattage: 26.90 W
with Step Side
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged L1157
🇺🇸 US 🇨🇦 CA
Height: 2 inSecondary Average Rated Life: 800 Hour
Fitment notes — GM GENUINE L1157
Height: 2 inSecondary Average Rated Life: 800 HourTerminal Type: Pressure Contact
Fits:
Cab & Chassis2 door146.3" Wheelbase or 170.8" Wheelbase12V, 27/8W, Trade # 1157
or:
Cab & Chassis4 door176.7" Wheelbase12V, 27/8W, Trade # 1157
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13579188
🇺🇸 US 🇨🇦 CA
Fits TRADE # 7444NAAMBER GLASS BULB
Fitment notes — GM GENUINE 13579188
Fits:
TRADE # 7444NAAMBER GLASS BULBCHEVROLET LTD /G.M.C. LIMITED (J21)
or:
82.2" bed or 98.2" bedFleetsideTrade # 7444NAAmber Glass Bulb
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13591403
🇺🇸 US 🇨🇦 CA
82.2" bed or 98.2" bedFleetside
Fitment notes — GM GENUINE 13591403
82.2" bed or 98.2" bedFleetsideClear Glass Bulb
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 7444
🇺🇸 US 🇨🇦 CA
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.

Brake Light Bulb - High Mount

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13503403
🇺🇸 US 🇨🇦 CA
2 doorRST Trim Package (GFC), Trail Boss LT Trim Package (GF4)
View on
Amazon

This table covers the bulbs in the high-mount stop lamp. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.

Fog / Driving Lamp Bulb

LED (instant-on, long life, energy-saving)

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 5202WLED
🇺🇸 US 🇨🇦 CA
FrontLED Replacement
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 5202
🇺🇸 US 🇨🇦 CA
Front
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.

Headlamp Bulb

Extended Life

Brand Part Number Markets Notes Buy
SYLVANIA Popular Fits: 6.6L V8 DIESEL Turbocharged H11LL
🇺🇸 US 🇨🇦 CA
Long Life
Fitment notes — SYLVANIA H11LL
Long Life
Low Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 9005LL
🇺🇸 US 🇨🇦 CA
Long Life
Fitment notes — SYLVANIA 9005LL
Long Life
High Beam
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 1255H11LL
🇺🇸 US 🇨🇦 CA
Long Life
Fitment notes — WAGNER 1255H11LL
Long Life
Low Beamwith Factory HalogensHalogen
View on
Amazon

Extra Bright (improved visibility, but shorter life)

Brand Part Number Markets Notes Buy
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 9005XV
🇺🇸 US 🇨🇦 CA
Xtra VisionColor Temperature: 3200 KV
Fitment notes — SYLVANIA 9005XV
Xtra VisionColor Temperature: 3200 KVBase Type: P20DWattage: 65.00 W
High Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged H11XV
🇺🇸 US 🇨🇦 CA
Xtra VisionColor Temperature: 3200 KV
Fitment notes — SYLVANIA H11XV
Xtra VisionColor Temperature: 3200 KVBase Type: PGJ19-2 or PGJ19Wattage: 55.00 W
Low Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 9005SU
🇺🇸 US 🇨🇦 CA
Silver Star UltraColor Temperature: 4100 KV
Fitment notes — SYLVANIA 9005SU
Silver Star UltraColor Temperature: 4100 KVBase Type: P20DWattage: 65.00 W
High Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged H11SU
🇺🇸 US 🇨🇦 CA
Silver Star UltraColor Temperature: 4100 KV
Fitment notes — SYLVANIA H11SU
Silver Star UltraColor Temperature: 4100 KVBase Type: PGJ19-2 or PGJ19Wattage: 55.00 W
Low Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 9005ST
🇺🇸 US 🇨🇦 CA
Silver StarColor Temperature: 4000 KV
Fitment notes — SYLVANIA 9005ST
Silver StarColor Temperature: 4000 KVBase Type: P20DWattage: 65.00 W
High Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged H11ST
🇺🇸 US 🇨🇦 CA
Color Temperature: 4000 KVSilver Star
Fitment notes — SYLVANIA H11ST
Color Temperature: 4000 KVSilver StarBase Type: PGJ19 or PGJ19-2Wattage: 55.00 W
Low Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 9005SZG
🇺🇸 US 🇨🇦 CA
Silver Star zXe GOLDColor Temperature: 4200 KV
Fitment notes — SYLVANIA 9005SZG
Silver Star zXe GOLDColor Temperature: 4200 KVBase Type: P20DWattage: 65.00 WExtra White Light
High Beam
View on
Amazon
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged H11SZGP
🇺🇸 US 🇨🇦 CA
Silver Star zXe GOLDBase Type: PGJ19
Fitment notes — SYLVANIA H11SZGP
Silver Star zXe GOLDBase Type: PGJ19Wattage: 55.00 WExtra White Light
Low Beam
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged H11BLX
🇺🇸 US 🇨🇦 CA
BritelitePGJ19-2 Base
Fitment notes — WAGNER H11BLX
BritelitePGJ19-2 Base55.000 Watt80% More Light
Low Beamwith Factory HalogensHalogen
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged H11TVX
🇺🇸 US 🇨🇦 CA
Truview Plus1.733 Base
Fitment notes — WAGNER H11TVX
Truview Plus1.733 Base4.580 WattHID Look
Low Beamwith Factory HalogensHalogen
View on
Amazon

LED (instant-on, long life, energy-saving)

Brand Part Number Markets Notes Buy
SYLVANIA Fits: 6.6L V8 DIESEL Turbocharged 9005SL
🇺🇸 US 🇨🇦 CA
LED
Fitment notes — SYLVANIA 9005SL
LED
High Beam
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
SYLVANIA Popular Fits: 6.6L V8 DIESEL Turbocharged 9005
🇺🇸 US 🇨🇦 CA
Base Type: P20D
Fitment notes — SYLVANIA 9005
Base Type: P20D
or:
Right Angle P20DWattage: 65.00 W
High Beam
View on
Amazon
SYLVANIA Popular Fits: 6.6L V8 DIESEL Turbocharged H11
🇺🇸 US 🇨🇦 CA
Base Type: PGJ19-2
Fitment notes — SYLVANIA H11
Base Type: PGJ19-2
or:
Right AngleWattage: 55.00 W
Low Beam
View on
Amazon
WAGNER Popular Fits: 6.6L V8 DIESEL Turbocharged 1255H11
🇺🇸 US 🇨🇦 CA
Bulb Color: Clear
Fitment notes — WAGNER 1255H11
Bulb Color: Clear
Low Beamwith Factory HalogensHalogen
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13589425
🇺🇸 US 🇨🇦 CA
High BeamLT Model or LTZ Model or WT Model
Fitment notes — GM GENUINE 13589425
High BeamLT Model or LTZ Model or WT ModelTRADE 9005 SL+Halogen Headlamps(T4A)
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13503417
🇺🇸 US 🇨🇦 CA
Low BeamLT Model or LTZ Model or WT Model
Fitment notes — GM GENUINE 13503417
Low BeamLT Model or LTZ Model or WT ModelTrade # 11Halogen Headlamps(T4A)
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 84624411
🇺🇸 US 🇨🇦 CA
High BeamHalogen Headlamps(T4A)
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.

Headlamp Socket

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 84389022
🇺🇸 US 🇨🇦 CA
Fits High Country or LT Model or LTZ ModelLED HEADLAMPS(T4L)
Fitment notes — GM GENUINE 84389022
Fits:
High Country or LT Model or LTZ ModelLED HEADLAMPS(T4L)
or:
LT Model or LTZ Model or WT ModelHalogen Headlamps(T4A)
View on
Amazon

This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket.

LED Bulb Adapter

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged CB900590069012
🇺🇸 US 🇨🇦 CA
LEDFor 9005 / 9006 / 9012 Bulb
Fitment notes — WAGNER CB900590069012
LEDFor 9005 / 9006 / 9012 Bulb
with LED Bulb
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged CBH8H11H16
🇺🇸 US 🇨🇦 CA
For H8 / H11 / H16 Bulb
Fitment notes — WAGNER CBH8H11H16
For H8 / H11 / H16 Bulb
with Factory HalogensHalogenwith LED Bulb
View on
Amazon

This table covers the LED Bulb adapters.

License Plate Lamp Bulb

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13503401
🇺🇸 US 🇨🇦 CA
T3-1/4 MINIATURE WEDGE BASE
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13503359
🇺🇸 US 🇨🇦 CA
SIDE MARKER SOCKET
View on
Amazon

This table covers the bulbs that light the license plate. 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.

Parking Lamp Bulb

Extended Life

Brand Part Number Markets Notes Buy
PHILIPS Fits: 6.6L V8 DIESEL Turbocharged 7444NALL
🇺🇸 US 🇨🇦 CA
Longer LifeNatural Amber
Fitment notes — PHILIPS 7444NALL
Longer LifeNatural AmberFront
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 7443LL
🇺🇸 US 🇨🇦 CA
Long LifeDouble Contact Wedge Base
Fitment notes — WAGNER 7443LL
Long LifeDouble Contact Wedge Base21.000 Watt
View on
Amazon

LED (instant-on, long life, energy-saving)

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 7443LEDW
🇺🇸 US 🇨🇦 CA
LED
Fitment notes — WAGNER 7443LEDW
LED
LED BULB
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 7443
🇺🇸 US 🇨🇦 CA
Double Contact Wedge Base21.000 Watt
Fitment notes — WAGNER 7443
Double Contact Wedge Base21.000 WattSecondary Wattage: 5.000 Watt
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.

Side Marker Light Bulb

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13503359
🇺🇸 US 🇨🇦 CA
LT Model or WT Model82.2" bed or 98.2" bed
Fitment notes — GM GENUINE 13503359
LT Model or WT Model82.2" bed or 98.2" bedFleetsideSingle Rear Wheels (SRW)Side Marker SocketExcept Sport Package (WBL), Midnight Edition Sales Package (WJP), Sport Pack Sales Package (WPK)
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.

Tail Lamp Bulb

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 7444
🇺🇸 US 🇨🇦 CA
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.

Tail Lamp Socket / Connector Plate

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 84574262
🇺🇸 US 🇨🇦 CA
82.2" bed or 98.2" bedFleetside
Fitment notes — GM GENUINE 84574262
82.2" bed or 98.2" bedFleetsideDual Rear Wheel, Ride and Handling (DZW)6-Pin
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 84574260
🇺🇸 US 🇨🇦 CA
LT Model or WT Model82.2" bed or 98.2" bed
Fitment notes — GM GENUINE 84574260
LT Model or WT Model82.2" bed or 98.2" bedFleetsideSingle Rear Wheels (SRW)
View on
Amazon
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 84574261
🇺🇸 US 🇨🇦 CA
High Country or LTZ ModelSingle Rear Wheels (SRW)
View on
Amazon

This table covers the Tail Lamp Socket / Connector plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.

Turn Signal Indicator Lamp Bulb

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 86287060
🇺🇸 US 🇨🇦 CA
with Bolt
View on
Amazon

This table covers the replacement bulbs for the Turn Signal Indicator 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.

Turn Signal Lamp Bulb

Extended Life

Brand Part Number Markets Notes Buy
PHILIPS Fits: 6.6L V8 DIESEL Turbocharged 7444NALL
🇺🇸 US 🇨🇦 CA
Longer LifeNatural Amber
Fitment notes — PHILIPS 7444NALL
Longer LifeNatural Amber
Fits:
Rear
or:
Front
View on
Amazon

LED (instant-on, long life, energy-saving)

Brand Part Number Markets Notes Buy
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 7443NALED
🇺🇸 US 🇨🇦 CA
Natural AmberLED
Fitment notes — WAGNER 7443NALED
Natural AmberLED
FrontAmber
View on
Amazon

Standard Replacement

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 6.6L V8 DIESEL Turbocharged 13579188
🇺🇸 US 🇨🇦 CA
Fits FrontHigh Country or LTZ Model
Fitment notes — GM GENUINE 13579188
Fits:
FrontHigh Country or LTZ ModelTRADE # 7444NAAMBER GLASS BULBLED HEADLAMPS(T4L)
or:
High Country or LT Model or LTZ ModelTRADE # 7444NAAMBER GLASS BULBLED HEADLAMPS(T4L)
or:
FrontLT Model or LTZ Model or WT ModelTRADE # 7444NAAMBER GLASS BULBHalogen Headlamps(T4A)
View on
Amazon
WAGNER Fits: 6.6L V8 DIESEL Turbocharged 7443NA
🇺🇸 US 🇨🇦 CA
Natural Amber
Fitment notes — WAGNER 7443NA
Natural Amber
Front
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.

Buying Electrical Bulb & Socket Parts for a 2021 Chevrolet Silverado 3500

On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.

  • Match the engine first. Every electrical bulb & socket 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 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 Brake Light Bulb .

Frequently Asked Questions

How many electrical bulb & socket parts fit the 2021 Chevrolet Silverado 3500?

Our catalog currently lists 59 electrical bulb & socket parts for the 2021 Chevrolet Silverado 3500 across 14 subcategories and 4 brands, covering both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.

Do electrical bulb & socket parts differ between 2021 Chevrolet Silverado 3500 engines?

Yes. Every electrical bulb & socket 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 electrical bulb & socket problems on a 2021 Chevrolet Silverado 3500?

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 2021 Chevrolet Silverado 3500 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 2021 Chevrolet Silverado 3500?

First match the engine — each row shows which engine(s) the part fits. 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 2021 Chevrolet Silverado 3500

Electrical Bulb & Socket Parts for Other Chevrolet Silverado 3500 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.