2021 Chevrolet Suburban Electrical Bulb & Socket Parts

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. Read more

7 Back Up / Reverse Lamp Bulb parts are listed for the 2021 Chevrolet Suburban, from SYLVANIA, WAGNER and GM GENUINE. SYLVANIA 921LL carries the "Popular" badge.

The Extended Life section lists 2 options from SYLVANIA and WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. SYLVANIA 921LL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section lists 1 option from SYLVANIA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. SYLVANIA 921ST is listed in this group.

In the LED (instant-on, long life, energy-saving) grade, WAGNER 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 WAGNER 921WLED.

The Standard Replacement section lists 3 options from WAGNER, GM GENUINE and SYLVANIA — built to original-equipment specification. WAGNER 921 is listed in this group.

This group includes SYLVANIA 921LL and SYLVANIA 921ST and the remaining parts above.

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. Read more

8 Brake Light Bulb parts are listed for the 2021 Chevrolet Suburban, from SYLVANIA, GM GENUINE and PHILIPS. SYLVANIA 7440LL carries the "Popular" badge.

The Extended Life section: 1 option from SYLVANIA. SYLVANIA 7440LL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7440ST is listed in this group.

LED (instant-on, long life, energy-saving): 3 parts, from SYLVANIA and PHILIPS. A representative part number is PHILIPS 7440RLED.

The Standard Replacement section: 3 options from GM GENUINE and SYLVANIA. SYLVANIA 7440 is listed in this group.

Part numbers include SYLVANIA 7440LL, SYLVANIA 7440ST and PHILIPS 7440RLED, among others listed above.

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. Read more

16 Headlamp Bulb parts for the 2021 Chevrolet Suburban come from 3 brands — WAGNER, SYLVANIA and GM GENUINE. The "Popular" part is SYLVANIA H11LL.

Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11LL.

Extra Bright (improved visibility, but shorter life): 8 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11XV.

In the HID (intense white light) grade, WAGNER supplies 1 part: grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. A representative part number is WAGNER D3S.

Standard Replacement: 5 parts, from WAGNER, SYLVANIA and GM GENUINE. A representative part number is SYLVANIA H11.

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. Read more

This group shows a single part: GM GENUINE 84389022.

This table covers the LED Bulb adapters. Read more

2 LED Bulb Adapter parts for the 2021 Chevrolet Suburban come from WAGNER.

Part numbers include WAGNER CB900590069012 and WAGNER CBH8H11H16.

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. Read more

3 Parking Lamp Bulb parts for the 2021 Chevrolet Suburban come from 2 brands — WAGNER and PHILIPS.

Extended Life: 2 parts, from PHILIPS and WAGNER. A representative part number is PHILIPS 7444NALL.

Standard Replacement: 1 part, from WAGNER. A representative part number is WAGNER 7440.

Part numbers include PHILIPS 7444NALL, WAGNER 7440LL and WAGNER 7440.

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. Read more

One part is listed for the 2021 Chevrolet Suburban — GM GENUINE 85051907.

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. Read more

This group shows a single part: PHILIPS 7440RLED.

This table covers the bulbs in the trunk or cargo-area 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. Read more

This group shows a single part: GM GENUINE 85051912.

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. Read more

8 Turn Signal Lamp Bulb parts are listed for the 2021 Chevrolet Suburban, from SYLVANIA, WAGNER, GM GENUINE and 1 other brand. PHILIPS 7444NALL carries the "Popular" badge.

The Extended Life section: 4 options from SYLVANIA, PHILIPS and WAGNER. PHILIPS 7444NALL is listed in this group.

The Standard Replacement section: 4 options from GM GENUINE, SYLVANIA and WAGNER. GM GENUINE 13596817 is listed in this group.

This group includes PHILIPS 7444NALL and SYLVANIA 7440ALL and the remaining parts above.