2009 Cadillac STS 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

8 Back Up / Reverse Lamp Bulb parts for the 2009 Cadillac STS come from 5 brands — SYLVANIA, HELLA, PHILIPS and 2 other brands. The "Popular" part is HELLA 3157.

In the Extended Life grade, HELLA and SYLVANIA supply 2 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is HELLA 3157LL.

In the Extra Bright (improved visibility, but shorter life) grade, SYLVANIA supplies 1 part: 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 SYLVANIA 3157ST.

The LED (instant-on, long life, energy-saving) section lists 1 option from PHILIPS — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. PHILIPS 3157WLED is listed in this group.

In the Standard Replacement grade, HELLA, SYLVANIA, ACDELCO and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is HELLA 3157.

Part numbers include HELLA 3157, HELLA 3157LL and SYLVANIA 3157ST, among others listed above.

This table covers the bulbs used as daytime running 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 Daytime Running Light Bulb parts are listed for the 2009 Cadillac STS, from SYLVANIA, HELLA, PHILIPS and 2 other brands. HELLA 3157 carries the "Popular" badge.

The Extended Life section: 2 options from HELLA and SYLVANIA. HELLA 3157LL is listed in this group.

The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 3157ST is listed in this group.

LED (instant-on, long life, energy-saving): 1 part, from PHILIPS. A representative part number is PHILIPS 3157WLED.

The Standard Replacement section: 4 options from HELLA, SYLVANIA, ACDELCO and 1 other brand. HELLA 3157 is listed in this group.

This group includes HELLA 3157, HELLA 3157LL and SYLVANIA 3157ST and the remaining parts above.

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. Read more

6 Dome Light Bulb parts for the 2009 Cadillac STS come from 4 brands — SYLVANIA, WAGNER, DORMAN and 1 other brand. The "Popular" part is DORMAN 212WSMD.

Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 2122LL.

The LED (instant-on, long life, energy-saving) section: 1 option from DORMAN. DORMAN 212WSMD is listed in this group.

Standard Replacement: 3 parts, from PHILIPS, SYLVANIA and WAGNER. A representative part number is PHILIPS 2122.

This group includes DORMAN 212WSMD and SYLVANIA 2122LL and the remaining parts above.

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. Read more

37 Fog / Driving Lamp Bulb parts are listed for the 2009 Cadillac STS, from SYLVANIA, HELLA, WAGNER and 2 other brands. SYLVANIA H11LL carries the "Popular" badge. They are grouped as Extended Life, Extra Bright (improved visibility, but shorter life), LED (instant-on, long life, energy-saving), Reduced Glare (for rain, fog, snow, or rural driving) and Standard Replacement, with Extra Bright (improved visibility, but shorter life) the largest group at 15 parts from SYLVANIA, HELLA, PHILIPS and 2 other brands.

This table covers the sockets that hold a Fog / Driving Lamp bulb. 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

4 Fog / Driving Lamp Socket parts are listed for the 2009 Cadillac STS, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and WELLS.

This group includes STANDARD MOTOR PRODUCTS S2611, STANDARD MOTOR PRODUCTS LWH110 and WALKER PRODUCTS 2701120 and the remaining parts above.

This table covers the bulbs in the glove-box 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

One part is listed for the 2009 Cadillac STS — GM GENUINE 19115808.

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

34 Headlamp Bulb parts are listed for the 2009 Cadillac STS, from SYLVANIA, HELLA, WAGNER and 4 other brands. SYLVANIA H11LL carries the "Popular" badge. They are grouped as Extended Life, Extra Bright (improved visibility, but shorter life), HID (intense white light), LED (instant-on, long life, energy-saving), Reduced Glare (for rain, fog, snow, or rural driving) and Standard Replacement, with Extra Bright (improved visibility, but shorter life) the largest group at 12 parts from SYLVANIA, HELLA and WAGNER.

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

21 Headlamp Socket parts are listed for the 2009 Cadillac STS, from STANDARD MOTOR PRODUCTS, DORMAN, WELLS and 5 other brands. SKP SKS553 carries the "Popular" badge.

This table covers the LED Bulb adapters. Read more

WAGNER supplies both parts for the 2009 Cadillac STS.

This group includes WAGNER CB900590069012 and WAGNER CBH1H3.

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. Read more

9 License Plate Lamp Bulb parts for the 2009 Cadillac STS come from 3 brands — SYLVANIA, HELLA and WAGNER. The "Popular" part is HELLA 921LED5K.

Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 2825LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825ST.

The LED (instant-on, long life, energy-saving) section: 2 options from HELLA and SYLVANIA. HELLA 921LED5K is listed in this group.

Standard Replacement: 4 parts, from HELLA, SYLVANIA and WAGNER. A representative part number is HELLA 2825.

Listed part numbers: HELLA 921LED5K, SYLVANIA 2825LL and WAGNER 17177LL, plus the other parts above.

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. Read more

2 Map / Reading Light Bulb parts for the 2009 Cadillac STS come from 2 brands — ACDELCO and PHILIPS.

Listed part numbers: ACDELCO 9442441 and PHILIPS PC168.

This table covers the replacement bulbs for the Overhead Console 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. Read more

This group shows a single part: ACDELCO 9442441.