How to Replace the Headlight Bulb on Buick Rainier?

The procedure to replace Headlight bulbs on envoy or rainier starts with turning off the lamp switch and waiting for bulb temperature reduction to minimize possible glass shattering. Eye protection must be worn at all times while you handle the bulb through its base because touching glass is forbidden and you need to stay away from dirt and wetness. Moist or touched bulbs require cleaning with alcohol or suitable degreaser before they must be properly dried thoroughly. Open the hood then detach both the headlamp and its associated access cover that is situated behind the lamp unit. First disconnect the electrical connector from its socket and then turn the bulb and socket detachable part counterclockwise to extract them from the housing. Installation of new bulbs requires using a high beam bulb with a black socket and a low beam bulb with a socket having gray tip and gray base. The electrical connector should first be inserted in the socket before setting up the bulb and socket and turning them clockwise until the locking tabs click into place. Complete the procedure by putting back the access cover together with the headlamp. The proper disposal of bulbs requires appropriate methods and all halogen bulbs need to remain out of children's access area.

How to replace the front headlight bulb on Buick Century?

Begin by opening the hood then carefully use light pressure on the lens of the headlamp before moving the retainers. Pull up the headlamp retainers to unlock them and these retainers can then be taken off. Remove the headlamp mounting tabs from their places in the upper fascia support and fender reinforcement slots and untangle the electrical connector from the headlamp before pulling out the lamp unit. The installation process begins by taking off the rubber access cover(s) from behind the headlamp bulb(s) which require replacement according to the halogen bulb caution. To disconnect the bulb use a counterclockwise motion on its base before removing the bulb while also detaching its electrical connector. To install the new headlamp bulb connect its electrical connector before putting it into place while securing with bulb base clockwise rotation. Place back the rubber access covers before attaching the electrical connector to the headlamp. Place the mounting tabs of the headlamp into the slots present on the upper fascia support and fender reinforcement while carefully applying light pressure to the lens at installation time of the retainers. Assess the fit of the headlamp while you press down the retainers onto their corresponding mounting tabs until they become fully seated. Close the hood after the inspection and test the headlamp aim especially in cases where a new headlamp installation occurred or front-end service work could have affected the mounting brackets.

How to replace the front headlight bulb on Buick Regal?

After opening the hood users should use light pressure on the headlamp lens to secure place before removing the retainers. You can release the headlamp retainers by lifting them up and then step by step extract the mounting tabs from their location points on the upper fascia support combined with fender reinforcement. Unplug the Headlight electrical connector before extracting the Headlight unit from its place. You must first remove the rubber access covers installed behind the headlamp bulb/sockets with replacement functions in mind while observing the important halogen bulb caution. The counterclockwise rotation on the headlamp bulb/socket unlocks it before you pull the unit from the headlamp while disconnecting its electrical connector. To install the new headlamp bulb/socket connect the electrical connector first before putting the bulb/socket in the headlamp while rotating it clockwise until full seating occurs. Place the rubber access covers back then attach the electrical connector to the headlamp component. Use gentle pressure that pushes the lens of the headlamp as you insert the mounting tabs into the slots found between the upper fascia support and fender reinforcement. Press the retainers over the mounting tabs before securing them completely. Examine the headlamp for its proper seating position then verify the headlamp aim if new headlamps were installed and following maintenance operations disturbed any mounting brackets. Finally, close the hood.

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Headlamp Bulb

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43 Headlight Bulbs found

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Buick Back-Up Lamp Bulb
Part Number: 15199562
$3.73 MSRP: $6.66
You Save: $2.93 (44%)
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Product Specifications
- Other Name: Bulb, Daytime Running Lamp; Daytime Running Light Bulb; Car Bulbs; Run Lamp Bulb; Bulb; Bulb, Capsule/Headlamp/Fog Lamp; Standard Parts
- Replaces: 01999482, 1999482
Fits the following Buick Models:
- Regal | 2011-2017 | Base, CXL, GS, Premium, Sport Touring | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Hid Bulb
Part Number: 25911883
$133.31 MSRP: $239.11
You Save: $105.80 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb; Headlight Bulbs; Car Bulbs; Headlamp Bulb; Igniter
- Replaced by: 19369522
Fits the following Buick Models:
- LaCrosse | 2010-2013 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick Turn Signal Bulb
Part Number: 13579204
$24.29 MSRP: $43.38
You Save: $19.09 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Bulb, Capsule/Headlamp/Fog Lamp; Turn Signal Bulbs; Headlight Bulbs; Car Bulbs; Headlamp Bulb; High Beam Bulb; Lower Beam Bulb
- Replaces: 20894761
Fits the following Buick Models:
- Envision | 2016-2019 | Base, Essence, Preferred, Premium, Premium II | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
- LaCrosse | 2014-2016 | Base, Leather, Premium, Sport Touring | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Regal | 2014-2017 | Base, GS, Premium, Sport Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Bulb & Socket
Part Number: 19257054
$13.83 MSRP: $24.72
You Save: $10.89 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Bulb Assembly, Headlamp (Low Beam); Fog Light Bulbs; Headlight Bulbs; Car Bulbs; Headlight; Headlamp Bulb; Composite Assembly; Fog Lamp Bulb; Lower Beam Bulb; Bulb; Bulb, Capsule/Headlamp/Fog Lamp
- Replaces: 09441733, 12450177, 01999366, 9441733, 01999357, 1999366, 1999357
Fits the following Buick Models:
- Century | 1987-2005 | Custom, Estate Wagon, Limited, Special, Special Edition | 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS
- Electra | 1989, 1987 | Estate Wagon | 8 Cyl 5.0 L GAS
- LeSabre | 1987-2005 | Base, Custom, Limited, T-Type | 6 Cyl 3.8 L GAS
- Lucerne | 2006-2011 | CX, CXL, CXL Special Edition, CXS, Super | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
- Park Avenue | 1991-2005 | Base, Ultra | 6 Cyl 3.8 L GAS
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Reatta | 1988-1991 | Base | 6 Cyl 3.8 L GAS
- Regal | 1988-2004 | 25th Anniversary Edition, Custom, Gran Sport, GS, GSE, Limited, LS, LSE, Olympic Gold Edition | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
- Rendezvous | 2002-2007 | CX, CX Plus, CXL, CXL Plus, Ultra | 6 Cyl 3.4 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.6 L GAS
- Riviera | 1995-1999, 1988-1993 | Base, Luxury, T-Type | 6 Cyl 3.8 L GAS
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Buick Hid Bulb
Part Number: 19351924
$162.28 MSRP: $291.09
You Save: $128.81 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb, Capsule/Headlamp/Fog Lamp; Car Bulbs
- Replaces: 19351942, 19369521
Fits the following Buick Models:
- Enclave | 2008-2012 | Base, CX, CXL | 6 Cyl 3.6 L GAS
- Regal | 2012-2013 | Base, GS, Premium | 4 Cyl 2.0 L FLEX, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Headlamp Bulb
Part Number: 13500813
$13.25 MSRP: $23.69
You Save: $10.44 (45%)
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Product Specifications
- Other Name: Bulb, Headlamp *Trade W21/5Wull; Daytime Running Light Bulb; Fog Light Bulbs; Headlight Bulbs; Car Bulbs; Exterior Bulbs; Fog Lamp Bulb; Lower Beam Bulb; Run Lamp Bulb; Bulb; Bulb, Capsule/Headlamp/Fog Lamp; Bulb, Bulb
Fits the following Buick Models:
- LaCrosse | 2014-2016 | Base, Leather, Premium, Sport Touring | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Regal | 2014-2017 | Base, GS, Premium, Sport Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Hid Bulb
Part Number: 19369521
$162.28 MSRP: $291.09
You Save: $128.81 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb, Capsule/Headlamp/Fog Lamp; Car Bulbs; Headlamp Bulb; Lower Beam Bulb
- Replaced by: 19351924
Fits the following Buick Models:
- Enclave | 2008-2012 | Base, CX, CXL | 6 Cyl 3.6 L GAS
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Buick Turn Signal Bulb
Part Number: 13579188
$7.45 MSRP: $13.30
You Save: $5.85 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb-Parking & Turn Signal Lamp; Turn Signal Bulbs; Car Bulbs; Tail Lamp Bulb; Side Marker; Signal; Parking; Exterior; Stoplamp; Turn Signal; Standard Parts.
- Replaces: 13500817, 13579187, 13579189
Fits the following Buick Models:
- Cascada | 2016-2019 | Base, Premium, Sport Touring | 4 Cyl 1.6 L GAS
- Enclave | 2013-2021 | Avenir, Base, Convenience, Essence, Leather, Preferred, Premium | 6 Cyl 3.6 L GAS
- Encore | 2013-2016 | Base, Convenience, Leather, Premium, Sport Touring | 4 Cyl 1.4 L GAS
- Envision | 2016-2020 | Base, Essence, Preferred, Premium, Premium II | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
- LaCrosse | 2014-2016 | Base, Leather, Premium, Sport Touring | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Verano | 2012-2017 | Base, Convenience, Leather, Premium, Sport Touring, Turbo | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Buick Headlamp Bulb, Green Line
Part Number: 13586977
$14.35 MSRP: $26.94
You Save: $12.59 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Bulb, Capsule/Headlamp/Fog Lamp; Fog Light Bulbs; Headlight Bulbs; Car Bulbs; High Beam Bulb; Parking Lamp Bulb; Fog Lamp Bulb; Lower Beam Bulb; Bulb
- Replaced by: 13503417
Fits the following Buick Models:
- Cascada | 2016-2019 | Base, Premium, Sport Touring | 4 Cyl 1.6 L GAS
- Enclave | 2008-2017 | Base, Convenience, CX, CXL, Leather, Premium | 6 Cyl 3.6 L GAS
- Encore | 2013-2022 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
- Encore GX | 2020-2023 | Essence, Preferred, Select | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
- Envision | 2016-2020 | Base, Essence, Preferred, Premium, Premium II | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
- LaCrosse | 2017-2019, 2005-2013 | Avenir, Base, Convenience, CX, CXL, CXS, Essence, Leather, Preferred, Premium, Sport Touring, Super, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.3 L GAS
- Lucerne | 2006-2011 | CX, CXL, CXL Special Edition, CXS, Super | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Regal | 2011-2017 | Base, CXL, GS, Premium, Sport Touring | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Terraza | 2005-2007 | CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Headlamp Bulb
Part Number: 13503384
$20.19 MSRP: $35.43
You Save: $15.24 (44%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Bulb Assembly-Headlamp; Headlight Bulbs; Car Bulbs; High Beam Bulb; Bulb, Capsule/Headlamp/Fog Lamp
- Replaces: 15825994
Fits the following Buick Models:
- Encore | 2017 | Base, Essence, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Headlamp Bulb
Part Number: 84624411
$18.28 MSRP: $32.67
You Save: $14.39 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb, Capsule/Headlamp/Fog Lamp; High Beam Bulb
- Replaces: 13503385
Fits the following Buick Models:
- Encore GX | 2020-2023 | Essence, Preferred, Select | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
- LaCrosse | 2010-2013 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Verano | 2012-2017 | Base, Convenience, Leather, Premium, Sport Touring, Turbo | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Buick Hid Bulb
Part Number: 93175452
$34.30 MSRP: $64.43
You Save: $30.13 (47%)
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Product Specifications
- Other Name: Bulb, Headlamp (Low Beam); Headlight Bulbs; Car Bulbs; Headlamp Bulb
Fits the following Buick Models:
- Regal | 2011 | CXL | 4 Cyl 2.0 L FLEX, 4 Cyl 2.4 L GAS
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Buick Headlamp Bulb
Part Number: 13503426
$5.33 MSRP: $9.53
You Save: $4.20 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb Assembly-Headlamp; Headlight Bulbs; Car Bulbs; Bulb, Capsule/Headlamp/Fog Lamp
Fits the following Buick Models:
- Regal Sportback | 2018 | Base, Essence, GS, Preferred, Preferred II | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS
- Regal TourX | 2018 | Base, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Bulb & Socket
Part Number: 19257055
$5.69 MSRP: $10.19
You Save: $4.50 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb Assembly, Headlamp; Headlight Bulbs; Car Bulbs; Headlight; Headlamp Bulb; Composite Headlamp; Composite Assembly; Bulb; Bulb, Capsule/Headlamp/Fog Lamp
- Replaces: 09441731, 9441731
Fits the following Buick Models:
- Commercial Chassis | 1991-1996 | Base | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- Electra | 1987-1990 | Limited, Park Avenue, Park Avenue Ultra, T-Type | 6 Cyl 3.8 L GAS
- Regal | 1986-1987 | Base, GNX, Grand National, Limited, T-Type | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Roadmaster | 1991-1996 | Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited, Limited Collector's Edition | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- Skylark | 1992-1998 | Custom, Gran Sport, Limited, Olympic Gold Edition | 4 Cyl 2.3 L GAS, 4 Cyl 2.4 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS
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Buick Turn Signal Bulb
Part Number: 20998089
$4.98 MSRP: $8.92
You Save: $3.94 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Bulb-Stop & Tail & Turn Signal Lamp; Daytime Running Light; Back Up Light; Parking Light; Turn Signal; Tail Light Bulbs.; Tail Lamp Bulb; Backup, Stop, Signal, and Run Lamp Bulbs; Standard Parts.
- Replaces: 13502322
Fits the following Buick Models:
- Enclave | 2008-2012 | Base, CX, CXL | 6 Cyl 3.6 L GAS
- LaCrosse | 2010-2013 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Regal | 2011-2013 | Base, CXL, GS, Premium | 4 Cyl 2.0 L FLEX, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Tail Lamp Bulb
Part Number: 13504291
$7.15 MSRP: $12.76
You Save: $5.61 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Bulb, Bulb; Parking Light Bulb; Turn Signal Bulbs; Car Bulbs; Signal Lamp Bulb; Exterior Bulbs; Stoplamp Bulb
- Replaced by: 13591404
Fits the following Buick Models:
- Enclave | 2013-2016 | Base, Convenience, Leather, Premium | 6 Cyl 3.6 L GAS
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Buick Headlamp Bulb
Part Number: 15094219
$29.52 MSRP: $55.41
You Save: $25.89 (47%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Bulb, Headlamp (High Beam); Car Bulbs; High Beam Bulb; Bulb, Capsule/Headlamp/Fog Lamp
- Replaces: 25770739
Fits the following Buick Models:
- LeSabre | 2004-2005 | Custom, Limited | 6 Cyl 3.8 L GAS
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Buick Turn Signal Bulb
Part Number: 13500809
$4.96 MSRP: $8.86
You Save: $3.90 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Bulb Assembly-Headlamp; Daytime Running Light Bulb; Turn Signal Bulbs; Car Bulbs; Signal Lamp Bulb; Run Lamp Bulb; Bulb, Capsule/Headlamp/Fog Lamp; Bulb, Turn Signal
Fits the following Buick Models:
- Lucerne | 2011 | CX, CXL, Super | 6 Cyl 3.9 L FLEX, 8 Cyl 4.6 L GAS
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Buick Headlamp Bulb
Part Number: 13586976
$11.66 MSRP: $20.82
You Save: $9.16 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bulb, Capsule/Headlamp/Fog Lamp; Car Bulbs; High Beam Bulb
- Replaces: 13503427
Fits the following Buick Models:
- Cascada | 2016-2019 | Base, Premium, Sport Touring | 4 Cyl 1.6 L GAS
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Buick Headlamp Bulb
Part Number: 16502681
Product Specifications
- Other Name: Bulb, Headlamp (High Beam); Headlight Bulbs; Car Bulbs; Headlight; Sealed Beam; Capsule; Seal Beam, Capsule/Headlamp/Fog Lamp; Bulb, Capsule/Headlamp/Fog Lamp
Fits the following Buick Models:
- Century | 1986-1988 | Custom, Estate Wagon, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.8 L GAS
- Riviera | 1986-1987 | Luxury, T-Type | 6 Cyl 3.8 L GAS
- Skyhawk | 1984-1989 | Custom, Limited, SE, Sport, T-Type | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Buick Headlight Bulb Parts Questions & Experts Answers

Headlamp Bulb, Green Line
13586977
Q: How to Replace the Headlight Bulb on Buick Rainier?
A: The procedure to replace Headlight bulbs on envoy or rainier starts with turning off the lamp switch and waiting for bulb temperature reduction to minimize possible glass shattering. Eye protection must be worn at all times while you handle the bulb through its base because touching glass is forbidden and you need to stay away from dirt and wetness. Moist or touched bulbs require cleaning with alcohol or suitable degreaser before they must be properly dried thoroughly. Open the hood then detach both the headlamp and its associated access cover that is situated behind the lamp unit. First disconnect the electrical connector from its socket and then turn the bulb and socket detachable part counterclockwise to extract them from the housing. Installation of new bulbs requires using a high beam bulb with a black socket and a low beam bulb with a socket having gray tip and gray base. The electrical connector should first be inserted in the socket before setting up the bulb and socket and turning them clockwise until the locking tabs click into place. Complete the procedure by putting back the access cover together with the headlamp. The proper disposal of bulbs requires appropriate methods and all halogen bulbs need to remain out of children's access area.
Turn Signal Bulb, Amber; Clear
15828918
Q: How to replace the front headlight bulb on Buick Century?
A: Begin by opening the hood then carefully use light pressure on the lens of the headlamp before moving the retainers. Pull up the headlamp retainers to unlock them and these retainers can then be taken off. Remove the headlamp mounting tabs from their places in the upper fascia support and fender reinforcement slots and untangle the electrical connector from the headlamp before pulling out the lamp unit. The installation process begins by taking off the rubber access cover(s) from behind the headlamp bulb(s) which require replacement according to the halogen bulb caution. To disconnect the bulb use a counterclockwise motion on its base before removing the bulb while also detaching its electrical connector. To install the new headlamp bulb connect its electrical connector before putting it into place while securing with bulb base clockwise rotation. Place back the rubber access covers before attaching the electrical connector to the headlamp. Place the mounting tabs of the headlamp into the slots present on the upper fascia support and fender reinforcement while carefully applying light pressure to the lens at installation time of the retainers. Assess the fit of the headlamp while you press down the retainers onto their corresponding mounting tabs until they become fully seated. Close the hood after the inspection and test the headlamp aim especially in cases where a new headlamp installation occurred or front-end service work could have affected the mounting brackets.
Bulb & Socket
19257054
Q: How to replace the front headlight bulb on Buick Regal?
A: After opening the hood users should use light pressure on the headlamp lens to secure place before removing the retainers. You can release the headlamp retainers by lifting them up and then step by step extract the mounting tabs from their location points on the upper fascia support combined with fender reinforcement. Unplug the Headlight electrical connector before extracting the Headlight unit from its place. You must first remove the rubber access covers installed behind the headlamp bulb/sockets with replacement functions in mind while observing the important halogen bulb caution. The counterclockwise rotation on the headlamp bulb/socket unlocks it before you pull the unit from the headlamp while disconnecting its electrical connector. To install the new headlamp bulb/socket connect the electrical connector first before putting the bulb/socket in the headlamp while rotating it clockwise until full seating occurs. Place the rubber access covers back then attach the electrical connector to the headlamp component. Use gentle pressure that pushes the lens of the headlamp as you insert the mounting tabs into the slots found between the upper fascia support and fender reinforcement. Press the retainers over the mounting tabs before securing them completely. Examine the headlamp for its proper seating position then verify the headlamp aim if new headlamps were installed and following maintenance operations disturbed any mounting brackets. Finally, close the hood.