How to replace the fuel injectors in the LLT (3.6L) engine on Buick Enclave?

The replacement of fuel injectors in the llt (3.6L) engine requires the first step to be the relief of high side fuel system pressure. Normal operating position of injectors needs to be recorded before installing the unit. The technician needs to detach the fuel injection Fuel Rail assembly for both bank 1 and bank 2. The replacement process starts by discarding the three Fuel Injector retaining rings before removing the direct fuel injectors together with their harness components and unfastening the electrical connector. Extraction can be achieved with the j 2619-01 slide hammer featuring j-37281-a injector remover when applied to achieve equal injector removal. The upper o-ring seal and plastic spacer and retaining ring and isolator cup and teflon seal need to be discarded from the fuel injectors. Check the Fuel Rail injector bores through use of j-39313 adapter and en-47909 cleaning kit and clean them when in need. Place new o-ring seal from gm p/n 12345610 or equivalent oil on the fuel injectors before installing the upper o-ring seal together with plastic spacer, retaining ring, isolator cup and teflon seal. Place the en 48266-1 from the en-48266 installer to the injector tip without applying new teflon seal lubrication before pulling the new teflon seal down into the injector groove. Place the en 48266-2 onto the end of the injector tip before you use medium pressure to turn the tool to resize the teflon seal. Reattach the direct fuel injectors and their harness as an assembled component by connecting the electrical connector with precise alignment similar to the measurement taken when removing them. Install the fuel injection Fuel Rail assembly for bank 1 or bank 2 after the completion of the procedure.

How to service the fuel injector assembly on Buick Regal?

Service of the Fuel Injector assembly begins by repairing the Fuel Rail followed by separate removal of the Fuel Injector retaining clip and Fuel Injector both under careful conditions with protection of electrical connector pins and nozzles. The service of fuel injectors requires removing both o-rings from the upper section while ensuring that the electrical component stays free from all cleaners during this process. Follow the specific instructions when replacing fuel injectors by checking the assembly for part number identification together with manufacturing date and week code and production plant number stamp . New o-rings need engine oil application before installation requires first positioning the lower o-ring followed by the upper o-ring. Fasten the Fuel Injector onto the Fuel Rail using the retaining clip and restore the Fuel Rail. Replacements of Fuel Injector o-rings should always be done during servicing to prevent oil contamination from fuel leaks.

OEM Buick Fuel Injector

Gas Injector

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67 Fuel Injectors found

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Buick Injector Part Number: 55565970
$34.36 MSRP: $66.13
You Save: $31.77 (49%)
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Product Specifications
- Other Name: Injector, Fuel Injection; Gasoline Injector; Fuel Injector
Fits the following Buick Models:
- Encore | 2013-2020 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Injector Part Number: 12671568
$95.68 MSRP: $194.32
You Save: $98.64 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel
- Replaced by: 12662571
Fits the following Buick Models:
- Envision | 2016-2020 | Premium, Premium II | 4 Cyl 2.0 L GAS
- Regal | 2014-2017 | Base, GS, Premium, Sport Touring | 4 Cyl 2.0 L GAS
- Regal Sportback | 2018-2020 | Avenir, Base, Essence, Preferred, Preferred II | 4 Cyl 2.0 L GAS
- Regal TourX | 2018-2020 | Base, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Injector Part Number: 19244619
$62.96 MSRP: $196.46
You Save: $133.50 (68%)
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Product Specifications
- Other Name: Injector Kit, Fuel Injection; Fuel Injector; Injector, Fuel Injection
- Replaces: 17102747, 17111799, 17059402, 17122509, 17112632
Fits the following Buick Models:
- Century | 1992-1993, 1987-1989 | Custom, Estate Wagon, Limited, Special | 6 Cyl 2.8 L GAS, 6 Cyl 3.3 L GAS
- Regal | 1988-1993 | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS
- Skylark | 1992-1993 | Custom, Gran Sport, Limited | 6 Cyl 3.3 L GAS
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Buick Injector Part Number: 12669384
$111.75 MSRP: $200.44
You Save: $88.69 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector, Fuel Injection; Fuel Injector
- Replaces: 12638530, 12611545, 12632255
Fits the following Buick Models:
- Enclave | 2009-2011 | CX, CXL | 6 Cyl 3.6 L GAS
- LaCrosse | 2010-2012 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick Injector Part Number: 12597871
$52.59 MSRP: $106.82
You Save: $54.23 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Kit, Fuel Injection; Gasoline Injector; Fuel Injector
- Replaces: 12577869
Fits the following Buick Models:
- Lucerne | 2006-2011 | CXL, CXS, Super | 8 Cyl 4.6 L GAS
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Buick Injector Part Number: 12647362
$119.68 MSRP: $243.08
You Save: $123.40 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector
- Replaced by: 12692884
Fits the following Buick Models:
- LaCrosse | 2017-2018 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Injector Part Number: 12664120
$50.54 MSRP: $94.92
You Save: $44.38 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector
- Replaced by: 12706165
Fits the following Buick Models:
- Encore GX | 2020 | Essence, Preferred, Select | 3 Cyl 1.3 L GAS
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Buick Injector Part Number: 19421335
$70.83 MSRP: $143.86
You Save: $73.03 (51%)
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Product Specifications
- Other Name: Injector Assembly, Sequential Multiport Fuel; Fuel Injector; Injector, Fuel Injection
- Replaces: 12568155, 12586557
Fits the following Buick Models:
- Rendezvous | 2006-2007 | CX, CXL | 6 Cyl 3.5 L GAS
- Terraza | 2005-2006 | CX, CXL | 6 Cyl 3.5 L GAS
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Buick Injector Part Number: 17111771
$166.60 MSRP: $298.84
You Save: $132.24 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Fuel Injector
- Replaced by: 19110537
Fits the following Buick Models:
- Electra | 1989 | Estate Wagon | 8 Cyl 5.0 L GAS
- LeSabre | 1989-1990 | Estate Wagon | 8 Cyl 5.0 L GAS
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Buick Injector Part Number: 55490059
$87.34 MSRP: $177.40
You Save: $90.06 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
Fits the following Buick Models:
- Cascada | 2016-2019 | Base, Premium, Sport Touring | 4 Cyl 1.6 L GAS
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Buick Injector Part Number: 55515687
$57.87 MSRP: $108.68
You Save: $50.81 (47%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector
- Replaced by: 25207703
Fits the following Buick Models:
- Encore GX | 2020-2023 | Essence, Preferred, Select | 3 Cyl 1.2 L GAS
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Buick Injector Part Number: 19421334
$80.93 MSRP: $151.99
You Save: $71.06 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Injector Kit, Multiport Fuel; Fuel Injector; Injector Kit, Fuel Injection
- Replaces: 12576414
Fits the following Buick Models:
- LaCrosse | 2005-2009 | CX, CXL | 6 Cyl 3.8 L GAS
- Lucerne | 2006-2008 | CX, CXL | 6 Cyl 3.8 L GAS
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Buick Injector Part Number: 12571159
$47.04 MSRP: $95.54
You Save: $48.50 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector, Multiport Fuel; Gasoline Injector; Fuel Injector; Injector, Fuel Injection
Fits the following Buick Models:
- LaCrosse | 2005-2008 | CXS | 6 Cyl 3.6 L GAS
- Rendezvous | 2004-2005 | CXL, CXL Plus, Ultra | 6 Cyl 3.6 L GAS
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Buick Injector Part Number: 17111799
$62.96 MSRP: $196.46
You Save: $133.50 (68%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
- Replaced by: 19244619
Fits the following Buick Models:
- Century | 1987-1989 | Custom, Estate Wagon, Limited | 6 Cyl 2.8 L GAS
- Regal | 1988-1991 | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS
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Buick Injector Part Number: 17113698
$112.36 MSRP: $228.20
You Save: $115.84 (51%)
ADD TO CART
Product Specifications
- Other Name: Injector, Multiport Fuel; Fuel Injector; Injector, Fuel Injection
Fits the following Buick Models:
- Rainier | 2004 | CXL, CXL Plus | 8 Cyl 5.3 L GAS
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Buick Injector Part Number: 19244620
$121.79 MSRP: $228.72
You Save: $106.93 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Kit, Fuel Injection; Fuel Injector
- Replaces: 17113572, 17120262, 17107267
Fits the following Buick Models:
- Century | 1994-1999 | Custom, Limited, Special | 6 Cyl 3.1 L GAS
- Regal | 1994-1996 | Custom | 6 Cyl 3.1 L GAS
- Skylark | 1994-1998 | Custom, Gran Sport, Limited, Olympic Gold Edition | 6 Cyl 3.1 L GAS
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Buick Injector Part Number: 12698573
$80.09 MSRP: $150.40
You Save: $70.31 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
Fits the following Buick Models:
- Encore GX | 2021-2023 | Essence, Preferred, Select | 3 Cyl 1.3 L GAS
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Buick Injector Part Number: 55515113
$77.62 MSRP: $138.28
You Save: $60.66 (44%)
ADD TO CART
Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
- Replaced by: 12734337
Fits the following Buick Models:
- Envision | 2021 | Avenir, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Injector Part Number: 12589465
$101.67 MSRP: $181.56
You Save: $79.89 (44%)
Product Specifications
- Other Name: Injector Kit, Multiport Fuel; Injector Kit, Fuel Injection
Fits the following Buick Models:
- Rainier | 2006-2007 | CXL | 6 Cyl 4.2 L GAS
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Buick Injector Part Number: 19110537
$166.60 MSRP: $298.84
You Save: $132.24 (45%)
Product Specifications
- Other Name: Injector Assembly, Throttle Body Fuel; Fuel Injector; Injector Kit, Throttle Body/Carburetor
- Replaces: 17111771, 17111866, 17112401, 17112400
Fits the following Buick Models:
- Electra | 1989 | Estate Wagon | 8 Cyl 5.0 L GAS
- LeSabre | 1989-1990 | Estate Wagon | 8 Cyl 5.0 L GAS
- Roadmaster | 1991 | Estate Wagon | 8 Cyl 5.0 L GAS
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1-20 of 67 Results

Buick Fuel Injector

Choose OEM Fuel Injector, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Buick's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Buick Fuel Injector. You can shop at highly competitive prices and protect your budget. All our genuine Buick parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Buick Fuel Injector Parts and Q&A

Injector
12669384
Q: How to replace the fuel injectors in the LLT (3.6L) engine on Buick Enclave?
A:
The replacement of fuel injectors in the llt (3.6L) engine requires the first step to be the relief of high side fuel system pressure. Normal operating position of injectors needs to be recorded before installing the unit. The technician needs to detach the fuel injection Fuel Rail assembly for both bank 1 and bank 2. The replacement process starts by discarding the three Fuel Injector retaining rings before removing the direct fuel injectors together with their harness components and unfastening the electrical connector. Extraction can be achieved with the j 2619-01 slide hammer featuring j-37281-a injector remover when applied to achieve equal injector removal. The upper o-ring seal and plastic spacer and retaining ring and isolator cup and teflon seal need to be discarded from the fuel injectors. Check the Fuel Rail injector bores through use of j-39313 adapter and en-47909 cleaning kit and clean them when in need. Place new o-ring seal from gm p/n 12345610 or equivalent oil on the fuel injectors before installing the upper o-ring seal together with plastic spacer, retaining ring, isolator cup and teflon seal. Place the en 48266-1 from the en-48266 installer to the injector tip without applying new teflon seal lubrication before pulling the new teflon seal down into the injector groove. Place the en 48266-2 onto the end of the injector tip before you use medium pressure to turn the tool to resize the teflon seal. Reattach the direct fuel injectors and their harness as an assembled component by connecting the electrical connector with precise alignment similar to the measurement taken when removing them. Install the fuel injection Fuel Rail assembly for bank 1 or bank 2 after the completion of the procedure.
Fuel Injector Kit
24508208
Q: How to service the fuel injector assembly on Buick Regal?
A:
Service of the Fuel Injector assembly begins by repairing the Fuel Rail followed by separate removal of the Fuel Injector retaining clip and Fuel Injector both under careful conditions with protection of electrical connector pins and nozzles. The service of fuel injectors requires removing both o-rings from the upper section while ensuring that the electrical component stays free from all cleaners during this process. Follow the specific instructions when replacing fuel injectors by checking the assembly for part number identification together with manufacturing date and week code and production plant number stamp . New o-rings need engine oil application before installation requires first positioning the lower o-ring followed by the upper o-ring. Fasten the Fuel Injector onto the Fuel Rail using the retaining clip and restore the Fuel Rail. Replacements of Fuel Injector o-rings should always be done during servicing to prevent oil contamination from fuel leaks.