How to replace the direct fuel injector (LAF) on GMC Terrain?

A procedure to replace the direct Fuel Injector (LAF) should begin with relieving pressure from the high side fuel system. Before Fuel Injector replacement be sure to mark their installed positions because the injectors feature alignment components. The next task involves removal of the fuel injection Fuel Rail assembly. After removing Fuel Injector retainers you must clean and check both Fuel Rail along with fuel injectors. Implementation requires installation of new retainers and correct placement of removed injectors according to previous position notes before adding the fuel injection Fuel Rail assembly.

OEM GMC Terrain Fuel Injector

Gas Injector

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9 Fuel Injectors found

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GMC Terrain Injector Part Number: 12671568
$95.68 MSRP: $194.32
You Save: $98.64 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel
- Replaced by: 12662571
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 GMC Terrain | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Terrain Injector Part Number: 55577403
$105.79 MSRP: $214.86
You Save: $109.07 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
- Replaces: 12644767
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2022 GMC Terrain | AT4, Denali, SL, SLE, SLT | 4 Cyl 1.5 L GAS
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GMC Terrain Injector Part Number: 12634126
$110.57 MSRP: $224.58
You Save: $114.01 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2017 GMC Terrain | Denali, SLE, SLT | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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GMC Terrain Injector Part Number: 12633789
$98.37 MSRP: $199.78
You Save: $101.41 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 GMC Terrain | Denali, SL, SLE, SLT | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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GMC Terrain Injector Part Number: 12633784
$125.41 MSRP: $254.73
You Save: $129.32 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 GMC Terrain | Denali, SL, SLE, SLT | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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GMC Terrain Injector Part Number: 12629927
$85.02 MSRP: $172.68
You Save: $87.66 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Fuel Injectr; Injector, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2011 GMC Terrain | SLE, SLT | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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GMC Terrain Injector Part Number: 12608362
$94.78 MSRP: $192.52
You Save: $97.74 (51%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Fuel Injector; Injector, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010 GMC Terrain | SLE, SLT | 4 Cyl 2.4 L GAS
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GMC Terrain Injector Part Number: 55596708
$208.44 MSRP: $423.36
You Save: $214.92 (51%)
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Product Specifications
- Other Name: Injector, Fuel Injection; Fuel Injector
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 GMC Terrain | SLE, SLT | 4 Cyl 1.6 L DIESEL
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GMC Terrain Injector Part Number: 12709231
$48.75 MSRP: $87.06
You Save: $38.31 (44%)
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Product Specifications
- Other Name: Injector Assembly-Direct Fuel; Injector, Fuel Injection
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023 GMC Terrain | AT4, Denali, SLE, SLT | 4 Cyl 1.5 L GAS

GMC Terrain Fuel Injector

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The Fuel Injector in GMC Terrain is one of the important parts of the car's fuel system; it injects fuel directly into the cylinders of the engine in order to maintain the ideal carburetor mixture depending on the load of the non-stationary engines. This electronic machine, which is managed by the engine control unit, is used instead of the carburetor and provides additional adjustment of the engine qualities for a better performance. Damaged injectors result in poor idle, sudden variation of engine roughness, low power, and poor fuel efficiency, which damages catalytic converters and oxygen sensors. To avoid such problems, they have to replace the faulty fuel injectors as time would compel them to take that action. The Fuel Injector system in GMC Terrain vehicles is meant to provide required and correct fuel delivery for the efficient operation of the engine.

GMC Terrain Fuel Injector Parts Questions & Experts Answers

Injector
12629927
Q: How to replace the direct fuel injector (LAF) on GMC Terrain?
A:
A procedure to replace the direct Fuel Injector (LAF) should begin with relieving pressure from the high side fuel system. Before Fuel Injector replacement be sure to mark their installed positions because the injectors feature alignment components. The next task involves removal of the fuel injection Fuel Rail assembly. After removing Fuel Injector retainers you must clean and check both Fuel Rail along with fuel injectors. Implementation requires installation of new retainers and correct placement of removed injectors according to previous position notes before adding the fuel injection Fuel Rail assembly.