How to replace the Fuel Injection Fuel Rail Assembly for Bank 1 (LLT) (3.6L) on GMC Acadia?

The first step to replace the fuel injection Fuel Rail assembly for bank 1 (LLT) (3.6L) requires using ch-48027 or without it to relieve fuel system pressure before beginning the work. The first step includes removal of the fuel pipe shield followed by removing the Intake Manifold. First you should detach the high pressure fuel pipe then throw it away alongside the Fuel Rail crossover pipe. Start by extracting the foam insulation from between the fuel rails before unconnecting the Fuel Pressure Sensor wiring link and severing the harness tie straps. The procedure to remove the Fuel Rail requires taking off its mounting bolts together with the Fuel Pressure Sensor while discarding all direct Fuel Injector hold down clamps since these injectors need rebuilding when separated from their Fuel Rail position or cylinder head placement. Rebuilding fuel injectors should be performed after removing the Fuel Rail. Rebuilt direct fuel injectors must enter the cylinder heads while new direct injector hold down clamps need installation. A new Fuel Rail requires lubrication of its injector cups with gm p/n 12345610 (Canadian P/N 9931930) silicon-free engine oil or equivalent before proper placement. Begin installation by securing the outer Fuel Rail bolts followed by the inner bolts while finishing the installation by hand tightening them. The bank 1 Fuel Rail bolts should receive initial torque of 12 nm (106 lb in) and final torque should be 23 nm (17 lb ft). The installation process starts with introducing a new high pressure fuel pipe along with a new Fuel Rail crossover pipe. Mount and connect the high pressure fuel sensor while joining the Fuel Injector wiring harness electrical connector to the fuel injectors and Fuel Rail and Fuel Pressure Sensor. Check for fuel leaks during an ignition turn-on and turn-off procedure. The last step involves both reinstallation of the foam insulator along with the Intake Manifold along with the fuel pipe shield along with the low side fuel pressure service port cap and the fuel tank cap.

How to replace the fuel rail assembly on GMC Sierra 1500?

You must detach the air cleaner outlet duct before starting to replace the Fuel Rail assembly. Use ch-48027 to relieve fuel system pressure or follow the applicable procedure. Start by detaching the engine wiring harness bracket nut before disconnecting the external electrical connectors from the evap purge solenoid, generator and MAP Sensor, evap purge solenoid, generator, ignition coil main connector, electronic throttle control. Start by marking the Fuel Injector electrical connectors for reassembly but disconnecting them from their location. Remove the cpa retainers to disconnect other connectors. Detach the engine wiring harness clips alongside the negative Battery Cable from the right cylinder head. The technician disconnects the quick connect fitting of the chassis fuel feed pipe while also taking off the evap tube quick connect fittings at both the intake manifold and the evap canister purge solenoid. You should first remove the retainer locking the evap canister purge solenoid to the Fuel Rail before removing the Fuel Rail bolts and carefully moving the entire Fuel Rail assembly to protect its injector electrical connector terminals together with spray tips. After cleaning the Fuel Rail users must extract the Fuel Injector retainers and fuel injectors with disposal of original upper and lower o-ring seals (2 and 4). The installation begins with engine oil lubrication of new o-ring seals followed by placement on the injectors before inserting them into the Fuel Rail. Handle the Fuel Rail retainers first before arranging the Fuel Rail on the intake manifold and pushing it to achieve full seating. First install the Fuel Rail bolts while tightening them to 10 nm (89 lb in) then reconnect the evap tube and purge solenoid and the chassis fuel feed pipe by installing the quick connect fitting. Gather the engine wiring harness branches and reinstall the pcv hose before using the clips for connection. The engine wiring harness bracket nut requires installation at 5 nm to 44 lb in torque. At this time, connect the negative Battery Cable while ensuring all electrical connections are correctly in place. The process ends with turning on the ignition to verify for leaks before installing the air cleaner outlet duct.

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77 Fuel Rails found

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GMC Fuel Rail Part Number: 12678991
$222.60 MSRP: $452.12
You Save: $229.52 (51%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaced by: 12686810
Fits the following GMC Models:
- Sierra 2500 HD | 2017-2019 | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2017-2019 | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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GMC Fuel Rail Part Number: 97361353
$336.68 MSRP: $683.83
You Save: $347.15 (51%)
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Product Specifications
- Other Name: Rail, Fuel Injection
Fits the following GMC Models:
- Savana 2500 | 2006-2009 | Base | 8 Cyl 6.6 L DIESEL
- Savana 3500 | 2006-2009 | Base | 8 Cyl 6.6 L DIESEL
- Sierra 1500 | 2006 | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 Classic | 2007 | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2006 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 1500 HD Classic | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2006-2010 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2006 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Fuel Rail Part Number: 12623365
$163.31 MSRP: $295.58
You Save: $132.27 (45%)
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Product Specifications
- Other Name: Rail, Fuel Injection
Fits the following GMC Models:
- Acadia | 2009-2016 | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
- Acadia Limited | 2017 | Base | 6 Cyl 3.6 L GAS
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GMC Fuel Rail Part Number: 12621668
$198.77 MSRP: $359.76
You Save: $160.99 (45%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaced by: 12660709
Fits the following GMC Models:
- Canyon | 2010-2012 | SLE, SLT | 8 Cyl 5.3 L GAS
- Savana 1500 | 2010-2014 | Base, LS, LT | 8 Cyl 5.3 L FLEX
- Savana 2500 | 2010-2011 | Base | 8 Cyl 4.8 L FLEX
- Savana 3500 | 2010-2011 | Base | 8 Cyl 4.8 L FLEX
- Sierra 1500 | 2010-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 8 Cyl 4.8 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.2 L FLEX
- Sierra 2500 HD | 2010 | SLE, SLT, WT | 8 Cyl 6.0 L FLEX
- Sierra 3500 HD | 2010 | SLE, SLT, WT | 8 Cyl 6.0 L FLEX
- Yukon | 2010-2014 | Denali Hybrid, Hybrid, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV)
- Yukon XL 1500 | 2010-2014 | SLE, SLT | 8 Cyl 5.3 L FLEX
- Yukon XL 2500 | 2010-2013 | SLE, SLT | 8 Cyl 6.0 L FLEX
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GMC Fuel Rail Part Number: 12654644
$251.84 MSRP: $455.82
You Save: $203.98 (45%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12627090
Fits the following GMC Models:
- Acadia | 2017-2021 | SL, SLE, SLT | 4 Cyl 2.5 L GAS
- Canyon | 2015-2022 | Base, Elevation, Elevation Standard, SL, SLE, SLT | 4 Cyl 2.5 L GAS
- Terrain | 2018-2020 | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Fuel Rail Part Number: 12621663
$236.37 MSRP: $427.82
You Save: $191.45 (45%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12621561
Fits the following GMC Models:
- Yukon XL 1500 | 2010-2014 | Denali, SLT | 8 Cyl 6.2 L FLEX
- Yukon XL 2500 | 2010-2013 | SLE, SLT | 8 Cyl 6.0 L FLEX
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GMC Fuel Rail Part Number: 55510921
$457.80 MSRP: $828.60
You Save: $370.80 (45%)
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Product Specifications
- Other Name: Rail Assembly-High Pressure Diesel Fuel Injection; Rail, Fuel Injection
- Replaces: 55484516
Fits the following GMC Models:
- Savana 2500 | 2017-2022 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
- Savana 3500 | 2017-2022 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
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GMC Fuel Rail Part Number: 12733958
$104.33 MSRP: $188.84
You Save: $84.51 (45%)
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Product Specifications
- Other Name: Rail, Fuel Injection
Fits the following GMC Models:
- Canyon | 2023 | AT4, AT4X, Denali, Elevation | 4 Cyl 2.7 L GAS
- Sierra 1500 | 2023 | Elevation, Pro, SLE | 4 Cyl 2.7 L GAS
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GMC Fuel Rail Part Number: 25205429
$110.28 MSRP: $199.60
You Save: $89.32 (45%)
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Product Specifications
- Other Name: Rail Assembly-Direct Fuel Injection Fuel; Rail, Fuel Injection
Fits the following GMC Models:
- Terrain | 2023 | AT4, Denali, SLE, SLT | 4 Cyl 1.5 L GAS
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GMC Fuel Rail Part Number: 12701658
$178.19 MSRP: $329.68
You Save: $151.49 (46%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12668188
Fits the following GMC Models:
- Canyon | 2015-2016 | Base, SLE, SLT | 6 Cyl 3.6 L GAS
- Terrain | 2010-2017 | 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 Fuel Rail Part Number: 12688001
$94.11 MSRP: $176.74
You Save: $82.63 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaced by: 12729341
Fits the following GMC Models:
- Sierra 1500 | 2019-2022 | Base, Elevation, Pro, SLE | 4 Cyl 2.7 L GAS
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GMC Fuel Rail Part Number: 12729341
$94.11 MSRP: $176.74
You Save: $82.63 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12688001
Fits the following GMC Models:
- Canyon | 2023 | AT4, AT4X, Denali, Elevation | 4 Cyl 2.7 L GAS
- Sierra 1500 | 2019-2022 | Base, Elevation, Pro, SLE | 4 Cyl 2.7 L GAS
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GMC Fuel Rail Part Number: 12709433
$120.32 MSRP: $225.96
You Save: $105.64 (47%)
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12671078
Fits the following GMC Models:
- Acadia | 2017-2023 | AT4, Denali, SLE, SLT | 6 Cyl 3.6 L GAS
- Canyon | 2017-2022 | All Terrain, AT4, Base, Denali, Elevation, Elevation Standard, SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Fuel Rail Part Number: 89018110
$188.56 MSRP: $341.28
You Save: $152.72 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Rail Kit, Fuel Injection
- Replaced by: 12621662
Fits the following GMC Models:
- Savana 1500 | 2008-2009 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Yukon | 2007-2009 | SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Yukon XL 1500 | 2007-2009 | SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 6.0 L GAS
- Yukon XL 2500 | 2007-2009 | SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Fuel Rail Part Number: 12621665
$184.53 MSRP: $374.78
You Save: $190.25 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaced by: 12660710
Fits the following GMC Models:
- Sierra 1500 | 2007-2009 | Denali, SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
- Sierra 2500 HD | 2007-2010 | SLE, SLT, WT | 8 Cyl 6.0 L GAS
- Sierra 3500 HD | 2007-2014 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Yukon XL 2500 | 2010-2013 | SLE, SLT | 8 Cyl 6.0 L FLEX
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GMC Fuel Rail Part Number: 40009114
$158.19 MSRP: $286.32
You Save: $128.13 (45%)
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Product Specifications
- Other Name: Rail Assembly-High Pressure Diesel Fuel Injection; Rail, Fuel Injection
- Replaced by: 40009602
Fits the following GMC Models:
- Sierra 1500 | 2023 | AT4, Denali, Denali Ultimate, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon | 2023 | Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon XL | 2023 | Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL
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GMC Fuel Rail Part Number: 55505909
$207.53 MSRP: $421.52
You Save: $213.99 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail Assembly-High Pressure Diesel Fuel Injection; Rail, Fuel Injection
Fits the following GMC Models:
- Sierra 1500 | 2020-2022 | AT4, AT4X, Denali, Denali Ultimate, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Sierra 1500 Limited | 2022 | AT4, Denali, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon | 2021-2022 | Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon XL | 2021-2022 | Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL
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GMC Fuel Rail Part Number: 12707885
$102.62 MSRP: $192.72
You Save: $90.10 (47%)
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Product Specifications
- Other Name: Rail-Fuel Injection Fuel *Must Use Together With
- Replaced by: 12729463
Fits the following GMC Models:
- Savana 2500 | 2018-2023 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
- Savana 3500 | 2018-2023 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
- Sierra 1500 | 2014-2021 | Base, SLE | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
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GMC Fuel Rail Part Number: 12719353
$127.13 MSRP: $229.32
You Save: $102.19 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
Fits the following GMC Models:
- Sierra 1500 | 2022-2023 | AT4, AT4X, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon | 2022-2023 | AT4, Denali, Denali Ultimate, SLE, SLT | 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon XL | 2022-2023 | AT4, Denali, Denali Ultimate, SLE, SLT | 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Fuel Rail Part Number: 12706269
$124.22 MSRP: $197.22
You Save: $73.00 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Rail, Fuel Injection
- Replaces: 12671079
Fits the following GMC Models:
- Acadia | 2017-2023 | AT4, Denali, SLE, SLT | 6 Cyl 3.6 L GAS
- Canyon | 2017-2022 | All Terrain, AT4, Base, Denali, Elevation, Elevation Standard, SLE, SLT | 6 Cyl 3.6 L GAS

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GMC Fuel Rail

Choose OEM Fuel Rail, 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 GMC'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 GMC Fuel Rail. You can shop at highly competitive prices and protect your budget. All our genuine GMC parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

GMC Fuel Rail ensures the smooth flow of gasoline at constant high pressure to provide fast clean engine response. GMC can be traced back to 1901 and has decades of experience in creating trucks and SUVs that sack off heavy cargo and rough terrain. Customers also have confidence in the brand since the frames do not twist, the powertrain engine is able to pull heavy trailers, and the cabin is quiet even with the bed stacked to the ceiling. GMC also stuffs surround vision, hitch guidance, and firm suspensions to ensure that drivers remain relaxed and in control on the busy highways or even on the muddy construction sites. The reliability test occurs prior to the opening of the showrooms, and such discipline maintains the values high. GMC drives the point of ability without overloading customers with boastful lingo and letting the tools talk on both the construction site and the commute to work. The Fuel Rail directs gasoline pumped to individual injectors and maintains the pressure the same to allow the Powertrain Control Module to adjust spray timing to provide cleaner burns and reduce emissions in each injection type among older throttle-body designs and modern direct delivery directly into the combustion chamber. Constructed of strong alloys that defy corrosion and vibration, the Fuel Rail endures the heating and cooling of the road and prevents road shock that keeps the full-size pickup pulling without hiccups on each mile. Its steady stream allows engines to generate steady torque, contributes to the efficiency requirement, and eliminates the drama of gibbers and glitches as power is demanded highly.

GMC Fuel Rail Parts and Q&A

Fuel Rail
12623365
Q: How to replace the Fuel Injection Fuel Rail Assembly for Bank 1 (LLT) (3.6L) on GMC Acadia?
A:
The first step to replace the fuel injection Fuel Rail assembly for bank 1 (LLT) (3.6L) requires using ch-48027 or without it to relieve fuel system pressure before beginning the work. The first step includes removal of the fuel pipe shield followed by removing the Intake Manifold. First you should detach the high pressure fuel pipe then throw it away alongside the Fuel Rail crossover pipe. Start by extracting the foam insulation from between the fuel rails before unconnecting the Fuel Pressure Sensor wiring link and severing the harness tie straps. The procedure to remove the Fuel Rail requires taking off its mounting bolts together with the Fuel Pressure Sensor while discarding all direct Fuel Injector hold down clamps since these injectors need rebuilding when separated from their Fuel Rail position or cylinder head placement. Rebuilding fuel injectors should be performed after removing the Fuel Rail. Rebuilt direct fuel injectors must enter the cylinder heads while new direct injector hold down clamps need installation. A new Fuel Rail requires lubrication of its injector cups with gm p/n 12345610 (Canadian P/N 9931930) silicon-free engine oil or equivalent before proper placement. Begin installation by securing the outer Fuel Rail bolts followed by the inner bolts while finishing the installation by hand tightening them. The bank 1 Fuel Rail bolts should receive initial torque of 12 nm (106 lb in) and final torque should be 23 nm (17 lb ft). The installation process starts with introducing a new high pressure fuel pipe along with a new Fuel Rail crossover pipe. Mount and connect the high pressure fuel sensor while joining the Fuel Injector wiring harness electrical connector to the fuel injectors and Fuel Rail and Fuel Pressure Sensor. Check for fuel leaks during an ignition turn-on and turn-off procedure. The last step involves both reinstallation of the foam insulator along with the Intake Manifold along with the fuel pipe shield along with the low side fuel pressure service port cap and the fuel tank cap.
Fuel Rail
12621662
Q: How to replace the fuel rail assembly on GMC Sierra 1500?
A:
You must detach the air cleaner outlet duct before starting to replace the Fuel Rail assembly. Use ch-48027 to relieve fuel system pressure or follow the applicable procedure. Start by detaching the engine wiring harness bracket nut before disconnecting the external electrical connectors from the evap purge solenoid, generator and MAP Sensor, evap purge solenoid, generator, ignition coil main connector, electronic throttle control. Start by marking the Fuel Injector electrical connectors for reassembly but disconnecting them from their location. Remove the cpa retainers to disconnect other connectors. Detach the engine wiring harness clips alongside the negative Battery Cable from the right cylinder head. The technician disconnects the quick connect fitting of the chassis fuel feed pipe while also taking off the evap tube quick connect fittings at both the intake manifold and the evap canister purge solenoid. You should first remove the retainer locking the evap canister purge solenoid to the Fuel Rail before removing the Fuel Rail bolts and carefully moving the entire Fuel Rail assembly to protect its injector electrical connector terminals together with spray tips. After cleaning the Fuel Rail users must extract the Fuel Injector retainers and fuel injectors with disposal of original upper and lower o-ring seals (2 and 4). The installation begins with engine oil lubrication of new o-ring seals followed by placement on the injectors before inserting them into the Fuel Rail. Handle the Fuel Rail retainers first before arranging the Fuel Rail on the intake manifold and pushing it to achieve full seating. First install the Fuel Rail bolts while tightening them to 10 nm (89 lb in) then reconnect the evap tube and purge solenoid and the chassis fuel feed pipe by installing the quick connect fitting. Gather the engine wiring harness branches and reinstall the pcv hose before using the clips for connection. The engine wiring harness bracket nut requires installation at 5 nm to 44 lb in torque. At this time, connect the negative Battery Cable while ensuring all electrical connections are correctly in place. The process ends with turning on the ignition to verify for leaks before installing the air cleaner outlet duct.