How to replace the intake manifold on LH6, LMG, LY5, and L76 engines on GMC Sierra 1500?

The replacement process for lh6, lmg, ly5 and l76 intake manifolds begins by removing the air cleaner outlet duct followed by removal of the generator. The engine harness retainer nut needs detachment followed by removal of the retainer from the stud and locator. First disconnect power cables from the evap canister purge solenoid followed by the MAP Sensor and ignition coil harness and the left and right side fuel injectors and throttle actuator and ect sensor. Secure all engine harness branches to the side and move them away from the work area. You should first move the Brake Booster Vacuum Hose aside and disconnect the evap canister purge tube and fuel feed line quick connect fittings when needed. After removing the Intake Manifold you should discard the old gaskets and use adhesive foil to protect the cylinder head openings from entry of debris. To replace the Intake Manifold pull off first the Brake Booster Vacuum Hose nipple followed by the upper Intake Manifold cover and MAP Sensor and Throttle Body but discard the Throttle Body Gasket along with the Fuel Injector lower o-ring seals. Place new Intake Manifold gaskets while installing the Intake Manifold and apply sequence torque values to all bolts during installation. Reinstall all three components - the Brake Booster Vacuum Hose and fuel feed line and evap canister purge tube. Affix all engine harness connectors as well as retainer and clips while making sure each attachment point is secured. Reinstall the generator as well as the air cleaner outlet duct into position.

OEM GMC Sierra 1500 Intake Manifold

Engine Intake Manifold

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19 Intake Manifolds found

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GMC Sierra 1500 Intake Manifold Part Number: 12639087
$153.81 MSRP: $261.86
You Save: $108.05 (42%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Engine Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2023 GMC Sierra 1500 | AT4, AT4X, Denali, Denali Ultimate, SLT | 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12630859
$171.48 MSRP: $291.94
You Save: $120.46 (42%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2021 GMC Sierra 1500 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12623417
$245.09 MSRP: $420.93
You Save: $175.84 (42%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Engine Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2023 GMC Sierra 1500 | AT4, Base, Denali, Elevation, Pro, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12620308
$216.35 MSRP: $351.12
You Save: $134.77 (39%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Replaces: 12597598
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009 GMC Sierra 1500 | Hybrid, SL, SLE, SLT, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV)
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GMC Sierra 1500 Intake Manifold Part Number: 40009057
$126.75 MSRP: $215.75
You Save: $89.00 (42%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold
- Replaced by: 40009521
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Sierra 1500 | AT4, AT4X, Denali, Denali Ultimate, Elevation, SLE, SLT
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GMC Sierra 1500 Intake Manifold Part Number: 12698870
$47.51 MSRP: $74.41
You Save: $26.90 (37%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold
- Replaces: 12694867
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2023 GMC Sierra 1500 | Base, Elevation, Pro, SLE | 4 Cyl 2.7 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12698169
$235.99 MSRP: $371.30
You Save: $135.31 (37%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Position: Lower
- Replaces: 12595828
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2013 GMC Sierra 1500 | WT | 6 Cyl 4.3 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12654946
$217.06 MSRP: $344.62
You Save: $127.56 (38%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2018 GMC Sierra 1500 | Base, Denali, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12638038
$224.44 MSRP: $382.10
You Save: $157.66 (42%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2013 GMC Sierra 1500 | 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)
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GMC Sierra 1500 Intake Manifold Part Number: 12597600
$161.11 MSRP: $388.46
You Save: $227.35 (59%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2013 GMC Sierra 1500 | Denali, SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX
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GMC Sierra 1500 Intake Manifold Part Number: 12595827
$87.57 MSRP: $144.26
You Save: $56.69 (40%)
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Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2013 GMC Sierra 1500 | WT | 6 Cyl 4.3 L GAS
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GMC Sierra 1500 Manifold Part Number: 17113697
Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Intake Manifold
- Replaces: 17113546
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2002 GMC Sierra 1500 | Base, C3, Denali, HT, SL, SLE, SLT, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 17113542
Product Specifications
- Other Name: Manifold Kit, Engine Fuel Intake Manifold; Manifold
- Position: Upper
- Replaces: 17113213
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2006 GMC Sierra 1500 | Base, HT, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12580678
$231.11 MSRP: $363.63
You Save: $132.52 (37%)
Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Sierra 1500 | Denali | 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 12580420
$187.90 MSRP: $295.65
You Save: $107.75 (37%)
Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Sierra 1500 | SL, SLE, SLT, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 89017365
Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Replaced by: 19418185
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 GMC Sierra 1500 | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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GMC Sierra 1500 Intake Manifold, Lower Part Number: 88894294
Product Specifications
- Other Name: Manifold Kit, Lower Intake; Manifold; Manifold Kit, Engine Fuel Intake Manifold
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 GMC Sierra 1500 | Base, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS
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GMC Sierra 1500 Intake Manifold Part Number: 19418186
Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold; Manifold
- Replaces: 89017363
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 GMC Sierra 1500 | Base, Denali, Hybrid, SL, SLE, SLT, WT | 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
View related parts
GMC Sierra 1500 Intake Manifold, Lower Part Number: 17113342
Product Specifications
- Other Name: Manifold Kit, Lower Intake; Manifold; Manifold Kit, Engine Fuel Intake Manifold
- Position: Lower
- Replaces: 17113212
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2002 GMC Sierra 1500 | Base, HT, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS

GMC Sierra 1500 Intake Manifold

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GMC Sierra 1500 Intake Manifold Parts and Q&A

Intake Manifold
12620308
Q: How to replace the intake manifold on LH6, LMG, LY5, and L76 engines on GMC Sierra 1500?
A:
The replacement process for lh6, lmg, ly5 and l76 intake manifolds begins by removing the air cleaner outlet duct followed by removal of the generator. The engine harness retainer nut needs detachment followed by removal of the retainer from the stud and locator. First disconnect power cables from the evap canister purge solenoid followed by the MAP Sensor and ignition coil harness and the left and right side Fuel Injectors and throttle actuator and ect sensor. Secure all engine harness branches to the side and move them away from the work area. You should first move the Brake Booster Vacuum Hose aside and disconnect the evap canister purge tube and fuel feed line quick connect fittings when needed. After removing the Intake Manifold you should discard the old gaskets and use adhesive foil to protect the cylinder head openings from entry of debris. To replace the Intake Manifold pull off first the Brake Booster Vacuum Hose nipple followed by the upper Intake Manifold cover and MAP Sensor and Throttle Body but discard the Throttle Body Gasket along with the Fuel Injector lower o-ring seals. Place new Intake Manifold gaskets while installing the Intake Manifold and apply sequence torque values to all bolts during installation. Reinstall all three components - the Brake Booster Vacuum Hose and fuel feed line and evap canister purge tube. Affix all engine harness connectors as well as retainer and clips while making sure each attachment point is secured. Reinstall the generator as well as the air cleaner outlet duct into position.