How to replace the ignition coil on GMC Sierra 1500?

In order to change the Ignition Coil, you need to take out the intake manifold sight shield. Remove the Ignition Coil wiring harness electrical connector and also remove the spark plug wire, leaving the spark plug wire boot turned a 1/2 turn and remove only the boot. Next, remove the Ignition Coil bolts and pull the Ignition Coil out from the bracket, it is noted that both of them have two manufacturers for ignition coils and coil brackets: the melco(R) Ignition Coil has square shape while delphi(R) Ignition Coil has round shape, the melco(R) Ignition Coil bracket is square in shape while delphi (R) Ignition Coil bracket is round in shape. For installation, mount the Ignition Coil on the Ignition Coil bracket while following the fastener caution. Replace the Ignition Coil bolts and tighten them to the value of 10 nm (89 lb in). Reinstall the spark plug to the cylinder head, replacing any boot that is unscrewed or deformed. Last, hook the Ignition Coil wiring harness electrical connector to the Ignition Coil and install the intake manifold sight shield.

How to replace the ignition coil for Bank 1 on GMC Acadia?

Begin by removing the upper Intake Manifold before changing the Ignition Coil for bank 1. Remove the electrical connector(s) from the Ignition Coil (4), unscrew the Ignition Coil bolt and take out both the Ignition Coil. Insert the Ignition Coil(s) securely, installing and tightening the Ignition Coil bolt(s) to 10 n.m (89 lb. In.). Attach the engine wiring harness electrical connector(s) (1) onto the Ignition Coil(s) (4) and put back the upper Intake Manifold.

OEM GMC Ignition Coil

Ignition Coil Resistor

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29 Ignition Coils found

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GMC Ignition Coil Part Number: 25202791
$58.77 MSRP: $120.78
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Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
- Replaces: 12654078, 12687140, 12652405
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 Ignition Coil, Green Line Part Number: 12638824
$43.33 MSRP: $76.08
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Product Specifications
- Other Name: Coil Assembly-Ignition; Direct Ignition Coil; Coil; Coil, Ignition Coil
- Replaced by: 25206788
- Replaces: 12629646, 12578224
Fits the following GMC Models:
- Terrain | 2010-2017 | Denali, SL, SLE, SLT | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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GMC Ignition Coil Part Number: 12611424
$79.39 MSRP: $163.16
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Product Specifications
- Other Name: Coil, Ignition; Direct Ignition Coil; Coil; Coil, Ignition Coil
- Replaced by: 12739916
- Replaces: 12570616
Fits the following GMC Models:
- Canyon | 2010-2012 | SLE, SLT | 8 Cyl 5.3 L GAS
- Envoy | 2005-2009 | Denali | 8 Cyl 5.3 L GAS
- Envoy XL | 2005-2006 | Denali, SLE, SLT | 8 Cyl 5.3 L GAS
- Envoy XUV | 2005 | SLE, SLT | 8 Cyl 5.3 L GAS
- Savana 1500 | 2008-2014 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Savana 2500 | 2008-2020 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Savana 3500 | 2008-2020 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Sierra 1500 | 2007-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 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-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Sierra 2500 HD | 2007-2019 | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Sierra 3500 HD | 2007-2019 | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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GMC Ignition Coil Part Number: 12629472
$44.47 MSRP: $91.40
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Product Specifications
- Other Name: Coil, Ignition; Ignition Control Module; Direct Ignition Coil; Ignition Module; Coil, Ignition Coil
- Replaced by: 19421261
Fits the following GMC Models:
- Canyon | 2007-2012 | SL, SLE, SLT, WT | 4 Cyl 2.9 L GAS, 5 Cyl 3.7 L GAS
- Envoy | 2006-2009 | SLE, SLT | 6 Cyl 4.2 L GAS
- Envoy XL | 2006 | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Ignition Coil Part Number: 12632479
$64.62 MSRP: $115.40
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Product Specifications
- Other Name: Coil, Ignition; Direct Ignition Coil; Coil On Plug Coil; Coil, Ignition Coil
- Replaces: 12590990, 12610626, 12618542
Fits the following GMC Models:
- Acadia | 2007-2016 | Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS
- Acadia Limited | 2017 | Base | 6 Cyl 3.6 L GAS
- 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 Spark Plug Part Number: 19418102
$83.97 MSRP: $172.56
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Product Specifications
- Other Name: Coil Assembly, Ignition; Ignition Coil; Coil, Ignition Coil
- Replaces: 12583514, 12613057, 12629037
Fits the following GMC Models:
- Acadia | 2009 | SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Ignition Coil Part Number: 19418993
$55.76 MSRP: $114.58
You Save: $58.82 (52%)
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Product Specifications
- Other Name: Coil Assembly, Ignition; Coil, Ignition Coil
- Replaces: 12558693, 19355500
Fits the following GMC Models:
- Sierra 1500 | 1999-2007 | Base, C3, Denali, HT, 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, 8 Cyl 6.2 L GAS
- Sierra 1500 Classic | 2007 | 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
- Sierra 1500 HD | 2005-2006, 2001-2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 1500 HD Classic | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 1999-2004 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2001-2007 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
- Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
- Sierra 3500 Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
- Sierra 3500 HD | 2007 | SLE, SLT, WT | 8 Cyl 6.0 L GAS
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GMC Ignition Coil Part Number: 19432144
$104.03 MSRP: $185.76
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Product Specifications
- Other Name: Coil Assembly, Ignition; Ignition Module; Coil, Ignition Coil
- Replaces: 12587153, 12595088, 12568185
Fits the following GMC Models:
- Savana 1500 | 2008-2014 | Base | 6 Cyl 4.3 L GAS
- Sierra 1500 | 2007-2013 | WT | 6 Cyl 4.3 L GAS
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GMC Ignition Coil Part Number: 12498335
$100.35 MSRP: $179.20
You Save: $78.85 (44%)
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Product Specifications
- Other Name: Coil, Ignition Coil; Coil
- Replaces: 01985473, 1985473
Fits the following GMC Models:
- C1500 | 1984-1986 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C1500 Suburban | 1984-1986 | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C2500 | 1984-1986 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1984-1986 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1984-1986 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- Caballero | 1984-1987 | Amarillo, Base, Diablo | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- G1500 | 1984-1987 | Rally, Rally Custom, Rally STX, Vandura | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- G2500 | 1984-1987 | Rally, Rally Custom, Rally STX, Vandura | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- G3500 | 1984-1987 | Magnavan, Rally, Rally Camper Special, Rally Custom, Rally STX, Vandura, Vandura Special | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- Jimmy | 1984-1989 | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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GMC Ignition Coil Part Number: 12498336
$73.85 MSRP: $151.76
You Save: $77.91 (52%)
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Product Specifications
- Other Name: Coil, Ignition Coil; Coil
- Replaces: 01985474, 1985474
Fits the following GMC Models:
- C1500 | 1984 | Base | 6 Cyl 4.1 L GAS
- C2500 | 1984 | Base | 6 Cyl 4.1 L GAS, 6 Cyl 4.8 L GAS
- C3500 | 1984 | Base | 6 Cyl 4.8 L GAS
- Caballero | 1984-1987 | Amarillo, Base, Diablo | 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS
- G1500 | 1984 | Rally, Vandura | 6 Cyl 4.1 L GAS
- G2500 | 1984 | Rally, Vandura | 6 Cyl 4.1 L GAS
- G3500 | 1984 | Vandura | 6 Cyl 4.1 L GAS
- K1500 | 1984 | Base | 6 Cyl 4.1 L GAS
- K2500 | 1984 | Base | 6 Cyl 4.8 L GAS
- K3500 | 1984 | Base | 6 Cyl 4.8 L GAS
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GMC Ignition Coil Part Number: 12712681
$46.59 MSRP: $73.97
You Save: $27.38 (38%)
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Product Specifications
- Other Name: Coil, Ignition; Coil, Ignition Coil
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 Ignition Coil Part Number: 19418995
$41.68 MSRP: $114.58
You Save: $72.90 (64%)
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Product Specifications
- Other Name: Coil, Ignition Coil; Coil; Coil Kit, Ignition Coil
- Replaces: 01115468, 12498334, 01115315, 1115315, 1115468
Fits the following GMC Models:
- C1500 | 1988-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1992-1995 | Base, SLE, SLT | 8 Cyl 5.7 L GAS
- C2500 | 1988-1995 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1995 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C3500 | 1988-1995 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Caballero | 1985-1987 | Amarillo, Base, Diablo | 6 Cyl 4.3 L GAS
- G1500 | 1987-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- G2500 | 1987-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- G3500 | 1987-1996 | Magnavan, Rally, Rally Camper Special, Rally Custom, Rally STX, Vandura, Vandura Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- Jimmy | 1987-1995 | Base, Sierra Classic, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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GMC Ignition Coil Part Number: 12708496
$78.58 MSRP: $161.49
You Save: $82.91 (52%)
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Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
- Replaced by: 12726023
Fits the following GMC Models:
- Savana 2500 | 2021-2023 | Base, LS, LT | 8 Cyl 6.6 L GAS
- Savana 3500 | 2021-2023 | Base, LS, LT | 8 Cyl 6.6 L GAS
- Sierra 1500 | 2014-2023 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 6 Cyl 4.3 L FLEX, 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
- Sierra 1500 Limited | 2019 | Base, SLE | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Sierra 2500 HD | 2020-2024 | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2024 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Yukon | 2015-2023 | AT4, Denali, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Yukon XL | 2015-2023 | AT4, Denali, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Ignition Coil Part Number: 19418996
$70.98 MSRP: $145.86
You Save: $74.88 (52%)
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Product Specifications
- Other Name: Coil Assembly, Ignition; Coil, Ignition Coil
- Replaces: 10489421, 19207138
Fits the following GMC Models:
- C1500 | 1996-1999 | Sierra GT, Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1996-1999 | Base, SLE, SLT | 8 Cyl 5.7 L GAS
- C2500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1996-1999 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C3500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Jimmy | 1996-2001 | Base, Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- K1500 | 1996-1999 | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K1500 Suburban | 1996-1999 | Base, SLE, SLT | 8 Cyl 5.7 L GAS
- K2500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K2500 Suburban | 1996-1999 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
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GMC Ignition Coil Part Number: 12707304
$33.39 MSRP: $62.70
You Save: $29.31 (47%)
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Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
- Replaced by: 12741091
- Replaces: 12666339
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 Pick-Up Coil Part Number: 10467470
Product Specifications
- Other Name: Coil, Distributor Shaft; Ignition Coil; Coil
Fits the following GMC Models:
- Safari | 1989-1990 | Base | 4 Cyl 2.5 L GAS
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GMC Pole Piece Part Number: 1976925
Product Specifications
- Other Name: Pole Piece & Plate, Distributor; Ignition Coil; Pickup Coil; Pole Piece & Plate; Coil
- Replaced by: 19110917
Fits the following GMC Models:
- Caballero | 1984 | Amarillo, Base, Diablo | 6 Cyl 3.8 L GAS
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GMC Ignition Coil Part Number: 12498046
Product Specifications
- Other Name: Coil, Ignition Coil; Coil
- Replaces: 01115455, 1115455
Fits the following GMC Models:
- S15 | 1984 | Base, High Sierra, Sierra Classic | 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
- S15 Jimmy | 1984 | Base, Gypsy, Sierra Classic | 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
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GMC Ignition Coil Part Number: 94235997
Product Specifications
- Other Name: Coil I; Coil, Ignition Coil
Fits the following GMC Models:
- S15 | 1984-1985 | Base, High Sierra, Sierra Classic | 4 Cyl 1.9 L GAS
- S15 Jimmy | 1984 | Base, Gypsy, Sierra Classic | 4 Cyl 1.9 L GAS
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GMC Ignition Coil Part Number: 10477944
Product Specifications
- Other Name: Coil, Ignition; Coil, Ignition Coil
Fits the following GMC Models:
- Jimmy | 1994-1995 | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- Sonoma | 1994-1995 | SL, SLE, SLS | 6 Cyl 4.3 L GAS

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GMC Ignition Coil

Choose OEM Ignition Coil, 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 Ignition Coil. 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 Ignition Coil upgrades mere battery juice to the thunder beats the other cylinders are yearning to get. GMC constructs SUVs and trucks that get within their stride when dealing with rugged roads and heavy trailers. A boxed steel frame is not flexible and suspension can remain true to form in potholes. Electronic aids like the surround vision and the hitch guidance ensure that drivers are not stressed but rather they are alert. Cabins are quiet, courtesy of intelligent engine-mount, layered glass, and thus, conversations endure highway speed. MultiPro tailgate folds, unfolds and gets out of the way, making work of loading quicker. Brutal heat, deep-cold stress testing is no excuse but guarantees long running life. GMC continues to drive capability with no room to add in the actual toughness with smooth words. Ignition Coil is placed between the battery feed and spark plugs whose primary winding is applied to store energy which is then discharged by a rapid collapse and causes thousands of volts to be applied to the secondary winding; the surge is then applied to jump the gap between the plugs and ignite the mix. Designs of Ignition Coils differ between distributor, coil-on-plug and wasted spark layouts, but all of them operate on the same principles of induction to provide consistent fire. A weak coil chokes plugs off the spark and the engines slow down, the fuel burns reluctantly and the acceleration effect is like walking through mud. Check signals before damage to cat and wallets.

GMC Ignition Coil Parts and Q&A

Ignition Coil
12611424
Q: How to replace the ignition coil on GMC Sierra 1500?
A:
In order to change the Ignition Coil, you need to take out the intake manifold sight shield. Remove the Ignition Coil wiring harness electrical connector and also remove the spark plug wire, leaving the spark plug wire boot turned a 1/2 turn and remove only the boot. Next, remove the Ignition Coil bolts and pull the Ignition Coil out from the bracket, it is noted that both of them have two manufacturers for ignition coils and coil brackets: the melco(R) Ignition Coil has square shape while delphi(R) Ignition Coil has round shape, the melco(R) Ignition Coil bracket is square in shape while delphi (R) Ignition Coil bracket is round in shape. For installation, mount the Ignition Coil on the Ignition Coil bracket while following the fastener caution. Replace the Ignition Coil bolts and tighten them to the value of 10 nm (89 lb in). Reinstall the spark plug to the cylinder head, replacing any boot that is unscrewed or deformed. Last, hook the Ignition Coil wiring harness electrical connector to the Ignition Coil and install the intake manifold sight shield.
Ignition Coil
12632479
Q: How to replace the ignition coil for Bank 1 on GMC Acadia?
A:
Begin by removing the upper Intake Manifold before changing the Ignition Coil for bank 1. Remove the electrical connector(s) from the Ignition Coil (4), unscrew the Ignition Coil bolt and take out both the Ignition Coil. Insert the Ignition Coil(s) securely, installing and tightening the Ignition Coil bolt(s) to 10 n.m (89 lb. In.). Attach the engine wiring harness electrical connector(s) (1) onto the Ignition Coil(s) (4) and put back the upper Intake Manifold.