GMC Sierra 2500 HD Ignition & Spark Plugs

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We stock Genuine OEM GMC Ignition & Spark Plugs for your GMC Sierra 2500 HD. OEM ignition and spark plugs are designed specifically for your vehicle's engine, ensuring optimal performance and fuel efficiency. These parts are responsible for igniting the fuel in the combustion chamber, making them critical components of your engine's operation. By choosing OEM ignition and spark plugs, you can be confident in their quality and reliability, which can help extend the life of your engine and prevent potential damage or issues. Manufacturer's Warranty Included. Guaranteed Fit. Experts standing by.

Spark Plug

Part Number: 12578277
GM GM
Replaces: 12561454
Description: Vendor:acdelco. Vendor #41-983. 8.1L.
Fits:
  • Chevrolet:
    • Avalanche 2500,
    • Express 3500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Suburban 2500
  • GMC:
    • Savana 3500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Yukon XL 2500
MSRP $10.66
$6.82

Iridium Spark Plug 41-993

Part Number: 12681665
ACDelco GM Genuine Parts ACDelco GM Genuine Parts
Other Names: Spark Plug, 1277
Replaces: 12607234, 19256067, 25162555, 25162556, 25315018, 89017883, 89018051
Description: 5.3L. Vendor:acdelco. Vendor #41-993. 4.3L, 2008-2014. Platinum. 5.7L. 6.0L. 4.3L, 2003-2007. 6.0 & 6.2L. Iridium Tip. 14mm Thread.
Fits:
  • Buick:
    • LaCrosse,
    • Rainier
  • Cadillac:
    • CTS,
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Astro,
    • Avalanche 1500,
    • Avalanche 2500,
    • Blazer,
    • C1500,
    • C2500,
    • C3500,
    • C3500HD,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Impala,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • Monte Carlo,
    • P30,
    • S10,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Tahoe
  • GMC:
    • C1500 Pickup,
    • C2500 Pickup,
    • C3500 Pickup,
    • C3500HD,
    • Jimmy,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P3500,
    • Safari,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Sonoma,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H3
  • Oldsmobile:
    • Bravada
  • Pontiac:
    • Firebird,
    • G8,
    • Grand Prix,
    • GTO
MSRP $15.80
$14.22

2014-2024 GM - Iridium Spark Plug

Part Number: 12622441
GM GM
Other Names: Spark Plug, 1156
Description: 4.3L, 2018-19. 6.6L gas. 6.2L. without supercharger. Iridium is the latest in spark plug technology and is an exact replacement for...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV
  • Chevrolet:
    • Camaro,
    • Corvette,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • LCF 3500HG,
    • Silverado 1500,
    • Silverado 1500 LD,
    • Silverado 1500 LTD,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • Suburban,
    • Tahoe
  • GMC:
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 1500 Limited,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL
MSRP $16.88
$10.80

2006-2020 GM - Iridium Spark Plug

Part Number: 12680072
GM GM
Other Names: Spark Plug, 1252
Replaces: 12563707, 12571164, 12609877, 12621258
Description: 6.0L. Iridium. Vendor:acdelco. Vendor #41-985. Iridium is the latest in spark plug technology and is an exact replacement for vehicles'...
Fits:
  • Buick:
    • LaCrosse,
    • Rainier
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Avalanche 1500,
    • Camaro,
    • Caprice,
    • Colorado,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • Silverado 1500,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • SS,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban 3500 HD,
    • Tahoe
  • GMC:
    • Canyon,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H3,
    • H3T
  • Pontiac:
    • G8
MSRP $16.46
$10.53

2014-2024 GM - Spark Plug Wire

Part Number: 12716289
GM GM
Notes: Included with plug wire set.
Applications: 1.5L.
Other Names: Wire
Replaces: 12633447, 12670293
Description: 4.3L, 2018-19. Express, savana. 4.3l. Wire set. 6.6L gas. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Spark plug wire....
Fits:
  • Cadillac:
    • CT5,
    • CTS,
    • Escalade,
    • Escalade ESV
  • Chevrolet:
    • Camaro,
    • Corvette,
    • Equinox,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • LCF 3500HG,
    • Silverado 1500,
    • Silverado 1500 LD,
    • Silverado 1500 LTD,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • Suburban,
    • Tahoe
  • GMC:
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 1500 Limited,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Terrain,
    • Yukon,
    • Yukon XL
MSRP $32.93
$20.58

2007-2020 GM - Spark Plug Wire

Part Number: 12731653
GM GM
Other Names: Cable Set, Plug Wire, Cable, Plug Wire Set, Wire
Replaces: 12670294, 19180550, 19206446, 19351569
Description: Express, savana. 4.8l. Caprice PPV. 6.0l. 6.2L without supercharger. 7.0L. Hummer H2. 10.5 long. Impala, Monte Carlo. 5.3l.
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Camaro,
    • Caprice,
    • Colorado,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • Impala,
    • LCF 3500,
    • Silverado 1500,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • SS,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban 3500 HD,
    • Tahoe,
    • Trailblazer
  • GMC:
    • Canyon,
    • Envoy,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2,
    • H3,
    • H3T
  • Pontiac:
    • G8
MSRP $68.38
$39.32

1999-2007 GM - Spark Plug Wire

Part Number: 12192133
GM GM
Other Names: Spark Plug Wire, 349v
Description: Coil Stamped 12558693. All models. 4.8l, 5.3l, 6.0l. 10.5 long. Hummer H2. 10.5 long. Durable to help transfer high voltage pulses...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche 1500,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD,
    • Silverado 1500 HD Classic,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe
  • GMC:
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD,
    • Sierra 1500 HD Classic,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2
MSRP $28.62
$17.89

2001-2002 GM - Spark Plug Wire Set

Part Number: 88892832
GM GM
Other Names: Spark Plug Wire Set, 748ff
Description: Durable to help transfer high voltage pulses without damage
Fits:
  • Chevrolet:
    • Avalanche 2500,
    • C3500HD,
    • Express 3500,
    • Silverado 2500 HD,
    • Silverado 3500,
    • Suburban 2500
  • GMC:
    • C3500HD,
    • Savana 3500,
    • Sierra 2500 HD,
    • Sierra 3500,
    • Yukon XL 2500
MSRP $302.76
$164.85

1999-2007 GM - Spark Plug Wire Kit

Part Number: 19417606
GM GM
Other Names: W (S)Wire Kit
Replaces: 19351571, 88892762, 88894393
Description: All models. 4.8l, 5.3l, 6.0l. 5.3, 6.0L. Hummer H2. 9.2". Coil Stamped 19005218. Durable to help transfer high voltage pulses without...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche 1500,
    • Avalanche 2500,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD,
    • Silverado 1500 HD Classic,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe
  • GMC:
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD,
    • Sierra 1500 HD Classic,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2
MSRP $154.66
$85.84

2005-2009 GM - Spark Plug Wire Kit

Part Number: 19417612
GM GM
Other Names: W (S)Wire Kit
Replaces: 19351593, 89018058
Description: Durable to help transfer high voltage pulses without damage
Fits:
  • Buick:
    • LaCrosse,
    • Rainier
  • Cadillac:
    • CTS,
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Impala,
    • Monte Carlo,
    • Silverado 1500,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • SSR,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe,
    • Trailblazer,
    • Trailblazer EXT
  • GMC:
    • Envoy,
    • Envoy XL,
    • Envoy XUV,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2,
    • H3
  • Pontiac:
    • G8,
    • Grand Prix
MSRP $214.32
$116.70

2019-2024 GM - Ignition Switch

Part Number: 39179435
GM GM
Other Names: Ignition Switch
Description: Without keyless start. Without start button. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Work with vehicle electronics to help...
Fits:
  • Chevrolet:
    • Silverado 1500,
    • Silverado 1500 LTD,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • Trailblazer,
    • Trax
  • GMC:
    • Sierra 1500,
    • Sierra 1500 Limited,
    • Sierra 2500 HD,
    • Sierra 3500 HD
MSRP $46.30
$26.62

1999-2007 GM - Ignition Coil

Part Number: 19418993
GM GM
Other Names: Coil
Replaces: 12558693, 19355500
Description: All models. 4.8l, 5.3l, 6.0l. Coil stamped 12558693. 5.3 & 6.0L, mitsubishi. 8.1l. Square. Vendor:mitsubishi. Hummer H2. High quality...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche 1500,
    • Avalanche 2500,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD,
    • Silverado 1500 HD Classic,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Silverado 3500 HD,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe
  • GMC:
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD,
    • Sierra 1500 HD Classic,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2
MSRP $114.58
$63.59
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