2003 GMC Sierra 2500 Ignition Kits

Essential 2003 GMC Sierra 2500 Ignition Kits

MSD Ignition – Coils; GM L-Series Truck 99-09; 8-Pack (Part No.82648)

Coils; GM L-Series Truck 99-09; 8-Pack

from

$499.99
Looking to replace your worn out LS coils with a more efficient upgrade? The new MSD Blaster LS Coil line is ideal for your modern GM muscle car or truck. The coils are designed as a bolt-in replacement yet have been thoroughly tested and detailed by our experienced engineering team. The improved efficiency of these Blaster Coils will give your LS the ignition boost you’re looking for.

Product Features:
  • Replacement Coil
  • Full One Year Warranty
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Accel – Coil:GM Ls2 Ls3 Ls7 8-Pack (Part No.140043-8)

Coil:GM Ls2 Ls3 Ls7 8-Pack

from

$519.99
ACCEL Super Coils feature advanced bobbin technology, highly specialized silicon magnetic steel cores, optimized windings, proper resistance and engineered turn ratios that deliver a high performance, quality coil. Specialized high temperature epoxy resists shock and vibration, while increasing thermal conductivity. These are direct high performance replacements for OEM coils.

Product Features:
  • These coils feature advanced bobbin technology.
  • Highly specialized silicone magnetic steel cores with optimized windings
  • Specialized high temperature epoxy filled housings resists shock, vibration, chemicals, and overall engine bay environment.
  • These are a direct performance bolt on upgrade.
  • The ACCEL bodies are molded in a dielectric high-strength material.
  • 8 Pack
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MSD Ignition – Coil; Street Fire; GM L-Series Truck 99-09; 8-Pack (Part No.55108)

Coil; Street Fire; GM L-Series Truck 99-09; 8-Pack

from

$409.99
MSD Street Fire coils will improve the performance of your late model GM or Ford vehicle. The E-core dual connector and TFI coils feature epoxy-filled construction and 48,000 maximum volts. They mount directly in place of the factory coil and accept the factory connectors for an easy installation.

Product Features:
  • Increased Spark Energy Over The Entire RPM Range Of The Engine
  • Coils Bolt In Place Of The Factory Units
  • Accepts OEM Connections For A Simpler Installation
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Accel – Coil:GM Ls2 Ls3 Ls7 8-Pack-Black (Part No.140043K-8)

Coil:GM Ls2 Ls3 Ls7 8-Pack-Black

from

$628.99
Now you can have ACCEL late model Supercoils in additional colors

Product Features:
  • These coils feature advanced bobbin technology.
  • Highly specialized silicone magnetic steel cores with optimized windings
  • Specialized high temperature epoxy filled housings resists shock, vibration, chemicals, and overall engine bay environment.
  • These are a direct performance bolt on upgrade.
  • The ACCEL bodies are molded in a high dielectric strength material.
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MSD Ignition – Coils; Street Fire; GM L-Series Truck 99-07; 8-Pack (Part No.55098)

Coils; Street Fire; GM L-Series Truck 99-07; 8-Pack

from

$471.99
MSD Street Fire coils will improve the performance of your late model GM or Ford vehicle. The E-core dual connector and TFI coils feature epoxy-filled construction and 48,000 maximum volts. They mount directly in place of the factory coil and accept the factory connectors for an easy installation.

Product Features:
  • Increased Spark Energy Over The Entire RPM Range Of The Engine
  • Coils Bolt In Place Of The Factory Units
  • Accepts OEM Connections For A Simpler Installation
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MSD Ignition – Coils; GM LS Truck 99-07; 8-Pack (Part No.82638)

Coils; GM LS Truck 99-07; 8-Pack

from

$592.99
Looking to replace your worn out LS coils with a more efficient upgrade? The new MSD Blaster LS Coil line is ideal for your modern GM muscle car or truck. The coils are designed as a bolt-in replacement yet have been thoroughly tested and detailed by our experienced engineering team. The improved efficiency of these Blaster Coils will give your LS the ignition boost you’re looking for.

Product Features:
  • Replacement Coil
  • Full One Year Warranty
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MSD Ignition – Coils; Pro Power; GM L-Series Truck 99-07; 8-Pack (Part No.82868)

Coils; Pro Power; GM L-Series Truck 99-07; 8-Pack

from

$991.99
MSD ignition’s Multiple Spark Coils (MSC) will fit in place of the stock Gen-III GM coils and connect directly to the factory connec­tors. Once installed, you’ll have the power and performance of higher energy sparks, crowned with MSD’s multiple spark discharge. Increased spark energy and voltage, along with multiple spark capabilities, help improve the combustion process of the fuel mix­ture to create an efficient burn. This results in improved throttle response, smooth idle and quick starts, plus increased high rpm performance. There are two types of housings for the MSD coils. Check your application for the visual match.

Product Features:
  • Multiple Sparks At Idle RPM
  • Direct Bolt-In to Factory Connectors
  • Improved Spark Energy And Voltage Output
  • Patented Winding Design and Materials
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Dorman – Knock Sensor And Harness Kit (Part No.926-084)

Knock Sensor And Harness Kit

from

$94.99
Check engine light on and vehicle running rough? Could be a failed knock sensor. This ignition knock sensor kit combines both necessary sensors and the wiring harness that joins them for a complete repair in one package.

Product Features:
  • Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
  • Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
  • Quality assured – benchmarked against original components for performance and quality
  • Excellent value – original equipment quality at significant cost savings
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2003 GMC Sierra 2500 Ignition Kits

Maybe you’re in the middle of a full rebuild of that 2003 GMC Sierra 2500. Maybe you just need a couple of Ignition Kits. Either way, Advance Auto Parts has 9 different Ignition Kits in our inventory ranging from $94.99 to $991.99. That means you can find the exact parts or products you need to keep that 2003 GMC Sierra 2500 running smoothly.

Ignition Kits are only as good as their brand. We stock 3 different brands to make sure you have plenty of trusted parts to choose from for your 2003 GMC Sierra 2500. Dorman, Accel, and MSD Ignition are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Ignition Kits for your 2003 GMC Sierra 2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Ignition Kits to keep your 2003 GMC Sierra 2500 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Ignition Kits Brands To Make Your 2003 GMC Sierra 2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 GMC Sierra 2500 demands trusted brand parts and products to keep it running. Many trusted brands of Ignition Kits make up Advance Auto Parts’ inventory, and all are ready to help make your Sierra 2500 the best it can be. Be sure to browse some of our top Ignition Kits brands and parts.

FAQs for 2003 GMC Sierra 2500 Ignition Kits

What are the most purchased Ignition Kits for the 2003 GMC Sierra 2500?

Out of 9 Ignition Kits for the 2003 GMC Sierra 2500, the most popular in our inventory are:
Knock Sensor And Harness Kit
from $94.99
This product is not rated
Knock Sensor And Harness Kit
Ignition Knock (Detonation) Sensor Kits
Coil:GM Ls2 Ls3 Ls7 8-Pack
from $519.99
This product is not rated
Coil:GM Ls2 Ls3 Ls7 8-Pack
Direct Ignition Coil Kits
Coils; Street Fire; GM L-Series Truck 99-07; 8-Pack
from $471.99
This product is not rated
Coils; Street Fire; GM L-Series Truck 99-07; 8-Pack
Direct Ignition Coil Kits