JDMSPEED iridium spark plugs 3186 for GM trucks, smooth idle and efficiency.
JDMSPEED spark plug wires M8-48322, durable ignition connections for reliable starts.
Compatibility overview for JDMSPEED GM replacement parts across Chevy and GMC vehicles.
Package includes eight spark plugs and eight wires for quick replacement.
High-heat resistant insulation with silicone jacket for reliable electrical contact.
Low resistance path supports steady voltage delivery during engine operation.
Ready-to-install kit for Silverado, Suburban, Yukon and more.
JDMSPEED iridium spark plugs 3186 for GM trucks, smooth idle and efficiency.
JDMSPEED spark plug wires M8-48322, durable ignition connections for reliable starts.
Compatibility overview for JDMSPEED GM replacement parts across Chevy and GMC vehicles.
Package includes eight spark plugs and eight wires for quick replacement.
High-heat resistant insulation with silicone jacket for reliable electrical contact.
Low resistance path supports steady voltage delivery during engine operation.
Ready-to-install kit for Silverado, Suburban, Yukon and more.

JDMSPEED Iridium Spark Plugs 3186 & Wires M8-48322 — Replacement Kit for Chevy Silverado, Suburban, Avalanche & GMC Yukon Sierra

Premium JDMSPEED GM Ignition Replacement Kit A dependable ignition system can influence how smoothly your vehicle starts...
Vendor: JDMSPEED
Availability: In stock
£71.42
£71.42
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JDMSPEED iridium spark plugs 3186 for GM trucks, smooth idle and efficiency.

JDMSPEED Iridium Spark Plugs 3186 & Wires M8-48322 — Replacement Kit for Chevy Silverado, Suburban, Avalanche & GMC Yukon Sierra

£71.42
JDMSPEED iridium spark plugs 3186 for GM trucks, smooth idle and efficiency.
JDMSPEED spark plug wires M8-48322, durable ignition connections for reliable starts.
Compatibility overview for JDMSPEED GM replacement parts across Chevy and GMC vehicles.
Package includes eight spark plugs and eight wires for quick replacement.
High-heat resistant insulation with silicone jacket for reliable electrical contact.
Low resistance path supports steady voltage delivery during engine operation.
Ready-to-install kit for Silverado, Suburban, Yukon and more.

JDMSPEED Iridium Spark Plugs 3186 & Wires M8-48322 — Replacement Kit for Chevy Silverado, Suburban, Avalanche & GMC Yukon Sierra

£71.42
Description
Description
x

Premium JDMSPEED GM Ignition Replacement Kit

A dependable ignition system can influence how smoothly your vehicle starts and idles. The JDMSPEED Iridium Spark Plugs 3186, paired with M8-48322 spark plug wires, are designed to fit a broad range of GM trucks and SUVs. Built for engines commonly found in 5.3L, 6.0L, and 6.2L configurations, this kit offers a cohesive upgrade that aligns with the vehicle’s original performance goals.

What’s inside

  • Eight 3186 iridium spark plugs, engineered for durable, consistent sparking
  • Eight M8-48322 spark plug wires, crafted for reliable electrical transfer

Compatibility highlights

  • Chevy Silverado 1500/2500HD/3500HD (2007–2014)
  • Chevy Suburban 1500/2500 (2007–2014)
  • Chevy Avalanche (2007–2014), Tahoe (2008–2014)
  • Chevy Caprice, Colorado (2007–2012), Corvette (2007–2013)
  • GMC Savana 1500/2500/3500 (2008–2010), Sierra 1500/2500HD/3500HD (2008–2013)
  • GMC Yukon XL1500/XL2500 (2008–2014), Canyon (2010–2011)

Key design features

  • Double silicone jacket with a fiberglass wire layer for durability in heat and vibration
  • Heat-resistant insulation to help maintain a dependable electrical connection
  • Low electrical resistance to support stable ignition performance under load

Note: This kit references specific part numbers and vehicle models for GM vehicles. Actual fit can vary by engine configuration and trim; verify compatibility with your vehicle’s documentation before installation. This replacement set is intended to support your maintenance or upgrade goals with a cohesive, ready-to-install solution.

FAQ

Q: Which vehicles are compatible with the JDMSPEED 3186 kit?

A: Compatible with Chevy Silverado, Suburban, Avalanche, Tahoe and GMC Sierra/Yukon models from 2007–2014; see part numbers to confirm exact fit.

Q: What does the kit include?

A: Eight 3186 iridium plugs and eight M8-48322 spark plug wires.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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