Autolite Platinum Spark Plug: Improved Performance & Durability, AP5243
In stock
$5.49
Listed as compatible with this vehicle by the retailer feed.
Check price2014 GMC Sierra 3500HD Spark Plugs
5 products listed as compatible with this vehicle by the retailer feed.
GM Genuine Parts Glow Plug, 9G
In stock
$21.99
Listed as compatible with this vehicle by the retailer feed.
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Autolite Diesel Engine Glow Plug: High Intensity Concentrated Heat, Reliable Starts, 1120
In stock
$14.99
Listed as compatible with this vehicle by the retailer feed.
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Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5243
Out of stock
$7.49
Listed as compatible with this vehicle by the retailer feed.
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Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5243
Out of stock
$11.49
Listed as compatible with this vehicle by the retailer feed.
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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.