2014 GMC Sierra 1500 Spark Plugs

Genuine GM spark plugs for the 2014 GMC Sierra 1500, at wholesale prices. Heat range and gap are specified per engine, and GM has revised plug part numbers mid-generation on several engines. GMT900 through 2013, K2XX from 2014 to 2018, and the T1XX from 2019 with the CarbonPro bed option.

When you need them

Misfires under load, rough idle, or a drop in fuel economy. On a light duty pickup, box length and cab style drive more part number splits here than the engine does.

Why buy OEM here

• Wholesale pricing. Most spark plugs numbers land well below dealer list.
• No aftermarket substitutes. These are GM spark plugs, not OE-style equivalents.
• We catch the wrong part before you do. VIN verification is free on every spark plugs order.

Getting the right part

OEM components carry GM warranty coverage, which is usually worth more than the price gap on the invoice. If you are unsure which version you have, give us the VIN and our specialists will confirm fitment. Stock moves out the door the day you order it, assuming you beat the mid-afternoon cutoff.