At a glance, six spark plugs for this SUV typically cost about $12 to $90 for the parts, with total installed price including labor generally around $150 to $350 depending on location and the type of plugs chosen. Prices can vary, so check current prices at your local retailer or shop.
The 2012 GMC Acadia uses a 3.6-liter V6 engine that requires six spark plugs, one per cylinder. Prices vary by material and brand (copper, platinum, or iridium) and by whether you buy from a dealer, auto parts store, or online. Long-life plugs tend to be more expensive but may reduce the need for future replacements. Always verify the recommended plug type in your owner's manual or with a dealer, as mismatching plugs can affect performance.
Prices by plug type
Prices reflect typical consumer retail ranges at major auto parts retailers. The cost per plug will vary by brand and retailer.
- Copper core spark plugs: about $2–$4 per plug
- Platinum spark plugs: about $4–$8 per plug
- Iridium spark plugs: about $8–$15 per plug
For a six-cylinder engine, parts alone run roughly $12–$90 depending on the chosen type. Some premium or OEM (original equipment) plugs can exceed these ranges at the high end.
Labor and total installed cost
Installing six spark plugs typically requires about 1 to 2 hours of labor, depending on the shop and access to each plug. Labor rates vary by region and shop, commonly ranging from $75 to $150 per hour. Overall installed cost usually falls in the neighborhood of $150 to $350, including parts, with dealers often pricing toward the higher end. If ignition coils, boots, or fluids also need replacement, the price can rise further.
Buying tips
To ensure compatibility and performance, verify the exact OEM part number recommended for your 2012 Acadia’s 3.6L engine. If you are unsure, ask your parts retailer to look up the correct plug by VIN. Consider iridium or platinum long-life plugs for fewer replacements if you prefer maintenance-free intervals, but factor the higher upfront cost. Always replace all six plugs at the same time to maintain even firing and performance.
Summary: Spark plugs for a 2012 GMC Acadia generally cost a few dollars per plug, with six plugging costs totaling roughly $12–$90 for parts. Installations add labor, bringing the typical total to about $150–$350, depending on location, plug type, and any additional parts or services.