In brief: spark plug costs for the 2016 Chevy Impala depend on which engine you have. The 2.5L four-cylinder uses four plugs, while the 3.6L V6 uses six. Expect roughly $8–$60 for a full four-plug set or $12–$90 for a full six-plug set, depending on brand and material. Labor costs are extra if you have a shop do the replacement.
Engine options and plug counts
The 2016 Impala offered two engine choices. The 2.5-liter four-cylinder requires four spark plugs, while the 3.6-liter V6 requires six. The price you pay for those plugs will depend on the chosen material (copper, platinum, iridium) and whether you buy OEM or aftermarket parts.
Plug counts by engine
- 2.5L I-4 (four plugs): 4 spark plugs total
- 3.6L V6 (six plugs): 6 spark plugs total
Prices vary with material and brand. The following ranges reflect common options available in the U.S. market as of 2024–2026 and can differ by retailer or region.
Price ranges for spark plugs by material/brand
Prices vary by spark plug material and brand. The list below covers typical options you’ll find for a 2016 Impala in many auto parts stores and online retailers.
- Copper-core plugs: about $1–$3 each — $4–$12 for a 4-plug set; $6–$18 for a 6-plug set
- Platinum plugs: about $4–$6 each — $16–$24 for a 4-plug set; $24–$36 for a 6-plug set
- Iridium (or iridium-tipped) plugs: about $8–$12 each — $32–$48 for a 4-plug set; $48–$72 for a 6-plug set
- OEM/GM-recommended (ACDelco or equivalent) plugs: about $6–$10 each — $24–$40 for a 4-plug set; $36–$60 for a 6-plug set
Bottom line: for best longevity and performance, many owners opt for iridium or OEM plugs, but copper plugs are cheaper upfront. Always verify the recommended plug type for your exact engine version in the owner’s manual or with a parts professional.
Buying options and installation considerations
Where you buy and who installs them can affect total cost. Here are common routes and what to expect on installation costs or considerations.
- Auto parts stores (in-store pickup or online): convenient and often with promotions; expect to pay market prices for plugs and a separate charge if installing
- GM dealership parts department: usually sells OEM plugs; typically higher price but guaranteed compatibility
- Online retailers: potential savings on bulk packs or multi-brand options; verify compatibility before purchase
- Independent garage or dealership service: expect a labor charge in addition to parts; labor for a 4-cylinder is usually lower than for a V6
If you DIY, ensure you use the correct gap for your engine, apply anti-seize or torque as recommended, and follow proper safety procedures. If you’re unsure, a quick visit to a reputable shop can confirm the right plug type and the expected total cost including labor.
Summary
The 2016 Chevy Impala can run with either a 2.5L four-cylinder or a 3.6L V6, meaning four plugs or six plugs respectively. Spark plug prices vary widely by material and brand, with typical ranges from about $4–$60 for a 4-plug set and $6–$90 for a 6-plug set, plus potential labor charges if you don’t replace them yourself. Check your exact engine, confirm the recommended plug type, and shop around across OEM and aftermarket options to balance cost and longevity.