Prices vary by engine and plug type. For a 2019 Cherokee, most models use four spark plugs if they have a four‑cylinder engine and six if they have a six‑cylinder engine. Copper plugs typically cost about $2–5 each, platinum about $4–7 each, and iridium about $8–15 each. A full set runs roughly $8–20 (copper, 4 plugs), $16–28 (platinum, 4 plugs), or $32–60 (iridium, 4 plugs); for six plugs, multiply accordingly to around $12–30 (copper), $24–42 (platinum), or $48–90 (iridium). Prices vary by brand and retailer, and labor is extra.
Engine options and plug counts
The number of spark plugs you need depends on the engine in your Cherokee. The four‑cylinder variants use four spark plugs, while the six‑cylinder variant uses six.
- Four‑cylinder engines (common in 2019 Cherokee models): 4 spark plugs
- Six‑cylinder engines (3.2L variants): 6 spark plugs
Knowing your engine helps you estimate the total plug count and the overall price range you’ll be looking at when buying parts.
Price ranges by plug type
Prices depend on the type of plug you choose. The following are general ballpark ranges you’ll commonly see at major retailers.
- Copper spark plugs: about $2–5 each. 4‑plug set roughly $8–20; 6‑plug set roughly $12–30
- Platinum spark plugs: about $4–7 each. 4‑plug set roughly $16–28; 6‑plug set roughly $24–42
- Iridium spark plugs: about $8–15 each. 4‑plug set roughly $32–60; 6‑plug set roughly $48–90
OEM or premium brands can push prices toward the higher end of these ranges. Always verify the exact plug type recommended for your engine in the owner’s manual and match the replacement to that specification.
Shopping notes
Before buying, consider these tips to get the best value and ensure compatibility.
- Compare prices across retailers (AutoZone, O'Reilly, Advance Auto Parts, RockAuto, and official brand sites).
- Decide whether you want copper (budget), platinum, or iridium (longer life and better performance under some conditions).
- Look for multi-pack discounts (4‑pack or 6‑pack) to reduce per‑plug cost.
- Check the vehicle’s manual for the recommended plug type and the correct gap specification; some engines come pre‑gapped, others require adjustment.
With the right plugs and proper installation, you can maintain optimal engine performance and potentially improve fuel efficiency.
Summary
In brief, spark plug prices for a 2019 Jeep Cherokee depend on engine type and the chosen plug material. Four‑plug configurations (four‑cylinder engines) typically cost about $8–60 for a full set, while six‑plug configurations (six‑cylinder engines) run roughly $12–90, excluding tax and labor. Copper plugs are the cheapest option, platinum sits in the middle, and iridium is the most expensive but offers longer life. Always confirm the exact plug specification for your Cherokee and shop around to find the best price.