How much are spark plugs for Lexus IS250?
The six spark plugs needed for a Lexus IS250 typically cost about $60 to $150 for the plugs themselves, depending on brand and type, with labor adding to the total if you have a shop do the replacement.
The Lexus IS250 uses a 6-cylinder engine, and prices vary widely based on the plug material (iridium, platinum, or OEM equivalents), whether you buy individual plugs or a six-pack, and the retailer you choose. In practice, most owners opt for iridium or OEM-equivalent plugs for longevity and performance, which drives the price range upward compared with basic platinum or copper options.
What affects spark plug pricing
Price is determined by plug material, brand, and how you buy them (individuals vs. a six-pack). OEM equivalents from Denso/NGK or Lexus-branded parts tend to sit at the higher end of the spectrum, while aftermarket iridium or platinum plugs offer a balance of longevity and cost.
Price ranges by plug type
Below are typical per-plug price ranges you’ll see for a modern IS250. Copper plugs are uncommon for this engine today, so the list emphasizes platinum and iridium options along with OEM-equivalent choices.
- Iridium plugs: roughly $8–$15 per plug (six plugs ≈ $48–$90).
- Platinum plugs: roughly $5–$10 per plug (six plugs ≈ $30–$60).
- OEM/Denso/NGK equivalent plugs: roughly $12–$20 per plug (six plugs ≈ $72–$120).
- Copper plugs (rare for this engine): roughly $3–$6 per plug (six plugs ≈ $18–$36).
These figures reflect typical online and in-store pricing as of 2025 and can vary by retailer, region, and whether you purchase a six-pack or individual plugs.
Concluding note: When shopping, you may find six-plug kits that include anti-seize compound or boot grease and sometimes a discount versus buying each plug separately. Compare whether the kit matches your IS250’s year and engine code to ensure compatibility.
Estimated total cost for six spark plugs for the IS250
Because the IS250 uses six cylinders, the total price for six plugs will depend on the plug type you choose and whether you buy OEM or aftermarket parts. Here are typical total-cost ranges for six plugs, excluding tax or labor.
- Iridium: about $48–$90 total for six plugs.
- Platinum: about $30–$60 total for six plugs.
- OEM/Denso/NGK: about $72–$120 total for six plugs.
- Copper (less common): about $18–$36 total for six plugs.
Labor for replacing six spark plugs varies by shop and region, but you can expect roughly $100–$250 for a typical installation job in many areas. High-demand regions or garages with higher hourly rates will push that higher.
Tips for choosing the right plugs
Always verify the exact spark plug specification for your IS250’s year, engine code, and ignition system. If in doubt, consult your owner's manual or a trusted parts retailer and provide your VIN to ensure you purchase the correct spark plugs and any required gaskets or anti-seize compounds.
Summary: Spark plug prices for a Lexus IS250 range from roughly $18 to $150 for six plugs, depending on plug type and whether you choose aftermarket or OEM parts. Iridium plugs are common for longevity, while OEM equivalents provide dependable performance. Expect labor costs on top of the part price if you have a shop perform the replacement. Always confirm the exact specification for your model year and engine code before purchasing.
How much does it cost to replace spark plugs in a Lexus IS250?
The cost to replace the spark plugs on a Lexus IS250 typically ranges from approximately $800 to over $2,100, depending on the year, parts, and labor rates. For specific years, estimates show an average cost around $1,200-$1,300, with the shop or dealer price potentially reaching up to $2,100 or more. DIY replacement can save on labor costs, which are often estimated between $330 and $400.
Estimated cost breakdown
- Parts: The cost of the spark plugs themselves is relatively low, often quoted at around $12 per plug, but this is before installation, taxes, and dealer charges.
- Labor: Labor can be a significant part of the total cost, with estimates for the work alone ranging from $330 to $400.
- Total Cost: The final price is a combination of parts and labor, with different factors leading to a wide range in estimates. For example, a quote of $850 was mentioned for spark plugs and carb cleaning, while other estimates suggest a much higher total, reports Reddit users.
Factors that influence cost
- Vehicle year: Older models may have different labor times or part costs, with some estimates showing a higher cost for certain years.
- Location: Prices for parts and labor can vary depending on your geographical location.
- Shop vs. DIY: You can save on the labor portion of the cost by doing the replacement yourself if you have the right tools and experience, notes this YouTube video.
What to do
- Get multiple quotes from different shops or dealerships to compare prices.
- If you are comfortable doing so, consider a DIY replacement to save on labor costs.
- Be prepared for a higher price if you go to a dealer, as they may charge more for parts and labor.
What spark plugs does the Lexus IS250 use?
Lexus Is250 Spark Plugs & Glow Plugs
| Capacity | Cylinder | Recommended |
|---|---|---|
| 2500 | 6 | dfh6b-11a |
How much does Lexus charge for spark plug replacement?
The cost to replace Lexus spark plugs can range from $400 to over $1,100, with an average around $400 to $700 at an independent shop. A major factor is how accessible the spark plugs are—some Lexus models, like certain IS and ES sedans, have spark plugs buried under components that add significant labor time and cost, potentially pushing the total well over $1,000.
This video explains how to save money by replacing spark plugs yourself: 1mScrew This!YouTube · Sep 6, 2023
Cost breakdown
- Parts: 6 to 8 spark plugs, which can cost around $10 to $25 each depending on the material (e.g., iridium or platinum), plus any necessary gaskets or other parts.
- Labor: The price is highly variable, depending on how long it takes to access the plugs. It can be as low as a few hours or several, pushing the cost up significantly for models with more complex engine designs.
- Dealer vs. independent shop: Dealerships typically charge more, while independent shops can offer more competitive rates. You may find an independent shop willing to do the work for $100-$200 in labor if the spark plugs are easy to access.
- Other factors: The final price will also depend on your location and the specific parts (like OEM vs. aftermarket) used. If the mechanic recommends replacing other parts, like coils, at the same time, this will also increase the total cost.
How often should you change spark plugs on a Lexus IS250?
every 100,000 miles
Generally, for modern Lexus models equipped with iridium or titanium spark plugs, replacement is recommended every 100,000 miles.
