How much does it cost to replace ignition coils on a Lexus RX350?

Replacing all six ignition coils on a Lexus RX 350 generally runs about 440–1,680 dollars, while replacing a single coil typically costs 140–480 dollars. The final price depends on parts (aftermarket vs. OEM), local labor rates, and whether diagnostic fees apply.

What affects the price

Several factors influence the total cost of ignition coil replacement, including the number of coils being replaced, the type of coils used, the mechanic’s hourly rate, regional labor costs, and whether a diagnostic check is needed or spark plugs are replaced at the same time.

Costs if you replace all six coils

Below is a breakdown of the typical price ranges you can expect when replacing every ignition coil on the RX 350. The ranges assume standard coil-on-plug units and excluding any unusual complications.

• Parts – six coils:
  
  
  
  • Aftermarket (coil-on-plug): approximately $240–$600 total
  
  
  • OEM/toyota-lexus branded: approximately $720–$1,080 total
  
  
  
  


• Labor – estimated time and cost:
  
  
  
  • Approx. 2–4 hours at $100–$150 per hour: roughly $200–$600
  
  
  
  

Concluding: For replacing all six coils, plan for roughly $440–$1,200 if you use aftermarket coils, or about $920–$1,680 if you opt for OEM parts, plus any diagnostic fees.

Parts options explained

Coils come in aftermarket and OEM flavors. OEM coils tend to be more expensive but may carry longer warranties and match the factory specification, while aftermarket coils can save money but vary in quality. The RX 350 uses coil-on-plug design, so there are six discrete coils to replace, one per cylinder, which can affect both price and labor time.

Costs if you replace a single coil

If only one coil has failed, you can expect a smaller bill, though some shops charge a minimum service fee or diagnostic time. The price depends on whether you choose aftermarket or OEM coils and how much labor is required to access the coil.

• Parts – one coil:
  
  
  
  • Aftermarket: about $40–$100
  
  
  • OEM: about $120–$180
  
  
  
  


• Labor – typically 1–2 hours:
  
  
  
  • Approx. $100–$300
  
  
  
  

Concluding: Replacing a single coil generally totals about $140–$400 with aftermarket parts, or $220–$480 with OEM parts, not including any diagnostic charge.

Other costs to consider

Beyond the coil itself and labor, there are extra charges you may encounter during a repair cycle.

• Diagnostics: typically $80–$120, though some shops waive the fee if you proceed with the repair


• Spark plugs: many technicians recommend replacing spark plugs at the same time, especially on higher-mileage RX 350s, which adds to the labor and parts cost


• Warranty and return policy: some retailers offer parts warranties (and labor guarantees) that can affect the long-term value

Concluding: Always confirm whether diagnostic fees are included in the estimate and whether spark plugs are suggested or required as part of the service.

Tips to save money

Smart planning can help reduce surprises when budgeting for ignition coil replacement.

• Get multiple quotes from independent shops and Lexus dealers to compare prices


• Ask whether the price quotes include both parts and labor, and if OEM versus aftermarket coils are offered


• Inquire about any promotions, warranties, or bundled services (e.g., coil replacement with spark plug service)


• Check if the diagnostic fee can be waived if you proceed with the recommended repair

Concluding: Comparing quotes and asking detailed questions about parts quality, labor time, and warranties can prevent overpaying and help you choose the best option for your RX 350.

What to expect at the shop

When you take your RX 350 in for ignition coil work, expect the technician to perform a diagnostic check, confirm misfire codes (such as P0300-P0306), and plan the replacement around the coil-on-plug configuration. Accessing some coils may require removing other components, which can influence labor time. After replacement, a test drive and diagnostics may be performed to confirm the misfire issue is resolved.

Summary: The cost of replacing ignition coils on a Lexus RX 350 depends heavily on whether you replace all six coils or just one, and on the choice between aftermarket or OEM parts. Typical total ranges are roughly $440–$1,200 for aftermarket six-coil replacements and $920–$1,680 for OEM six-coil replacements; single-coil replacements run about $140–$480. Always factor in diagnostic charges and possible spark plug replacements, and seek multiple quotes to ensure fair pricing.

How long do Lexus ignition coils last?

between 100,000 to 120,000 miles
Lexus ignition coils typically last between 100,000 to 120,000 miles, though their lifespan can vary based on several factors. Frequent short trips or aggressive driving may cause increased wear and tear, leading to earlier failure.

How many ignition coils does a Lexus RX 350 have?

6 Ignition Coils
MAS Set of 6 Ignition Coils Pack Compatible with Lexus ES350 RX350 Lotus Evora Toyota Camry Rav4 Avalon Sienna 3.5l V6 Replacement for C1601 UF487 C1601. The video showcases the product in use.

What year to stay away from Lexus RX 350?

Years to avoid for the Lexus RX 350 include 2007, 2008, 2010, 2016, and 2017 due to common problems like oil leaks, engine issues, brake failures, and faulty sensors. The 2010-2012 models are particularly prone to a ruptured oil cooler line that can cause engine failure, while the 2007-2009 models had issues with cracking dashboards and a faulty brake master cylinder. The 2016 and 2017 models saw recalls related to airbags and issues with rain sensors, notes CoPilot.
 
You can watch this video to learn about the history of the Lexus RX 350 and common problems in different generations: 1mThe Miles DrivenYouTube · Dec 22, 2024
Years to avoid and why

• 2007–2009: These models are known for cracking dashboards and a faulty brake master cylinder that can lead to brake failure. 
• 2010–2012: A common and severe problem with these years is the oil cooler line, which can rupture and lead to engine failure. 
• 2016–2017: The 2016 model year had airbag recalls and was the first year of a new generation, which can lead to early bugs. The 2017 model had issues with the rain sensor and wipers, in addition to having its own airbag recalls. 

What to look for instead

• 2011–2015: These models generally have fewer issues, with the 2013–2015 models in particular being noted as more reliable. 
• 2018–2022: Models from these years are considered more reliable, especially those with the redesigned exterior. 
• 2020–2022: These are considered among the most reliable years, with the 2020 model year being a good choice. 

This video discusses the best Lexus RX 350 years to buy: 59sThe Miles DrivenYouTube · Dec 18, 2024

How much does it cost to replace ignition coils on a Lexus?

The cost to replace a Lexus ignition coil typically ranges from $200 to over $1,300, depending on the specific model and whether one coil or all are replaced. Costs are affected by the price of the new coil, which can range from $35 to over $300, and labor costs, which are often under $100 for a single coil or higher if multiple coils need replacement due to location, notes this Reddit thread and AutoZone.com. 
Cost breakdown

• Part cost: A single ignition coil can range from about $35 to over $300, depending on the model and quality. 
• Labor cost: For one coil, labor is often under $100, but if multiple coils need to be replaced, especially those in hard-to-reach spots, the total labor cost can increase significantly. 
• Total cost:
  • For a single coil: Costs generally range from approximately $200 to $400. 
  • For all six coils: This can cost upwards of $1,300, especially if the intake manifold needs to be removed to access the rear cylinders. 

Factors that influence the total cost

• Your Lexus model: Newer models or those with more complex engine designs may be more expensive to service. 
• Number of coils replaced: Replacing one coil is cheaper than replacing all of them. 
• Labor rates: Shop labor rates vary based on your location. 
• Part quality: The type and brand of the replacement coil will affect the price. 

When to consider replacing all coils

• If one coil fails and is in an area that is difficult to access (like the rear bank of cylinders), it may be cost-effective to replace all of them at the same time. 
• If several coils are nearing the end of their lifespan, it's often recommended to replace them as a set to prevent future issues.