Lexus IS300 Spark Plug Replacement Costs

Estimate price near me

Service Location

Customer Ratings

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Lexus IS300 Spark Plug Replacement is $246 with $106 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2001 Lexus IS300L6-3.0L	Service typeSpark Plug Replacement	Estimate$474.42	Shop/Dealer Price$544.35 - $732.88
2019 Lexus IS300L4-2.0L Turbo	Service typeSpark Plug Replacement	Estimate$358.39	Shop/Dealer Price$413.32 - $574.00
2018 Lexus IS300V6-3.5L	Service typeSpark Plug Replacement	Estimate$677.21	Shop/Dealer Price$801.48 - $1168.86
2003 Lexus IS300L6-3.0L	Service typeSpark Plug Replacement	Estimate$460.91	Shop/Dealer Price$526.26 - $711.36
2005 Lexus IS300L6-3.0L	Service typeSpark Plug Replacement	Estimate$460.91	Shop/Dealer Price$530.13 - $718.13
2016 Lexus IS300V6-3.5L	Service typeSpark Plug Replacement	Estimate$601.19	Shop/Dealer Price$711.88 - $1034.53
2021 Lexus IS300L4-2.0L Turbo	Service typeSpark Plug Replacement	Estimate$358.39	Shop/Dealer Price$413.36 - $574.07
2021 Lexus IS300V6-3.5L	Service typeSpark Plug Replacement	Estimate$508.39	Shop/Dealer Price$590.45 - $831.21

Show example Lexus IS300 Spark Plug Replacement prices

What are spark plugs and how do they work?

Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.

Spark plugs-MATROX-1

When should you replace spark plugs?

Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.

Avoiding spark plug replacement can cause:

Difficulty starting your car.
Check engine light for a misfire code.
Flashing check engine light during acceleration for misfire, this can cause engine damage.
Reduced fuel economy and/or power.
Rough idle and/or unexplained engine vibration.
Failed State emission testing.

Even if only one spark plug is found to be faulty, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.

How do mechanics replace spark plugs?

Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. The mechanic will:

Have the correct spark plugs on hand for your vehicle
Pull any diagnostic trouble codes that may be related to worn spark plugs.
Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
Install new plugs using a torque wrench.
Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with worn spark plugs?

Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.

When having spark plugs replaced keep in mind:

High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(107)

Rating Summary

101

3

1

2

0

101

3

1

2

0

SEE REVIEWS NEAR ME

Luis

28 years of experience

40 reviews

Luis

28 years of experience

by Brandon Lewis

IS300 2001 - Control Arm Assembly - Huntley, IL

Another killer service! Luis knocked out the job in a fraction of the time that was quoted, I look forward to working with him again

Bill

15 years of experience

23 reviews

Bill

15 years of experience

by Harold H Gue

IS300 2001 - Brake Light Bulb - Aliso Viejo, CA

In less than an hour, he had taken care of all my issues with my car. And, the items he pointed out from his 50 point inspection were exactly what I expected. This is so easy and convenient.

Marco

24 years of experience

157 reviews

Marco

24 years of experience

by Thomas Nguyen

IS300 2003 - Brake Hose - Riverside, CA

Great

Claud

6 years of experience

341 reviews

Claud

6 years of experience

by Andrew Wise

IS300 2001 - Steering Rack/Gearbox - Detroit, MI

After rescheduling twice due to weather, Claud got the job done.

Excellent Rating

(107)

Rating Summary

101

3

1

2

0

101

3

1

2

0

SEE REVIEWS NEAR ME

Recent articles & questions

P0407 OBD-II Trouble Code: Exhaust Gas Recirculation Sensor B Circuit Low

P0407 means a problem with the EGR system caused by faulty EGR vacuum solenoid, EGR valve, ground or voltage short in EGR circuit, or bad wiring.

P2040 OBD-II Trouble Code: Reductant Injection Air Pressure Sensor Circuit High Input

P2040 P2040 code definition Reductant Injection Air Pressure Sensor Circuit High Input* *Definition could differ depending on manufacturer code usage, for example, “Oil Quality Sensor ME-SFI” (Mercedes) What the P2040 code means P2040 is an OBD-II generic code for the...

Child Seat Safety Laws in Maine

The The State of Maine mandates very strict requirements for the transportation of children in motor vehicles. These are simply common-sense procedures that have been codified in order to protect children. They are etched in the law simply because people...

What does the vehicle stability assist (VSA) Warning Light mean?

The vehicle stability assist (VSA) Warning Light is located on the instrument panel. When the light illuminates, then there is either a problem with the VSA system, or with the hill start assist, and the vehicle should be inspected. Tip...

Engine hesitating and revving

It sounds like the transmission may be slipping. With the engine running, fully warmed up, and in Park, pull the transmission dipstick and wipe it with a clean rag. Insert the dipstick fully into the tube and pull it back out...

Turbo blow off valve

Hello. The "blow-off-valve" or BOV, is a pressure-release valve designed to prevent over-pressurization of the engine, not the turbocharger itself. While hearing some of the sounds a turbo-charged engine (https://www.yourmechanic.com/article/how-a-modern-engine-works) makes while running through the gears is a most pleasant...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com