![]() ![]() Unless you have a performance vehicle or a car with a unique engine layout like a Subaru, you can expect to pay between $150-and $300. In cases like this, the time and cost involved in a spark plug replacement can increase exponentially. Removing the spark plugs on the rear of these engines is difficult and can lead to the plugs being broken off in the cylinder head. ![]() A good example of this is on Ford Modular V8 and V10 engines produced in the mid-2000s. Sometimes a vehicle’s design from the factory can cause issues with spark plug replacement. The horizontally opposed layout of the engine leaves very little space to work when compared to inline and V layout motors. Other layouts like flat engines (sometimes called “boxer”), commonly seen on Subaru’s and Porsches, require more time to change the spark plugs. All that extra disassembly adds to the labor time. The intake manifold will need to be removed to reach the plugs on the back bank. A good example of this is the Nissan Murano. V6 and V8 engines take longer, particularly when mounted transversely. Inline four-cylinder and six-cylinder engines can take an hour or less because the plugs are right on top. Labor rates will vary depending on the car. With any service, you pay a labor rate for the technician. Depending on the condition of these components, you may need to replace them as well, which will add to the cost. Modern vehicles utilize coil packs, and older vehicles will use distributors or ignition coils with spark plug wires. Sometimes, you will need to replace more than just spark plugs. In most cases, spark plugs will cost around $15 – $20 each. Low-quality plugs can be as cheap as five dollars each, while high-quality ones can run you over $50 per plug. The price of spark plugs varies significantly. Replacing the plugs on a V8 pickup truck will, generally, be more expensive than replacing the plugs on a four-cylinder commuter car. The number of cylinders in your engine will have a direct impact on the cost of a spark plug replacement. There are a few factors that impact the price of a spark plug replacement. How Much Does a Spark Plug Replacement Cost? The best way to know for certain is to look at your owner’s manual or speak with a service advisor at your trusted auto repair shop. Sports cars and performance vehicles will have shorter intervals. For the vast majority of vehicles, the interval will be around 50,000 to 60,000. To recap, you should plan on replacing the plugs on your car or truck every 30,000 to 90,000 miles. In another blog post, we cover in detail how often spark plugs should be changed. Along with other maintenance items like brake services, coolant flushes, and oil changes, regular spark plug changes are essential to keeping your car or truck running as it should. On gasoline engines, spark plugs provide the spark needed for combustion, generating power, and allowing your vehicle to move. Replacing spark plugs is part of regular vehicle maintenance. ![]()
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