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Toyota 4Runner Replacement Spark Plugs Information

Rugged and durable wilderness explorers like the mountain-climbing Toyota 4Runner are made for rough use wherever they're taken but need timely maintenance and top-notch parts to keep on taking on those rugged hills. If an issue develops or a part needs to be fixed, don't scrimp with an unreliable component. That Toyota 4Runner deserves the correct car parts to meet all challenges with full power. Your Toyota 4Runner is rugged enough to overcome any terrain, but needs the highest quality auto parts in order to take you to wherever you're going. When consumers need power and quality they go with vehicles engineered by Toyota. For rugged service and powerful performance from a car, drivers can count on Toyota. Your fine Toyota was put together using care and craftsmanship; it deserves replacement parts with the same top level of value. The spark plugs consist of a pair of electrodes through which an electrical current sparks to ignite the gas, moving the car's pistons. Toyota 4Runner Spark Plugs make use of high-voltage electricity to form the spark required for gas combustion. If your car is experiencing lessened gas mileage, rough idle or stalling, poor acceleration or has trouble starting, you should replace the vehicle's Toyota 4Runner Spark Plugs. Outstanding engine power and road performance are supported by first-rate components and accessories. You chose that high-performance car because it had high-end engine power and performance, back up your decision and use high quality new parts. Our competitors can't give you a better price for Toyota parts and accessories. Because you would not accept something other than a Toyota when you bought your vehicle, why settle for anything other than outstanding parts and support? If you want the most performance from your car or truck, remember that quality parts are part of great performance - sells the parts you need.

Toyota 4Runner Spark Plugs They are available for the following Toyota 4Runner years: 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 09, 08, 07, 06, 05, 04, 03, 02, 01, 00, 99, 98, 97, 96, 95, 94, 93, 92, 91, 90, 89, 88, 87, 86, 85, 84. This part is also sometimes called Toyota 4Runner Spark Plug. We stock spark plugs parts for most Toyota models including Camry, Tacoma, Corolla, Tundra, Sienna, Pickup, RAV4, Avalon, Highlander, Sequoia, Prius, Land Cruiser, Celica, T100, FJ Cruiser, Yaris, Solara, Matrix, MR2, Tercel, Supra, Previa, Echo, Cressida, Venza, Paseo, MR2 Spyder, Prius C, Van, Prius V, Corona, Stout, Van Wagon, Hi Lux, Starlet, Crown, Mark II, Carina, 2000GT and Tiara.

We stock these Spark Plugs brands for the Toyota 4Runner: NGK, Denso, Bosch, Autolite, DIY Solutions, SKP and Motorcraft.

Spark Plugs for Toyota 4Runner - Partsgeek
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Research on Spark Plugs for Toyota 4Runner

The spark plugs in your Toyota 4Runner are one of the main parts of your SUV's ignition system. It is very important for them to work well to have your engine perform well and to get the proper gas mileage that Toyota reports for your 4Runner. If your spark plugs are old you may need some new Toyota 4Runner spark plug wires and some 2004 Toyota 4Runner spark plugs because they can leak voltage, cause misfires in your engine, and reduce acceleration. The long-term problem with your Toyota misfiring is that this can damage the catalytic converter. A new catalytic converter can cost a lot of money to replace and is unnecessary in this case.

The Proper Gap

A spark plug causes the fuel to ignite in the combustion chamber. Without the spark, this will not happen. Each vehicle requires a specific spark plug with a gap to work properly. Your Toyota 4Runner requires a Toyota 4Runner spark plug gap. A good 1997 Toyota 4Runner spark plug change will keep the proper fuel efficiency and it is recommended that the Toyota 4Runner spark plug replacement interval is approximately every 30,000-50,000 miles. It is a routine maintenance item just like an oil change but not as frequent.


If your Toyota is running sluggish or has poor acceleration there can be a couple of different causes. It can be a combination of the multiple sensors in your car, the onboard computer, or the ignition system in some cases. Another very simple option is that you may need a new 2000 Toyota 4Runner spark plug replacement. The spark plug is made up of materials that work in conjunction with each other to produce a spark with enough heat to ignite the fuel mixture. When these materials wear out over time, then the ability of the spark plug to be effective is reduced and this can affect the acceleration until you get some new spark plugs.

Warning Signs

There are other warning signs that may indicate that you haven't followed the 1999 Toyota 4Runner spark plug replacement schedule and need new plugs. Poor fuel economy is caused by the gap between the electrodes being too close or far away. This causes the spark plug to not burn efficiently. Another challenge with a bad spark plug can be a misfiring engine. This can be caused by a damaged spark plug wire and spark plug. Lastly, your Toyota not starting at all may be a sign of a problem with the spark plugs. Your spark plugs may be worn so much that they may not deliver the spark.

Replacement Costs

If you choose to get your spark plugs replaced at a local repair shop because you want to follow the spark plug change interval listed in the manual, then you will spend a couple hundred dollars. About 70% of that is for labor. If you watch a couple online videos you can see the process in detail. Sometimes a 4Runner forum will help you as well. All you need are the parts and you can get the best spark plugs for your SUV at at a savings. We have a low overhead and that converts into savings for you

Some of our Customer Reviews
Very Satisfied
Reviewer: Butch

Again i am very happy with Parts Geeks.

These plugs came pre gaped to the right gap.

1994 Toyota 4Runner Spark Plug

Very Satisfied
Reviewer: Jay

Awesome price and oem quality.

2004 Toyota 4Runner Spark Plug

Very Satisfied
Reviewer: Can't beat the price..

Great price beat all retail stores

in my area even with the shipping fee I would and will order parts from Parts Geek again.

1998 Toyota 4Runner Spark Plug

Very Satisfied
Reviewer: Awesome deal

Item was as described. Shipping was super fast. The price was great.

1994 Toyota 4Runner Spark Plug

Very Satisfied
Reviewer: Long tran

Right part easy to order, fast shipping, will order again. price is reasonable

1998 Toyota 4Runner Spark Plug

Somewhat Satisfied
Reviewer: BLT

I have a 4runner supercharged. Since putting these plugs in my vehicle has overheated. I wanted Denso but I need a cooler dual ground plug.

2001 Toyota 4Runner Spark Plug