What spark plugs do Subarus use?

Spark Plugs for Subarus
Subarus typically use NGK spark plugs. The specific part numbers may vary based on the model and year of the Subaru. For example, part number 22401AA670 is a common replacement for 4 cylinder Turbo Subarus, while part number 22401AA370 is a platinum spark plug that fits certain Subaru models like the Legacy and SVX.
It’s important to note that using OEM parts or factory-approved parts is recommended to avoid compromising the quality of the engine when replacing spark plugs in a Subaru. Additionally, it’s advisable to follow the manufacturer’s specifications during the replacement process to ensure proper installation and avoid potential damage to the cylinder head.
If you’re considering replacing spark plugs in your Subaru, it’s best to refer to the owner’s manual for the specific part numbers and recommendations tailored to your vehicle’s make and model.
If you have any further questions about spark plugs for Subarus or need assistance with anything else, feel free to ask!

What is the difference between iridium and platinum spark plugs Subaru?

Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.

What spark plug is better NGK or iridium?

Iridium spark plugs are better at starting engines than other types of spark plug because the spark is highly concentrated in the central electrode, and consequentially requires less voltage to operate. This makes ignitions faster and more reliable, and also reduces power consumption.

Are Subaru spark plugs iridium?

OEM is NGK Iridium spark plugs, with a recommended change interval of 60K miles.

What is Subaru OEM spark plugs?

OEM Subaru spark plugs are made to offer optimum performance since they are constructed from the best porcelain and metals. OEM Subaru spark plugs last as long as the original spark plugs in your Subaru.

How long should OEM spark plugs last?

When To Replace Spark Plugs Quick Tips. Your owner’s manual recommends when to replace spark plugs. Some require changing at 18,000 miles, some at 35,000 miles, and others at 100,000 miles. Reduced acceleration, engine misfires, and rough idling are symptoms indicating you might need new spark plugs.

Are OEM spark plugs better?

A quality OEM plug has a nickel-plated steel shell, as nickel is both corrosion resistant and unlikely to cause a plug to seize in the threads on the cylinder head. Many after-market plugs use a very thin nickel coating or omit it altogether to save money.

Who manufactures Subaru spark plugs?

NGK Subaru pre-gapped spark plugs for Impreza (RS, TS), Outback, Forester, Legacy and Baja models. Per plug pricing, most models take 4 spark plugs.

How often should Subaru spark plugs be changed?

every 60,000 miles
Modern SUBARU BOXER® engines require improved spark plugs made with material like platinum. This means you’ll only have to worry about changing them every 60,000 miles or so.

What are the symptoms of bad spark plugs?

The most common signs of bad spark plugs include start-up trouble, rough idling, sluggish acceleration, declining fuel economy, engine misfiring, and engine knocking.

Why are Subaru spark plugs so expensive?

Because of the cost of iridium, the electrode is thinner, but they still deliver better power, better combustion and longer life than other plugs.