What size are Miata spark plugs?

For your new spark plugs to fit properly, their threading needs to be of the correct size and pitch: Thread Size: 14mm. Thread Pitch: 1.25mm.

How long do spark plugs last Miata?

Spark plugs Replace every 120,000 km (75,000 miles). Bolts and nuts on chassis and body T T Exhaust system and heat shields Inspect every 72,000 km (45,000 miles) or 5 years.

Do you need to Gap Iridium spark plugs?

Iridium Power Gapping Tips In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations.

Should you put grease on spark plug threads?

NGK does not recommend the application of lubricant such as copper grease to spark plug threads as the result is a reduction of frictional forces at the thread faces. This will render the torque readings inaccurate and over tightening could occur by up to 20 percent!

What are the best spark plugs for a Miata?

Here are two of the best Miata spark plugs on the market. NGK Standards are the best NA and NB Miata spark plugs you can get. They’re reliable and perfect for older cars. The exception to this rule is if you are running forced induction, in which case NGK’s 4644 BKR7E spark plugs are a better option. Newer cars require modern spark plugs.

What is the part number for the spark plugs in a Mazda?

The original Mazda OEM spark plugs are part number Denso ZC20HPR11. A few other compatible replacement iridium spark plugs with their part numbers are as follows: NGK 94124 ILKAR7L11 , Denso (4711) IXEH20TT and NGK LKAR7BIX-11S (93501).

What size socket do I need for a spark plug?

There are a lot of options out there, but in general, you need 14,16,18,21 mm sockets with both 12 and 6 point configuration. Almost all new vehicles including cars, motorcycles and even garden machines use these spark plugs.

What spark plugs do I need for my Mazda MX-5?

Source Diagram from NKG Mazda recommends that the MX-5’s use 5 or 6 heat range NKG spark plugs for the NB8B and NA 1.6’s. NKG parts BKR5E-11 or BKR6E-11 are for the NB8B 1.8 litre and a further option for the cooler BKR7E-11 is for the 1.6 litre NA’s.