Best spark plugs for 05 Prius

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by shepdawg, May 14, 2014.

Page 2 of 2

douglasjre Senior Member

Joined:

Sep 13, 2008

2,121

704

0

Location:

Null, NL

Vehicle:

2010 Prius

Model:

----USA----

Metrolens said: ↑

Hi all, I'm about to change the spark plugs on my 2005 Gen 2, 190,000 miles. Going back through the maintenance folder, I believe it is running its original sparkplugs. The car still runs great, getting over 50+ MPG, but obviously it is high time for new sparkplugs.

I am going to get a set of NGK 4996 Iridium Laser plugs. Amazon has these, for significantly cheaper than the same set at AutoZone. Is there some way to know whether these Amazon ones are counterfit, or would they be ok to buy?

And, is there anything I should be aware of before attempting the install, especially given the age of the plugs? I have watched videos on how to do it and it seems fairly easy, with the exception of the rightmost spark plug which requires its electrical connector being unplugged first.
Click to expand...

Chinese fakes from Amazon will grenade your engine

#21 douglasjre, Aug 13, 2025 at 11:51 PM

Metrolens likes this.

(You must log in or sign up to post here.)

Page 2 of 2