Denso (3381) K20HR-U11 Traditional Spark Plug: Enhance Engine Performance with a Single Pack Review

I have purchased Denso products in the past and they have always worked great. They have a groove au in the electrode, but some of them have the u off-centre. Ready? They were all about the same. I always center and space them myself, just to be sure.

These are the spark plugs used from the factory. OEM for my 2007 Toyota Tacoma 4.0L. They were well packaged and all pre-drilled to about .042. Fits like the original. I could see an improvement when I first started the engine. Started faster and started smoothly.

Good spark plug for Suzuki Bandit 1250. No need for anything more expensive unless you are modifying as the Bandit works with spark plugs no problem. I had 20,000 on my old ones and honestly they still looked good, I could have cleaned and reinstalled but already bought these. You can't beat Denso for standard Japanese quality.

I always stick to genuine parts in my cars. Toyota requires these copper plugs on the 2010 Tacoma 4.0, so I drive and change them every 30,000 miles. They look ok, but I'll change them anyway. Get these for your 4.0 taco if you can't find them at your local retailer or store.

Denso K20HR-U11 spark plugs fit and perform as advertised. They install easily with anti-seize coating, and the connector gap was relatively constant, with an error of about 0.006. The distance between the gaps in these plugs can be easily adjusted with a gauge. The packaging was sufficient; The threads and electrodes are protected by a simple plastic sleeve. I would recommend these spark plugs to anyone with a Toyota 1GR-FE 4.0L V6 who wants to retain the performance of a stock engine.