🚗 Ignite Your Drive with DENSO Spark Plugs!
The DENSO 3421 Iridium Long Life Spark Plugs come in an 8-piece set, featuring a .043" (1.1mm) gap size. Manufactured by Denso, these genuine parts ensure a direct replacement for your vehicle, enhancing performance and longevity. Weighing 15.4 ounces and measuring 3.62 x 7.68 x 0.96 inches, they are designed for easy installation and optimal fit.
| Manufacturer | Denso |
| Brand | Denso |
| Item Weight | 15.4 ounces |
| Product Dimensions | 3.62 x 7.68 x 0.96 inches |
| Manufacturer Part Number | 3421 |
M**.
GOING STRONG 6 MONTHS IN
BETTER GAS MILEAGE
Z**E
Quality
Worked well and pre gapped.
A**R
Fits 2008 Toyota Sequoia 5.7L
Just like oem. Works great.
E**R
The real thing
Of course, these are the best spark plugs. There are copies on the market that sell for less -- be careful about what you order. I replaced my Denso plugs after 72,000 miles, and the old ones looked fine, with their gaps still set to the original amount. 2008 Sequoia 4.7L V8.
H**T
Highly recommendable for Toyota trucks the right plugs
Highly recommendable for Toyota trucks, manufacture, supplier, very reliable. I will give them a 10 star.
A**A
Great
Worked great. My truck runs better.
R**R
As good as the ones they replaced
How do I rate a sparkplug? They seem to work as good as the ones I replaced, which were in amazingly good shape at 120k. These new iridium plugs are extremely corrosion resistant, so maybe wait to 150k before replacing?
Trustpilot
5 days ago
1 week ago