Denso FXE20HR11 Iridium Long life Spark plug 3439-4 PK

100% pre-fired for stable operation. Excellent thermal conductivity with copper core center electrode. Proprietary 5-rib insulator reduces flashover and reduces voltage loss. Dual copper and glass seals bond the center electrode and insulator and seal the gas. Lasts 3 times longer than traditional plugs.

Using the same laser welding process as the Iridium Power Spark Plug, DENSO has designed a long-life spark plug that is factory installed in luxury vehicles by automakers such as GM, Toyota, Honda, and Mitsubishi. By using a patented iridium alloy, DENSO was able to shrink the center electrode to 0.7mm, dramatically improving ignitability and longevity.


Manufacturer: ‎Denso
Brand: ‎Denso
Model name: ‎Spark Plugs
Product model number: FXE20HR11 (4PK)
Discontinued by the manufacturer Yes: No
Genuine part number: MAZDA%1N1918110, NISSAN%224011HC1B, NISSAN%224012331R, NISSAN%22401CK81B, NISSAN%22401CP51B, NISSAN%22401EA014, NISSAN%22401ED815, NISSAN%2 2401JA01B, NISSAN%22401JD01B, NISSAN% 22401JD07B, RENAULT%7701065085, SUBARU%22401EA015
Position: ‎Left
Product weight: ‎36.3 g