NGK 58912 direct ignition coil boot for the 2003-2008 Nissan 350Z V6 3.5L and other vehicles connects the ignition coil to the spark plug. Replacing the boot at the same time as the spark plugs helps prevent ignition problems such as flashover.
Cracks, tears or hardened silicone that you can see with the engine off and cool, or a misfire, can mean a boot is worn out. A misfire can start at the coil or the plug too, so trace it to the boot before you buy one.
This direct ignition coil boot is a direct-fit replacement for the 2003-2008 Nissan 350Z V6 3.5L, the 2003-2008 Infiniti FX35 V6 3.5L and the 2006-2008 Infiniti M35 V6 3.5L, and the V6 3.5L in each of them takes six boots. It is built to stringent OEM tolerances. If your car is not named here, look up your year and engine on the Buyer's Guide tab.
Interchange: 50057-1 · 175-1055 · 35-7048 · 671-6274 · CPB-N001
50057 · SPB114 · 702480 · 02560 · 2560 · 176019 · SPP50 · SPP50E
This part cross-references / interchanges with the following part numbers:
Does the NGK 58912 boot fit the 2003-2008 Infiniti FX35 V6 3.5L?
Yes. NGK 58912 fits the 2003-2008 Infiniti FX35 V6 3.5L, which takes six boots, as well as the 2003-2008 Nissan 350Z V6 3.5L.
Are the springs and resistors included with this ignition coil boot?
Yes. This boot includes the required internal springs and ferrite resistors, and the resistors give RFI noise suppression.
What is the NGK 58912 coil boot made of?
It is made of silicone, which is designed to withstand harsh environments.
How can I tell an ignition coil boot is worn?
With the engine off and cool, look for cracks, tears or hardened silicone on the boot. A misfire can also be a sign of a worn boot.
Is NGK 58912 the same part as CPB-N001?
Yes. NGK lists this boot under 58912 and under CPB-N001, so a search for either number finds the same part.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
