Beck/Arnley Direct Ignition Coil P/N:178-8494
Beck/Arnley 178-8503 direct ignition coil for the 2009-2020 Nissan 370Z V6 3.7L and other vehicles turns battery voltage into the high voltage a spark plug needs to fire.
A misfire, rough idle or lit check engine light can point to a weak coil, but those signs alone do not prove it, since a worn spark plug is another common cause.
The 2009-2020 Nissan 370Z V6 3.7L, the 2014-2019 Infiniti Q70 V6 3.7L or V8 5.6L and the 2015-2019 Infiniti Q70L V6 3.7L or V8 5.6L all fit this coil, and so do many other vehicles. It matches OE form, fit and function.
Fit and size
Build and materials
One direct ignition coil. The V6-3.7L engines take six and the V8-5.0L and V8-5.6L engines take two, so order as many as your engine needs.
Interchange: 1415192 · E1117 · 22448EY00A · UF617 · W01331853636 · C1731
This part cross-references / interchanges with the following part numbers:
Does the Beck/Arnley 178-8503 direct ignition coil fit the 2014-2019 Infiniti Q70 V6 3.7L or V8 5.6L?
Yes, Beck/Arnley 178-8503 fits the 2014-2019 Infiniti Q70 with the V6 3.7L or the V8 5.6L. If your car is not named here, look up its year, make and model on the Buyer's Guide tab.
Is the Beck/Arnley 178-8503 coil ready to install out of the box?
Yes. Beck/Arnley 178-8503 is made to go straight onto the vehicle out of the box, and each listing is a single coil.
Are the windings in this Beck/Arnley ignition coil made of copper?
Yes. Both the primary and secondary windings are copper, and the coil is made from materials selected to withstand high temperatures.
How can I tell if this direct ignition coil is going bad?
A cylinder misfire, rough idle or lit check engine light can mean a coil is weak. A shop can read the misfire code and test the coil, which needs the engine running.
Does the UF617 number cross to Beck/Arnley 178-8503?
Yes. UF617 is one of the numbers this Beck/Arnley 178-8503 direct ignition coil replaces. The other cross-reference numbers are on the Interchange line of this page.
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.