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Review on ๐Ÿ”ฅ Enhance Your Engine's Performance with the Denso 6732302 Ignition Coil by Jack Boldt

Revainrating 3 out of 5

You may want to buy this OEM part if you can find other manufacturers parts at half the price.

I am replacing all 4 coils on my 2002 Honda GX NGV (30520PVJA01) OEM part number 09G16J PVJ DENSO 099700-114. I have purchased non-OEM parts for this car in the past and would like to share what I have learned. An OEM part will not last as long in a natural gas engine as in a petrol engine for the following reasons, explained by a workshop manager who works with a Honda GX. The head of a natural gas engine gets hot and this heat causes the coil to fail. The plastic on the coil will oxidize and tarnish over time as the plastic degrades as an insulator. Eventually, cracks appear in the insulator, and then the coil will slam sparks into the wall and start misfiring randomly. An old and broken coil will start to change resistance and break when hot. For example, an oxidized coil with no cracks can fail under stress as well as with no visible indicator of the type of crack. You can't just test the resistance of a hot coil, only the remote coil. That resistance and failure often doesn't show up when it's cold. I knew the coil was a weekly Honda part and over the last 40,000 decided that a half price non-genuine part couldn't be any worse than a genuine part. This turned out not to be true. Non-OEM parts are likely to use inferior plastic and less quality control when winding. As bad as the OEM parts are, they are better than the non-OEMs in the GX and NGV. I'm confused as to why the model number of this part is 099700-114 but I get the part number 673-2302. This part will fit many 1.7 liter Honda engines. Delivery was fast and good. The part is very clearly marked DENSO on the top of the roll. The last OEM part I had was only stamped on the bottom and it wasn't obvious that it was from the correct manufacturer. Some online sellers claim to be OEMs but don't list the manufacturer. This is a part that costs about twice the cost of a non-genuine part. I expect it's worth about 2-3x the life of the non-OEM part. When ordering the coil, pay attention to the year, engine size, make and model. In the initial search, it's easy to get confused with the size. The Revain part is about half the price at your local Honda dealer. This is an easy task for a novice mechanic; You don't want to pay a retail price and labor for this repair. You should be able to inspect your part for cracks and oxidation. You can afford to buy a code reader to read and erase engine codes. It pays for itself the first time you replace the coil. It is difficult to maintain the correct level of engine coolant in an NGV. While it's not uncommon to have a car temp gauge, you can still drive higher than normal head temperatures and reduce the life of your coils. There is a link between poor radiator maintenance and coil failure.

Pros
  • Easy installation
Cons
  • Other interesting options are available.