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Motorcraft made in Japan spark plugs #4675654
02/23/18 04:07 PM
02/23/18 04:07 PM
Joined: Dec 2002
Posts: 4,306
The Garden State
Whimsey Offline OP
Whimsey  Offline OP
Joined: Dec 2002
Posts: 4,306
The Garden State
I recently ordered Motocraft SP-537 (CYFS-12Y-2) spark plugs for our 2.3 EcoBooost. They are Iridium fine wire on the firing portion only, the ground appears to be nothing special. I just found it interesting that these plugs are made in Japan for Motorcraft. I wonder if they are Denso or NGK made. I wonder if the factory plugs are the same.

Whimsey

Re: Motorcraft made in Japan spark plugs [Re: Whimsey] #4675678
02/23/18 04:33 PM
02/23/18 04:33 PM
Joined: Mar 2008
Posts: 7,517
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 7,517
USA
The factory plugs are the same NGK iridium as the Motorcrafts you just ordered smile

You will see the code LTR6DI-8 on the side, right between the nut and the ceramic insulator. The 6 indicated the heat range (on NGK's scale, higher number heat range is colder), and the 8 means .8 mm gap

The NGK part number is 96588

Somehow, the OEM Motorcraft (and ACDelco for GM) NGK-made iridium are priced lower than the NGK-branded ones in the NGK box crzy

Re: Motorcraft made in Japan spark plugs [Re: slacktide_bitog] #4675773
02/23/18 06:35 PM
02/23/18 06:35 PM
Joined: Dec 2002
Posts: 4,306
The Garden State
Whimsey Offline OP
Whimsey  Offline OP
Joined: Dec 2002
Posts: 4,306
The Garden State
Originally Posted By: slacktide_bitog
The factory plugs are the same NGK iridium as the Motorcrafts you just ordered smile

You will see the code LTR6DI-8 on the side, right between the nut and the ceramic insulator. The 6 indicated the heat range (on NGK's scale, higher number heat range is colder), and the 8 means .8 mm gap

The NGK part number is 96588

Somehow, the OEM Motorcraft (and ACDelco for GM) NGK-made iridium are priced lower than the NGK-branded ones in the NGK box crzy


Thanks. For these Motorcraft iridium plugs I paid $4.63/ea through Rock Auto. Seemed like a good price for these plugs.

Whimsey

Re: Motorcraft made in Japan spark plugs [Re: Whimsey] #4675802
02/23/18 06:59 PM
02/23/18 06:59 PM
Joined: Mar 2017
Posts: 6,955
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 6,955
...
Originally Posted By: Whimsey
Originally Posted By: slacktide_bitog
The factory plugs are the same NGK iridium as the Motorcrafts you just ordered smile

You will see the code LTR6DI-8 on the side, right between the nut and the ceramic insulator. The 6 indicated the heat range (on NGK's scale, higher number heat range is colder), and the 8 means .8 mm gap

The NGK part number is 96588

Somehow, the OEM Motorcraft (and ACDelco for GM) NGK-made iridium are priced lower than the NGK-branded ones in the NGK box crzy


Thanks. For these Motorcraft iridium plugs I paid $4.63/ea through Rock Auto. Seemed like a good price for these plugs.

Whimsey




That is a great price for iridium plugs.


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