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Ford Tractors Discussion Forum

Spark Plug for 641

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Author  [Modern View]

08-27-2017 11:53:43

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Do any of you 641 Workmaster owners have a recommendation for spark plug brands for my 641, I just pulled one of the plugs an it is the Autolite 216.

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08-29-2017 06:15:37

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 Re: Spark Plug for 641 in reply to ligg757, 08-27-2017 11:53:43  
Thanks Old. Ordered a set of 3112 plugs this morning.

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08-27-2017 16:19:30

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 Re: Spark Plug for 641 in reply to ligg757, 08-27-2017 11:53:43  
I still run the Autolite 437. Its a hotter plug so it helps with oil fouling a little. Mine still fouls out #4.

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08-28-2017 13:32:14

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 Re: Spark Plug for 641 in reply to RobCons, 08-27-2017 16:19:30  
If I where you I would try the NGK3112s the reason I switched to them is because they seem to foul out a whole lot less then the auto lites did

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08-27-2017 11:57:15

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 Re: Spark Plug for 641 in reply to ligg757, 08-27-2017 11:53:43  
My self I use the NGK3112 plugs in my Fords and some A/C tractors. Many say the auto lite 437 but since they are not made in the U.S. any more they have gone down hill

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08-27-2017 12:13:29

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 Re: Spark Plug for 641 in reply to old, 08-27-2017 11:57:15  
Same with me, have used autolite plugs with good results for years,

I did understand they have moved production off shore, Do not know what plug I will go with

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08-27-2017 14:29:24

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 Re: Spark Plug for 641 in reply to maxwell99, 08-27-2017 12:13:29  
That is why I switched to the NGK plugs they seem to hold up better then any other plug I have found in just about every thing I have. Cars Trucks Motorcycles and tractors

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