1952/1953 Spark plugs

For those who obsess about exactly how their 356 left the factory!
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Victor Ingram
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1952/1953 Spark plugs

#1 Post by Victor Ingram »

What would be the correct Bosch spark plug with number for a 52/53 early 1500 normal engine?
thx

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Spencer Harris
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Re: 1952/1953 Spark plugs

#2 Post by Spencer Harris »

W225 T1 for 1500N
W240 T1 for 1500S
bosch_parts_1500.pdf
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Spencer Harris
San Joaquin Valley, CA.

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Victor Ingram
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Re: 1952/1953 Spark plugs

#3 Post by Victor Ingram »

Excellent, Thank you Spencer

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James Davies
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Re: 1952/1953 Spark plugs

#4 Post by James Davies »

In addition, Bosch spark plug insulator design changed over the course of the 1950s. The early ones were not ribbed, and the green stripes were dark green and depending on year, had different thicknesses. The 1950s spark plugs have Bosch date code letters stamped into them for the year. So H for 1952 and J for 1953.

In the photo below, "P" 1958 on the left, "J" 1953 on the right.
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IMG_8974.JPG

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