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Spark Plug Wrench

Marking: "Hazet" (15mm long)

Marking Direction:

     Length-wise, centered on shaft

Length: 24cm (239.3mm measured)

Weight **according to 1954 Catalog, these weighed 300gm

Decal: Hazet decal

Finish: Satin Silver

Tommy Bar

Length: 12cm

Finish: Satin Silver?

z.victor ingram.early A67992669643__72235C14-8C48-49B9-BFBD-F4C8D3CEB021.heic

note: "U" shaped underline in this example

photo courtesy of Victor Ingram

z.1954.763.Untitled 5.png


Note: 763 Spark plug wrench.

     "für Porschewagen."

NOTE Weight **according to 1954 Catalog, these weighed 300gm


Bosch W225T1

Type 1300, 1600 (normal)

Type 1300 S (Cold Season use)


Bosch W240T1

Type 1300 S, 1600 S










Page updated 1/2023

Date codes for Spark plugs in this section (but anything older would work as well):

I  = 1953 

J = 1954

K = 1955

L = 1956

From October 1955 Porsche Special Tool Catalog

Note: See the relevant service manual or driver's manual for your car to determine which one is correct.

First reference 1956 Owners Manual (Date unknown), for 1300, 1300 S, 1600, 1600 S engines:

page 10 of 1956 356A manual.jpg
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