Quote:
Originally Posted by stownsen914
It is O and not zero on the end of W3DPO, in case you are trying to order them. Maybe one vendor had it wrong?
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Might be, both Amazon and Rock Auto have it listed as a zero so I'm not sure, common mistake.
Bosch Spark Plug Part Number reference
Actually I think it's a zero, check 2nd page in link.
W3DP0
W = Seat shape and thread: 20.8 hex, M14x1.25
3 = Heat range
D = 19mm height incl seat, 17.5mm height excl seat, 3mm electrode height
P = Electrode Material: Platinum
0 = Designation Code: Differences from basic design