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The J19LM and QJ19LM are Champion brand spark plugs used for garden machinery. The difference between them is their resistors, the J19LM use a regular resistor while the QJ19LM uses a CDI resistor.

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2014-05-23 21:48:22
This answer is:
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Lvl 1
2020-08-19 02:07:07
J19lm doesn't have a resistor
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Q: What is the difference between J19LM and QJ19LM plug?
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