"Ginger" wrote in message
news
I have a JD L120 mower. JD or Briggs want $10 for an oil filter. An
oil filter for my car costs about $3. So, does there exist a
cross-reference so a person could use a sensibly priced $3 oil filter
(albeit not bearing the JD or Briggs logos but that's OK!) for there
LT?

Try NAPA - maybe even napaonline or TSC.