Answers
Jun 03, 2019 - 08:09 AM
They are the same item, the Stay-IN-Play Duo supplemental braking system. The #9599006 is our Demco part number and the #99251 is the old SMI part number. No differences in the systems though.
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Jun 03, 2019 - 08:09 AM
View all SMI 9599006 Stay-IN-Play Duo Towed Vehicle Braking System Questions & Answers
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