This unit is compatible with the following skis:

2019 Spark 900 ACE  Spark 900 HO ACE  Spark TRIXX 

2018 Spark 900 ACE  Spark 900 HO ACE  Spark TRIXX 

2017 SPARK - All Models

2016 SPARK - All Models

2015 SPARK ACE 900 (2up)

2014 SPARK ACE 900 (2up) SPARK ACE 900 HO (2up And 3up)