Used chain case from a 2009 Polaris Dragon RMK 155.  In good working condition.  


According to polaris.com this part fits (DO YOUR OWN RESEARCH BEFORE PURCHASING):


S08PG8ES 800 DRAGON RMK 155 SPECIAL LATE PROD (2008)
 S09PB5BS/BE 550 IQ SHIFT/EURO (2009)
 S09PE6HE/HEL/HS 600 DRAGON SP/ES EURO (2009)
 S09PE8ES/EEL 800 DRAGON SP/ES EURO (2009)
 S09PK6KS/KE/PM6KS/KE 600 RMK SHIFT 144/155/EURO (2009)
 S09PK8ES 800 RMK SHIFT 144 (2009)
 S09PL8ES/EE 800 ASSAULT RMK 146 (2009)
 S09PM7JS/JSL 700 RMK 155/ES (2009)
 S09PM8/PG8/PH8 800 RMK/ES/800 DRAGON RMK 155/163/ES/EURO ALL OPTIONS (2009)
 S10PG8/PH8 800 DRAGON RMK 155/163 ALL OPTIONS (2010)
 S10PK6HSA/HSL/HEA/PM6HSA/HSL/HEA 600 RMK 144/155/ES/INTL (2010)(S10PK6HSA/HSL/HEA/PM6HSA/HSL/HEA]
 S10PK8ESA/ESL/EEA/PM8ESA/ESL 800 RMK 144/155/ES/INTL (2010)
 S10PL8ESA/EEA 800 ASSAULT RMK/INTL (2010)
 S10PM7JSA 700 RMK 155 (2010)
 S10PP8 800 DRAGON IQ/ES/INTL ALL OPTIONS (2010)
 S10PS6 600 DRAGON SWITCHBACK ALL OPTIONS (2010)
 S10PS8 800 DRAGON SWITCHBACK/ES/INTL ALL OPTIONS (2010)
 S11PK6HSA/HSL/HEA/PM6HSA/HSL 600 RMK/144/155/ES/INTL (2011)

 S11PS6HSA/HSL 600 SWITCHBACK/ES (2011)