It is not compatible with rzr170 .We have another regulator: Z144, Asin:B07KDDG6MX . That regulator is compatible with rzr 170 and you could find the model in the described list. Compatible with: Sports-man 90 ; Predator 50 ; Predator 90 ; Scram-bler 50 ; Scram-bler 90 ; Scram-bler 90 X Compatible with: DXL 90 Sierr. ; RXL 90 Viper ; RXL 70 Viper ; RXL 50 Viper ; AXL 50 Lightning ; TXL 90 Thunder; AXL 90 Lightning ?C 0 ; TXL 50 Thunder — 0 Compatible with: DS 90 ; DS 50 ; Quest 50 ; Quest 90 ; Compatible with 50 Yw50 Scooter Compatible with 3GF-H1960-00-00 3GFH19600000 03-ETON-50-70-90 0450553 0452061 A31600110000 A31600110001 ;Note: This item is a replacement part. Not OEM part. Please make sure the images are the same with what you want. If not, please do not purchase it even your model is in the described list! Compatible with : 90 — 2001 2002 2003 2004 2005 2006 Predator 50 ?C 2005 2006 Predator 90 — 2003 2004 2005 2006 50 ?C 2001 2002 2003 90 ?C 2001 2002 2003 90 X — 2002 Compatible with : AXL 50 Lightning ?C 2000 2001 AXL 90 Lightning — 0 DXL 90 Sierra ?C 2000 2001 2002 2003 2004 2005 RXL 90 Viper ?C 2002 2003 2005 2006 2007 RXL 70 Viper ?C 2004 2005 2006 2007 RXL 50 Viper ?C 2002 2003 2004 TXL 90 Thunder ?C 2000 2001 TXL 50 Thunder — 0 Compatible with : DS 50 — 2002 2003 DS 90 — 2002 2003 2004 2005 2006 Quest 50 — 2003 2004 2005 2006 Quest 90 — 2003 Compatible with : 50 Yw50 Scooter 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011