Part numbers: 4016021, 4013979 Product name: oxygen sensor for Polaris Lambda sensor ATV Sportsman 570-450 EPS QUAD RZR 570 1000 XP XP 4 1000 Turbo Fitment: For 2015 RZR XP 1000 For 2015 RZR XP 1000 For 2015 RZR XP 1000 INTL For 2015 RZR XP 4 1000 For 2016 110 For 2016 570, 570 XP, FULL SIZE CREW For 2016 RZR XP 4 1000 For 2016 SPORTSMAN 110 For 2016 SPORTSMAN 570/450 EPS QUAD For 2017 110 For 2017 SPORTSMAN 110 For 2015 SPORTSMAN 570 EFI EPS FOREST QUAD For 2015 SPORTSMAN 570 SP EPS, QUAD For 2016 GENERAL 1000 EPS For 2016 R16RGE99A7//AV POLARIS GENERAL 1000 EPS For 2016 R16RGE99A7//AV POLARIS GENERAL 1000 EPS For 2016 R16RGE99A7//AV POLARIS GENERAL 1000 EPS For 2016 R16RT_87 900 XP ALL OPTIONS For 2016 900 XP ALL OPTIONS For 2016 CREW 900 ALL OPTIONS For 2016 RZR 1000 60 INCH ALL OPTIONS For 2016 RZR XP 1000 For 2016 RZR XP 1000 EU/ For 2016 RZR XP 4 1000 For 2016 RZR XP 4 TURBO For 2016 RZR XP TURBO For 2016 RZR XP TURBO, For 2016 RZR XP TURBO, For 2016 SPORTSMAN 570 EPS UTE QUAD For 2016 SPORTSMAN 570 SP EPS, QUAD For 2016 SPORTSMAN 570/450 EPS QUAD For 2016 SPORTSMAN TOURING QUAD 570 EPS For 2017 GENERAL 1000 EPS For 2017 POLARIS GENERAL 1000 4P For 2017 POLARIS GENERAL 1000 4P PS For 2017 POLARIS GENERAL 1000 EPS Colour: black Material: metal Package Contents: 2 * Oxygen Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.